1. Support Center Home Page

Welcome to the Solo Online Support Center.  Find answers to common questions, view parts lists, and product diagrams. 

 

 

 If you have any questions please feel free to contact us!

 

2. Backpack Sprayers

2.1. Operator's Manual
2.2. Service Bulletins
2.3. Getting Started
Getting started using your new Solo backback sprayer is easy. Click to go to any section of instructions.
2.3.1. Removing Nozzle
Unscrew the nozzle cap (1) from the nozzle body (3). This is bestaccomplished while the retaining nut (2) is fastened tightly tothe elbow (5). Next, unscrew the retaining nut (2). Push thenozzle body (3) out of the retaining nut (2). The filter withgasket (4) will come out with the body. To reinstall the nozzle,reverse the above instructions.
2.3.2. Assembly Instruction for Wand

1.  Insert wand into shut-off valve as shown.
2.  Tighten the screw cap clockwise onto the shut-off valve.

 

2.3.3. Pump Lever Installation
 
All hardware necessary for pump lever installation is included with the sprayer. The pump lever (C) should be installed as follows: place lever handle (C) onto the shaft (A). Align bolt holes and install the two bolts (E) and washers (F); then tighten. To install pump lever on the opposite side, remove the stop plate (D) and washer, install the pump lever as above. The stop plate (D) should be mounted on the inner bolt hole with the closed end of the stop plate pointing downward on the opposite side of the pump shaft.
2.3.4. Fold Away Pump Handle
1. Remove bolt and nut (A) from pump rod (B).

 

 

 

 

2. Slide handle assembly over the pump rod and align the holes so that the rear (elbow) portion of the handle points up and slightly forward and away from the Solo logo. Reinstall bolt and locknut. Pump handle can be installed on the opposite side of the sprayer for right hand pumping. (Stop plate will need to be relocated to the left side.)

 

3. The handle can be rotated to either down (pumping) or up (storage) positions. Note: The handle swings away from the sprayer, then up or down as desired. The spray wand attaches to the clamps on the handle assembly for storage (does not apply to the brass wand).

2.3.5. Shoulder Strap Installation
The top of the shoulder straps are pre-attached to the sprayer by means of a buckle. The lower end of the straps are attached by fastening the strap hooks to the metal frame between where frame exits the plastic tank and makes a bend.
2.3.6. Regulating Pressure
The Solo backpack sprayer is equipped with a built-in regulator to control output pressure. This regulator is operator adjustable. Make adjustments prior to filling tank. To adjust the regulator, remove the tank cap and the filter basket. Look inside the spray tank; you will see the top of the regulator. There are 4 fingers on the regulator knob. The finger farthest to the right is #1; to the left is #4. They are numbered 1, 2, 3, 4. 1 = 15 psi, 2 = 30 psi, 3 = 45 psi, 4 = 60 psi. The higher the pressure, the more chemical applied from the sprayer in a given amount of time, but the droplets will be smaller with more drift. If the spray pressure must be changed, excess pressure in the pressure cylinder must be released back into the tank through the spray tube. To adjust, push down on the knob and rotate to align the desired number with the alignment pin. If a spray pressure exceeding 60 psi (4 bar) is required, first release the excess pressure and then replace the adjustment piece with the optional plug (#4200215). The plug should only be used on piston pump sprayers.

Please note: the maximum pressure the models 425, 435 are capable of is 90 psi and the 474, 475, 476 and 485 models is 60 psi. For operating the 425, 435 at higher than 60 psi, the pressure control valve must be removed and replaced with an optional plug (#4200215) (see item B).

 

2.3.7. Filling
Mix the spray formula and the proper volume of water in a separate container. Pour the mix through the filter basket in the tank opening. This keeps debris from entering sprayer. Note: To fill the sprayer to its full 4 gallon capacity, set the pressure control valve to the 3 or 4 setting. (See Above: "Regulating the Pressure.") Add 2 or 3 gallons of spray formula mix. Pumpthe sprayer handle to prime the pump and fill the pressurecylinder. The volume of liquid in formula mix tank will appear todecrease as the pressure cylinder is filled. Liquid will flow through the top of the pressure regulator when the cylinder iscompletely full. Add the remaining formula mix to the tank.Remember that it's not necessary to completely fill the sprayer tank each time. Mix only the amount needed to get the job done.

Always read and follow manufacturer's instructions printed on the product label. This cansave money and help prevent crop and environmental damage.

2.3.8. Operating Features

Nozzles - Your Solo sprayer is standard with nozzle arrangements to provide a variety of spray patterns. 
  

Item Application Part #
Flat spray nozzle Row treatment 4074263
Jet stream nozzle Spot & longer range 4074755
Jet stream nozzle and Swirl plate = Hollow Cone Shrubs and bushes 4074755
4074756
Plastic adjustable nozzle Spot, shrubs & bushes 4900527
2.3.9. Sprayer Tip Assembly
1. Flat spray nozzle
2. Filter
3. Jet cap
4. Swirl plate
5. Nozzle cap
6. Nozzle body
7. Brass adj. nozzle*
8. Nozzle retaining nut













  Flatspray    

Hollowcone
 spray

Brass
adjustable
nozzle

Jetstream

Plastic
adjustable nozzle



* Brass adjustable nozzle is not a standard item on all sprayers.
Spray tips should be assembled as above for desired spray pattern
2.3.10. Spraying

Prime the pump with rapid pump strokes. When you feel very firm resistance, the pressure chamber is filling with liquid. With repeated piston strokes, the air in the pressure chamber is slowly compressed. By pressing the hand lever, the valve opens, and liquid is forced through the nozzle. The shut-off valve has a retaining clip which keeps the valve in the "OPEN" position for continuous operation. Pump using the end of the pump handle, as it is less fatiguing. The volume of liquid delivered varies with the working pressure which should be as high as needed to ensure an adequate spray pattern for each individual application.

NOTE: Should the pressure drop very quickly, drain the tank completely and pump without liquid. By this procedure, the air chamber is refilled with the required volume of air. It is advisable to pump the tank completely empty from time to time.

2.3.11. Wettable Powders
Wettable powders are abrasive by nature and will cause wear to the Viton® collar, piston pump and cylinder of the model 425, 435 sprayer. The Solo models 474, 475, 476 and 485 sprayers with a diaphragm pump are generally resistant to abrasive materials and are recommended for this purpose. Note: If you use a wettable powder in your 425, 435 sprayer, be sure it is thoroughly mixed in the formula solution. Immediately after use, be sure to remove the piston, clean and lubricate the Viton® collar with Solo Superior Grease or petroleum jelly. Thorough flushing of sprayer will extend the useful life of its working parts. If you use wettable powders in the piston pump sprayer be sure to inspect regularly for seepage around the piston and repair accordingly.
2.3.12. Cleaning

  • After spraying, clean the tank thoroughly. If some spray liquid is left inside, drain tank completely.

  • Pumping causes air to be taken in and the remaining liquid to be discharged. Pump until liquid and air are coming out through the nozzle.

  • Refill tank with a few quarts of clean water and pump the water out as explained above (if necessary, repeat this procedure several times).

  • If the shut-off valve is removed, the pump can be flushed quickly. Improper spray distribution is the result of a clogged nozzle, which is easily removed and cleaned.

  • Soap and water may also be used to clean tank.

  • Do not use aggressive cleaning agents or abrasives.

  • Follow the recommendations of the chemical manufacturer for disposal of waste water and chemicals.

  • Activated charcoal in liquid or other form may be used to absorb chemicals in tanks or spills.

 

NOTE: When cleaning the sprayer after working with hormone weedkillers, follow the instructions of the herbicide producers. Neutralize with activated charcoal. (Example: add 0.35 oz./1 g. of activated charcoal to 1.7 pint/1 liter of water and leave this detergent in the tank and the lines approximately 24 hours.) This is very important if other chemicals should be sprayed as the residues of the herbicide may damage susceptible plants. Cleaning after application of products containing carbolineum, if they are not water soluble, should be done with a 5% soda lye having a temperature of 104°F (40°C). Rinse with plenty of clean water.

2.3.13. Maintenance and Storage Tips
 

To protect the piston, cylinder and Viton® collar, a fine mesh, stainless steel screen is located on the pressure cylinder inlet.

If you find that your sprayer will not empty the formula tank, check for a clogged inlet screen (2). The inlet screen is located at the bottom of the pressure cylinder on the side that faces your back.

One indication that it needs cleaning is that when you let go of the pump handle, it "springs" to the down position. The screen can be cleaned with a small bristle brush or a discarded toothbrush. See diagram for location of screen.

1. Pressure Cylinder
2. Inlet Screen
3. Cylinder Support
4. Pressure Control
    Valve

  • After operation, the sprayer should be stored away from direct sunlight to prevent UV damage.
  • After removing the pump or when mounting a new
    Viton® collar, treat both the collar and the piston with
    water-resistant grease.*
  • Before winter, drain all liquid in tank, lines and air
    chamber. (See "Cleaning.") Leave shut-off valve locked in the "open" position.
  • For service, call on your nearest Solo dealer.
    Always insist on original Solo spare parts.
  • Regularly inspect hose, wand, pump, tank and shut-off valve for wear, damage or leaks. Repair promptly.

Avoid excessive wear by:

1) Regular lubrication of Viton® collar, cylinder and piston with water resistant grease.*
2) Prompt and thorough cleaning and flushing of sprayer. Soap and water work well.

*Use Solo Superior Grease (#9850). Petroleum jelly may also be used.

2.4. General Information

 

Since its launch into the market in the 1960's, the Solo backpack sprayer has retained its pleasing appearance, efficiency, and ergonomic design. While little has changed in the sprayer's physical appearance, it has undergone many significant changes in functional efficiency, materials, and durability.

Often poorly imitated, the Solo backpack sprayer maintains its worldwide leadership role through adherence to quality and performance standards which are widely envied. Solo offers customers a wide choice of products and features.

425 (4 gal.) and 435 (5 gal.): piston pump generates higher pressure to atomize the formula. The droplets are smaller and hence suitable for pest control. Use a Solo 425 or 435 sprayer when treating shrubs, bushes, and trees with insecticide or liquid fertilizer.

475 474, 476 (4 gal.) and 485 (5 gal.): diaphragm pump generates lower pressure resulting in larger droplets with less spray drift but thorough coverage. The diaphragm pump is preferable for use with wettable powders whose abrasive nature may cause wear to piston pumps.

2.4.1. Unit Weight

HOW HEAVY IS THE UNIT?

When empty, models 425, 474, 475 and 476 weigh only 9.5 lbs. and models 435 and 485 weigh 11.5 lbs.

2.4.2. Pressure Limitations
CAN THE SPRAY TANK STAND THE PRESSURE?

Although quite strong, the spray tank itself is intended only as a container for the spray solution. Pressure is maintained in a separate pressure chamber. This chamber is injection molded and built to withstand normal operating pressure. Additionally, an internal pressure control valve has been fitted to the cylinder and has four pressure settings adjustable to specific spraying needs (see "Regulating the Pressure" page 2).

2.4.3. Spot Spraying
CAN I DO SPOT SPRAYING?

The shut-off valve on the Solo sprayer is well suited for spot spraying. It's almost effortless! The shut-off valve handle incorporates a clip which holds the trigger valve open for area spraying without tiring the operator's hand. A pressure gauge may be added with increments from 5 psi up to 90 psi.

2.4.4. Pumping
DOES THE UNIT REQUIRE CONSTANT PUMPING?

The well-designed lever action greatly reduces the pumping effort. The pressure cylinder within the tank has a hydraulic effect. Liquid from the pump compresses air in the pressure chamber which allows irregular pumping action, yet results in steady spray at the nozzle.

2.4.5. Chemical Compatability
CAN I USE WEEDKILLER AND INSECTICIDE IN THE SAME SPRAYER?

In theory you can, if the sprayer is thoroughly cleaned out with a bleach:water solution of 1:25. In practice, the use of both types of chemicals in the same unit is not recommended as the risk to the plants can be high. Use caution when handling any type of chemical and when cleaning your sprayer.

2.4.6. Sprayer Uses
POSSIBLE USES OF SPRAYER:

Plant feeding and protection - A variety of spray tips enables user to perform foliar feeding or apply fungicides and pesticides effectively.

Herbicides - May be applied to reduce pesky weeds and plants; however, avoid using same sprayer for plant feeding or protection without first thoroughly cleaning. (See "Cleaning".)

Indoor use - Sprayers may be used to apply detergents, vinegar, cleaning solutions, warm water up to 120°F (49°C) and other nontoxic household cleaning and maintenance liquids. Carpets, walls, glass, floors, ceilings and other surfaces can be treated. Do not use sprayer which has previously been used with herbicides, pesticides or other toxic chemicals.

Outdoor use - Window cleaner, detergent, general purpose cleaning solutions, certain wood preservatives, waxes, waterproofing, and diluted household bleach (maximum 1 part household bleach with 9 parts water solution) are among the many things Solo sprayers can apply. Avoid using sprayer for cleaning and other applications once it has been used for plant protection or herbicide spraying. If sprayer was used for herbicide or other spraying first, clean the sprayer as described on page 4 before using.

2.4.7. Calibrating The Sprayer
CALIBRATING THE SPRAYER

The output of the sprayer should be checked by collecting and measuring the spray liquid emitted during one minute. Maintain steady pumping on the pump handle while measuring. Having determined the output from the nozzle in gallons/minute, the rate per unit area treated can be calculated knowing the swath width and walking speed.

Gal./acre = (Gal./min. of nozzle) x 43560 Sq. ft./acre
(Sq. ft./min.)
Note: Gal./min. for standard nozzles

4074263 Flat Spray Nozzle 5 PSI = .22 Gal./min. nozzle
29 PSI = .33 Gal./min.
44 PSI = .40 Gal./min.
4074755 & 4074756 Hollow Cone Nozzle 15 PSI = .17
29 PSI = .24
44 PSI = .29
4900527 Plastic Adj. Nozzle 40 PSI = .4 straight stream
40 PSI = .2 hollow cone

Sq. ft. / min. = speed (ft./min.) x swath width (ft.)

1. Determine the nozzle's rated capacity. See page 6 for nozzle ratings. Get the capacity in gallons/minute at the desired pressure. Test the delivery of the nozzle. Spray for one minute and collect the spray.

Gal./min. = oz. collected/minute
128 oz. = 1 gal.


2. Compute the area covered in square feet per minute. Select a comfortable walking speed and figure how many feet per minute you walk. A convenient fast walk for some is 2.5 mph, but this may vary. One mile per hour equals 88 feet per minute. An easy way to calculate is to simply measure the distance you walk in one minute.

3. Compute the gallons per acre. The above information is used to compute the gallons of spray that will be applied per acre.

2.4.8. Nozzle Tip Specifications

 

Nozzle Tip Specifications
Description Order Number Spray Volume Pressure Angle Applications
1/min US gal
/min
atu
atm
psi
Flat spray nozzle 4074263* 0.88 
1.25
1.53 
.23
.33
.40 
1.0
2.0
3.0
15
29
44 
120°
120°
120° 

Area and row treatment

Flat spray nozzle - brass plastic with
stainless steel insert
0065210
0065132
0.46 
0.64 
0.78 
.12
.17
.21 
1.0
2.0
3.0
15
29
44 
80°
80°
80° 
Adjustable nozzle - brass - plastic 4900207**
4900527*
1.53
0.76 
.40
.20 
2.8
2.8
40
40  
Straight Stream 
Hollow Cone 

Tree Spraying (adjustable spraying pattern)

Full cone nozzle 0065212 30°-50°  Game repellants of high viscosity
Full cone nozzle 0065213
30°-50°  Game repellants of low viscosity
Full cone nozzle 0065214         Game repellants
Hollow cone nozzle
1 mm orifice
4900209 0.40
 0.55 

.10
.15  

1.0
2.0
15
29
  Shrubs, bushes

Hollow cone nozzle
1.4 mm orifice
4900252 0.64
0.91
1.11 

.17
.24
.29

1.0
2.0
3.0
15
29
44 
50°
65°
 65° 
Hollow cone nozzle
1.8 mm orifice
4900322* 0.88
1.2
 1.53 
.23
.33 
40 
1.0
2.0
3.0
15
29
44
55°
70°
72° 
No-drift nozzle
AN 0.5
4074383 0.23  .06  1.0  15  90°   Mainly for herbicides at low pressure

No-drift nozzle
AN 1.0
4074385 0.28 
0.38
0.46 

.07
.10
.12 

0.4
0.7
1.0
6
10
15 
100°
100°
100°
No-drift nozzle
AN 2.0
4074386 0.55 
0.76 
0.91 

.15
.20 
.24 

0.4
0.7
1.0
6
10
15 
100°
100°
100° 
No-drift nozzle
N 2.5
4074514 0.72
0.95
1.14 

.19 
.25
.30 

0.4
0.7
1.0
6
10
15 
110°
110°
110° 
No-drift nozzle
AN 5.0
4074513 1.80
1.90
2.28 

.48 
.50
.60 

0.4
0.7
1.0
6
10
15 
120°
120°
120°
Foam nozzle 4900397 0.76 
0.90 
1.01
1.10

.20
.23
.26
.29

3.0
4.0
5.0
6.0
45
60
75
90
The XAN 2 nozzle is suited for low drift and water saving application of herbicides which tend to foam

2.5. Service and Repair
Click on a link on the left for information about service and Repair.
2.5.1. Service & Repair Video
Click Here to view a Service and Repair Video  (Windows Media Player)
2.5.2. Pump Operation
 
How The Pumps Work

During the upward stroke of the handle on either the piston (1) or diaphragm (2), liquid is drawn from the formula tank (3) through the intake channel (4) into the space above the pump. The lower valve plate (5) opens the intake channel (4) while the upper valve plate (8) closes the transfer ports (6). During the subsequent upward strokes on piston or diaphragm, the previously siphoned liquid is forced through the four transfer ports (6) and into the pressure cylinder (7). During this compression phase, the upper valve plate (8) opens the transfer ports and the lower valve plate closes, sealing the intake channel (4). The transfer ports cannot be sealed by the lower valve plate.

Through repetition of these piston or diaphragm strokes, the air in the pressure cylinder is being slowly compressed by the forced-in liquid. A prerequisite for this condition is a closed shut-off valve. These pumping strokes can be carried out until the required pressure is reached.

After opening the shut-off valve, continue to pump slowly and steadily in order to maintain a consistent rate of discharge.

 

Models 425, 435
Piston Pump

Models 474, 475, 476, 485
Diaphragm Pump

2.5.3. Troubleshooting
 
Backpack Sprayer Troubleshooting Guide

PROBLEM

CAUSE

SOLUTION
Difficulty in moving pump lever Dirty bushing


Dirty cylinder walls (425)


Collar swollen from long term exposure (425)

Lack of lubrication (425)
Remove pump lever, clean & grease bushings

Remove piston, clean/replace piston & collar

Replace collar and maintain according to instructions

Lubricate Viton® collar

Insufficient resistance during repeated pumping and no pressure Damaged/dirty valve plates

Damaged O-ring at valve seat

Collar or piston (425) worn

Seal in pressure regulator is leaking

Clean or replace valve plates or cylinder

Replace O-ring 

Replace collar or piston

Check seal and valve seat


High resistance after just a few pumping strokes, pressure lasts only briefly Little or no air cushion in pressure cylinder Remove PVC hose, drain pressure cylinder, Reconnect hose. Preventive measure - release pressure after each use

During spraying, upward pumping becomes more & more difficult and tank walls may indent upwards

 

When handle is pulled up it wants to move itself forcibly back down

Wrong formula tank cap (no vent hole)

Vent hole clogged

Lower valve plate sticks

Intake channels clogged

Inlet screen at base of pressure cylinder clogged

Replace with vented cap


Clean vent hole.

Replace valve plate

Clean channels & tank

Clean intake screen with a small brush and detergent

Leaks inside cylinder (425)
Leaks outside cylinder (425)




Leaks from diaphragm pump  (474, 475, 476, 485)





Leaks from end of spray wand
Damaged/dirty collar or piston


Damaged O-ring on cylinder

Damaged O-ring on pressure cylinder

Damaged diaphragm

Damaged O-ring on diaphragm housing

Damaged O-ring on pressure cylinder

Worn or damaged shut-off valve
Clean or replace collar and possibly cylinder if worn

Replace O-ring

Replace O-ring


Replace diaphragm

Replace O-ring


Replace O-ring


Inspect and rebuild shut-off valve 

 

Note: Always wear rubber gloves, safety goggles and appropriate protective clothing when repairing a sprayer. Work in well ventilated area. Prior to repair, flush unit with water by filling, then spraying the water into an appropriate container or area. Ensure that all pressure is released by locking the shut-off valve in the open position. Once a repair is completed, fill the unit with clean water, pressurize, and check for leaks. If the sprayer leaks, Do Not Use. Repair leaks and recheck.

2.5.4. Piston Pump Repair
 
Piston Pump Disassembly And Repair


1) Using a 13mm socket wrench remove the handle bolts, and set handle and bolts aside. Lay unit on its back with pump system facing you. See Figure 1. Loosen hose clamp (E) by unscrewing the bolt. Pull off sprayer hose. Caution: there may be liquid inside the hose and
pressure cylinder even if the tank is empty. Wear protective gloves. Next, remove the nut and bolt from protective cap, and remove cap (C). Loosen stop plate (A) but do not remove. Rotate the pump shaft to access the two lever bolts in the center (B). Using a 6mm Allen head wrench, remove them. Pull the piston (F) out of the piston cylinder (D)



Figure 1

2) To remove the piston cylinder assembly, turn the piston cylinder counter clockwise when viewing from the bottom. Figure 2. Caution: the piston cylinder has sharp edges.

 


Figure 2

3) Check the inside of the piston cylinder and the piston for vertical scratches. If the piston cylinder or piston are scratched, replace it. Figure 3.

 


Figure 3

4) To remove the connecting rods from the piston and lever, insert a flathead screwdriver between the two connecting rods and twist. Figure 4.

 


Figure 4

5) With the new piston, place the two connecting rods over the studs on the inside of the piston. Place the lever studs into the connecting rods and snap together with your fingers. Figure 5.

 


Figure 5

6) To replace the Viton ® collar, push it off of the top of the piston with your thumb. Figure 6. Install the new collar on the piston crown into the form fitted sides.


Figure 6

 

7) Remove the valve plate and O-rings from the outside of the piston cylinder. Install the new valve plate and the two O-rings, making sure the O-rings seat in the grooves. Finally, inside the piston cylinder you will find a second valve plate. Using needle nose pliers, pull out the red or orange pin and remove the valve plate. Figure 7. Install a new valve plate and firmly reseat the retaining pin using needle nose pliers. Figure 8.

 


Figure 7


Figure 8

 

8) Next, assemble the piston cylinder. First grease the O-ring on the piston cylinder, being careful not to get any on the valve plate, and then place the piston cylinder into the pressure cylinder. Screw the piston cylinder clockwise until it is tight and the bottom O-ring is no longer seen. Figure 9. When properly seated the notch on the piston cylinder (G) will line up with the catch on the pressure cylinder (H). Figure 10.

 


Figure 9


Figure 10

 

9) Apply a light coat of grease to the inside of the piston cylinder wall and on the Viton® collar, and then re-install the piston into the piston cylinder. Figure 11. Insert the piston at a slight angle with the leading edge of the Viton® collar placed over the slot in the piston cylinder. Install the 6mm Allen head bolts through lever base into shaft.

 


Figure 11

10) Replace the protective cap and tighten the nut and bolt. Reinstall the handle. Re-tighten the stop plate, making sure the bolt goes through the rear hole. Replace the hose and black hose clamp making sure it is firmly secured.


Figure 12

2.5.5. Diaphragm Pump Repair
DiaphragmPumpDisassembly and Repair

1) Loosen the stop plate (A) and remove the two Allen headscrews(B) that hold the connecting pieces to the pump rod. Figure 13.



Figure 13

 

2) Remove the pump rod (C) and the hose (D). Next, loosen the clamp at the base of the sprayer (E). Figure 14.


Figure 14

 

3) Push the pressure cylinder approximately 1" out of the bottom of the tank.Then turn the pump assembly 180°.

 

4) Next, remove the12 torx screws that hold the flange in place. The flange and diaphragm can then be removed. Figure 15. Note: For clarity of this information the pressure cylinder is shown removed from the tank.

 


Figure 15

 

5) To replace the diaphragm, remove the connecting rod retaining screw (G) from the plunger and lever (F). Replace the diaphragm and reassemble.See Figure 16.

 


Figure 16

 

6) The valve assembly (H) is removed using a locally made tool. See tool drawing for measurements to make tool. Remove valve plate retaining pin and insert tool into slots. See Figure 17. Use a screwdriver to rotate tool counter-clockwise.

 


Figure 17

(Tool can be ordered from Solo - #4400222-T  $1.95)

 

7) Once the valve assembly is removed, the valve plates and O-rings can be replaced.
Remove the lower valve plate by pulling out the red retaining pin. Figure18.

 


Figure 18

 

8) The pump housing (I) is separated from the pressure cylinder (J) by pulling it off. Figure 19. The O-ring can then be replaced.


Figure 19

 

9) When reassembling the pump housing to the pressure cylinder, be sure the square tab on the pump housing (K) is aligned in the notch. See arrows(L) on the pressure cylinder in Figure 20. Be careful not to pinch or nick the O-ring.


Figure 20

 

10) Screw the valve assembly into the cylinder. Be sure that the two square holes on the threaded portion of the valve assembly are aligned with the holes in the pressure cylinder. If the pressure cylinder was removed, look through the inlet screen to check alignment. If the pressure cylinder was not removed, the four holes of the valve assembly must be centered on and facing the hose nipple.

 

11) Reinstall the diaphragm and the flange with the twelve screws. Note: The rib with"Solo" on the lever should be facing and in line with the hose nipple. Tighten the large clamp and reinstall other parts.
2.5.6. Pressure Cylinder Repair
 
Diaphragm Pump Disassembly and Repair

1) Loosen the stop plate (A) and remove the two Allen head screws (B) that hold the connecting pieces to the pump rod. Figure 13.



Figure 13

 

2) Remove the pump rod (C) and the hose (D). Next, loosen the clamp at the base of the sprayer (E). Figure 14.


Figure 14

 

3) Push the pressure cylinder approximately 1" out of the bottom of the tank. Then turn the pump assembly 180°.

 

4) Next, remove the 12 torx screws that hold the flange in place. The flange and diaphragm can then be removed. Figure 15. Note: For clarity of this information the pressure cylinder is shown removed from the tank.

 


Figure 15

 

5) To replace the diaphragm, remove the connecting rod retaining screw (G) from the plunger and lever (F). Replace the diaphragm and reassemble. See Figure 16.

 


Figure 16

 

6) The valve assembly (H) is removed using a locally made tool. See tool drawing for
measurements to make tool. Remove valve plate retaining pin and insert tool into slots. See Figure 17. Use a screwdriver to rotate tool counter-clockwise.

 


Figure 17

7) Once the valve assembly is removed, the valve plates and O-rings can be replaced.
Remove the lower valve plate by pulling out the red retaining pin. Figure 18.

 


Figure 18

 

8) The pump housing (I) is separated from the pressure cylinder (J) by pulling it off. Figure 19. The O-ring can then be replaced.


Figure 19

 

9) When reassembling the pump housing to the pressure cylinder, be sure the square tab on the pump housing (K) is aligned in the notch. See arrows (L) on the pressure cylinder in Figure 20. Be careful not to pinch or nick the O-ring.

 


Figure 20

 

10) Screw the valve assembly into the cylinder. Be sure that the two square holes on the threaded portion of the valve assembly are aligned with the holes in the pressure cylinder. If the pressure cylinder was removed, look through the inlet screen to check alignment. If the pressure cylinder was not removed, the four holes of the valve assembly must be centered on and facing the hose nipple.

11) Reinstall the diaphragm and the flange with the twelve screws. Note: The rib with "Solo" on the lever should be facing and in line with the hose nipple. Tighten the large clamp and reinstall other parts.
2.5.7. Shut-Off Valve Repair
 
Shut-Off Valve Disassembly & Repair

1).Complete shut-off valve. Figure 27.

 


Figure 27
2) Remove the retaining pin (A). Rest the split end of the retaining pin on a hard surface (such as a table) and push. Once the retaining pin pops up, remove it. Now slide the handle off the valve body. Figure 28.

 


Figure 28
3) With the handle off, remove the screw cap, spring, and valve body. Replace worn parts. Lubricate the O-rings and reassemble in reverse order. Note: The valve body (B) depicted is white for clarity. Figure 29. Next, place the handle groove into the slotted part of the valve body, making sure that the locking clip is positioned correctly. Insert the retaining pin. Push down on the handle and release repeatedly so the grease distributes evenly.  


Figure 29

2.5.8. Wand Repair Kit
 
Wand Repair Kit 0610411-K

The backpack and handheld sprayers use the same shut-off valve, wand and elbow nozzle assemblies, and repair kit. If the sprayer is equipped with a plastic adjustable nozzle, unscrew the nozzle cap first. Remove the nut, nozzle, nozzle O-ring, filter, filter O-ring, and elbow from the wand. Remove the O-ring from the elbow, and discard. Reassemble using the nut, nozzle, new nozzle O-ring, filter, new filter O-ring, elbow and new elbow O-ring in that order. Reassemble the retaining nut to the elbow. Metal screen filters with rubber-like gasket do not require an O-ring on either side.

Remove the wand from the shut-off valve assembly. Remove the O-ring from the wand and replace with new O-ring. Set the wand aside.

1) Disconnect the shut-off valve from the hose. Remove the retaining pin. Press the split end of the pin on a hard surface (such as a table) and push. Once the retaining pin pops up, remove by pulling out. Now slide the handle off the valve body. With the handle off, remove the screw cap, spring, and valve body. Replace worn parts. Lubricate the O-rings and reassemble in reverse order. Note: The valve body (c) depicted is white for clarity. Figure 29, page 10. Next, place the handle groove into the slotted part of the valve body, making sure that the locking clip is positioned correctly. Insert the retaining pin. Push down on the handle and release repeatedly so the grease distributes evenly.

2) On the older backpack sprayers without a metal washer between the clamp and screw cap, the clamp is to be replaced with the newer version in the repair kit. Remove the old clamp, O-ring, screw cap, and cut off approximately one inch of the hose. Install the new screw cap and metal washer over the hose. Wearing gloves to protect your hands from the heat, place the end of the hose in boiling water for fifteen seconds. Partially insert the longer end of the clamp into the hose and push against a flat surface. Finally put the O-ring onto the clamp. Pull the screw cap and metal washer up to the shut-off valve and screw tight.

3) Reinstall the wand to the shut-off valve. Finally, reinstall the elbow to the wand.

4)Test with water before using.

2.5.9. Wand Tip Assembly Video
Click Here to view the wand tip assembly video (Windows Media Player)
2.6. Spare Parts Lists
 
2.6.1. 425, 475, 435, 485, 474, 476 Illustrated Backback Sprayer Parts List

Special Parts& Accessories 
(Not shownin parts list)
Click on order number to order desired part.

OrderNo. Description
4900310N Conversionkit (from piston to diaphragm pump)
0610406-K Diaphragm,pump repair kit includes 8, 11-13, (2 ea.), 24, 25,66
0610407-K Pistonrepair kit includes 8, 10-13, 20 (2 ea.), 24, 25, 44
0610411-K Wandrepair kit includes7-10, 22, 26, 34, 49, 103 (see 13)
0610409-K Piston,rod & collar kit includes 41-44, 54
4400203 PumpAssembly (425,435) includes 1,8,11,12,13,20 (2 ea.),39,40,41,42,43,44,54
4400221 PumpAssembly (475,485) 1,8,11,12,20 (2 ea.), 39,61,63,64,(13 ea.),65,66,67,68,69,70,72 (2 ea.), 106

 

BackpackSprayer Parts List -Order
Part numbers correspond withimage above.
Click on order number to order desired part.

Pos.No. OrderNo. For 
Model
Description
2 0010165 Bolt
3 0012185 Bolt
4 0030131 Washer
6 0012185 Bolt
7 0610402-K Shut-off valve repair kit
8 0062258 gasket
10 0062115 O-ring
11 0062291 O-ring
12 0062139 O-ring
13 0062140 O-ring
14 0064234   Hose48" (item 34 incl.)
15 0066388 Hose clamp
16 0066394 Clamp
17 4043123 Stop Plate
18 4035111 Pump Shaft
20 4061257 Valve Plate
21 4200242 Red tank cap (item 48, 98 & 99incl.)
-- 4200305

Heavy Duty

Black tank cap (item 48, 98 &99 incl.)
22 4074148 Retainingnut
23 4074323 Valve body
24 4074350 Sealing piece
25 0070260 Compression spring
26 4074337 Retaining Nut
27 4074344 Control knob
28 4074410 Bushing
29 4074263 Flat spray jet
30 4074756 Swirl plate
31 4074283 Jet filter
32 4074755 Jet cap
33 4900527 Plastic adjustable nozzle (inc. a& b)
34 4074500 Clamp
35 4074527 Elbow
36 4200162

425,474,
475,476

Tank& frame assy., 4 gal
call for pricing 435,485 Tank &frame assy., 5 gal
37 4200106 Filter Basket
38 4300315 Carryings trap (item 73 incl.)
39 4400240 Pressure cylinder 
(item 10, 23-25, 27 incl.)
 39  4400240N Pressure cylinder (solid)
40 4073190 Cylinder assy. (item 12,13,20 inc.)
41 4074409 Connecting rod without stud
42 4074262 Lever
43 4073558 Piston
44 4400189 Viston®collar
45 4800170 Shut-offv alve assy.
46 480017325 Pump lever (item 75 incl.)
47 4900230 Spray tube 20"
48 4061345 Gasket
49 0031356 Washer
51 4074680 Protective cover
52 0010110 Bolt
53 0020101 Hex nut
54 4074408 Connecting rod with stud
55 4074412 Buckle
55-a4074425  Pin, backpack straps
584074996 Clip, wand retaining
60 4073411 Housing (diaphragm)
61 4073410 Flange
63 4400222 Valve assy. (item 12, 20 incl.)
64 0018275 Screw
65 4074256 Plunger
66 4074246 Diaphragm
67 4074255 Lever
68 4031130 Wrist pin
69 4074234 "R"connecting bracket
70 4074243 "L"connecting bracket
72 0010141 Bolt
73 4074837 Hook
75 4074392 Grip
97 4074295 Pin
98 4061464 Vent plate
99 4074123 Vent cap
100 4074329 Lock clip
101 4074336 Retaining nut
102 4074335 Lever
103 0062271 O-ring
106 0062324 O-ring
1 4200215 Plug (item8 incl.)
50 4900454 Fold away handle (item 58 incl.)
56 0020119 Nut
57 0012192 Bolt
58 4074996 Clip
59 0065210

Heavy Duty

Brassflay spray nozzle
 

4073725

 Carry Handle
76 4900430   Driftguard
80 4900477 Double spray nozzle
81 4900528 Extension wand 60" (1250 mm)
90 4900622

Heavy Duty

Pressure gauge w/connection parts
92 4900513 Extension tube 20" (500 mm)
94 4074338 Retaining nut
95 0062249 O-ring
-- 0610410-P Adj. spray nozzle assy.
-- 4900207 Adj. spray nozzle
-- 4300343 Shoulder saver harness
96 4900258N Elbow nozzle assy.
2.6.2. 416 Spare Parts List
2.7. 416 Backpack Battery Sprayer Spare Parts List
3. Handheld Sprayers
3.1. Operators Manuals
3.2. Service Bulletins
3.3. General Use Information

Getting started using your new Solo handheld sprayer is easy. Click to go to any section of instructions.

3.3.1. Using Nozzle
 
To change the spraying pattern, first make sure the retaining nut (2) is screwed tight to the elbow (5). If it is not tight, the nozzle cap
(1) and nozzle body (3) will rotate inside the retaining nut and the nozzle will not adjust.

For a straight stream pattern, rotate the nozzle cap outward. For a hollow cone pattern, rotate the nozzle cap inward towards the retaining nut.

If it becomes difficult to rotate the nozzle cap, remove the nozzle cap from the nozzle body and lubricate the O-ring on the nozzle body with a non-water soluble grease*.



1. Nozzle Cap
2. Retaining Nut
3. Nozzle Body
4. Filter
5. Elbow

 

3.3.2. Removing Nozzle


Unscrew the nozzle cap (1) from the nozzle body (3). This is best accomplished while the retaining nut (2) is securely fastened to the elbow (5). Next, unscrew the retaining nut (2). Push the nozzle body (3) out of the retaining nut (2). The filter (4) will come out with the body. To re-install the nozzle, reverse the above instructions.


3.3.3. Operation


• Before using sprayer with chemicals, fill sprayer with fresh water to
  assure that you have it properly assembled; pressurize and then
  practice spraying. When thoroughly familiar with sprayer operation,
  follow normal operating procedures.

• Turn pump handle counter clockwise to remove pump.

• Fill tank with premixed formula up to desired level. Do not exceed
  maximum fill mark. Observe recommendations of chemical     
  manufacturer.

• Tighten cap and pump assembly for a good seal.

• Pump to a maximum 45 psi or 3 bar pressure. The valve stem on the
  pressure relief valve will rise up to a red mark indicating 45 psi.

• Start or stop spraying by squeezing or releasing the lever on the shut-off
  valve (3). The spray pressure can be monitored with an optional pressure
  gauge.

• Prior to every removal of pump (1), release pressure first by pulling up
  on the pressure relief valve stem (2).

3.3.4. Cleaning

• Carefully clean sprayer after every use.

• Soap and water may be used to clean tank.

• Clean the hose and spray tube by flushing with water.

• Follow the recommendations of the chemical manufacturer for
  disposing of waste water and chemicals.

• Do not use aggressive or abrasive cleaning agents.

3.3.5. Maintenance
 
• Prior to storage, clean and empty sprayer.

• Always store the sprayer in a dry area, protected from freezing, heat and sunlight.

• Lubricate O-ring in pressure relief valve with non-water soluble grease* on a regular basis. Disassembly: Unscrew pressure relief valve from tank and pull the valve body out of the screw cap. Clean and lubricate.

• Should pumping action become difficult, remove the pump from tank, remove pump piston (4) from pump cylinder (3) and grease the O-ring (5) of the pump piston with non-water soluble grease*. NOTE: once tank cap is removed, the pump handle "piston" and "cylinder" (pump body) are disassembled simply by pulling apart. See Figure 6, page 5.

• Use Solo original parts and see your Solo dealer in case of any problems. In the interest of technical progress, we reserve the right to change technical specifications without prior notice.

 

Pump Maintenance - NOTE: pump pressure sealing is accomplished with an O-ring (5) on the pump piston (4) which moves within the
cylinder (3). Periodically this O-ring should be greased with a
non-water soluble grease*. If worn, it should be replaced. A small
umbrella valve (7) at the bottom of cylinder prevents the formula from entering the cylinder. Keep these parts clean and replace if worn.

Tank Cap - a small amount of non-water soluble grease* on tank
cap threads and both sides of the gasket eases tightening and
loosening.
Regular Inspection - inspect and replace worn or damaged parts promptly. Pay particular attention to tank cap gasket, pressure
relief valve and seal, inflation valve (if fitted), umbrella valve O-rings and seals throughout sprayer. Regular lubrication of O-rings and seals is recommended.
3.3.6. Sprayer Uses
 
Plant Feeding and Protection - a variety of spray tips enables user to perform foliar feeding or to apply fungicides and pesticides effectively.

Herbicides - may be applied to reduce pesky weeds and plants;
however, avoid using same sprayer for plant feeding or protection.

Indoor Use - sprayers may be used to apply detergents, vinegar,
cleaning solutions, warm water (up to 120° F) and other non-toxic
household cleaners and maintenance liquids. Carpets, walls, glass, floors, ceilings and other surfaces can be treated. Do not use sprayer indoors which has previously been used with herbicides, pesticides or toxic chemicals.

Outdoor Use - window cleaner, detergent, general purpose cleaning solutions, certain wood preservatives, waxes, waterproofing and diluted household bleach (do not exceed 25% solution) are among the many things Solo sprayers can apply. Avoid using sprayer for cleaning and other applications once it has been used for plant protection or herbicide spraying.

*Solo Superior Grease or petroleum jelly work well.

3.3.7. Operating Features

 

Nozzles - Your Solo sprayer is standard with nozzle arrangements which provide a variety of spray patterns.

 

Item Pattern Application Part #
Flat spray nozzle Flat Row treatment 4074263
Jet stream nozzle Stream Spot & longer range 4074758
Jet stream nozzle and swirl plate Hollow Cone Shrubs & bushes 4074756 and   4074758
Plastic adjustable nozzle Variable Spot, shrubs
& bushes
4900527

3.3.8. Spray Tip Assembly
1. Flat spray nozzle
2. Filter
3. Jet cap
4. Swirl plate
5. Nozzle cap
6. Nozzle body
7. Brass adj. nozzle*
8. Nozzle retaining nut













  Flatspray    

Hollowcone
 spray

Brass
adjustable
nozzle

Jetstream

Plastic
adjustable nozzle



* Brass adjustable nozzle is not a standard item on all sprayers.
Spray tips should be assembled as above for desired spray pattern
3.3.9. Calibrating The Sprayer

The output of the sprayer should be checked by collecting and measuring the spray liquid emitted during one minute. Maintain steady pumping on the pump handle while measuring. Having determined the output from the nozzle in gallons/minute, the rate per unit area treated can be calculated knowing the swath width and walking speed.

Gal./acre = (Gal./min. of nozzle) x 43560 Sq. ft./acre
(Sq. ft./min.)

Note: Gal./min. for standard nozzles
Sq. ft./min.=Speed (ft./min.) x Swath Width (ft.)

1. Determine the nozzle's rated capacity. See page 6 of Solo parts list for nozzle ratings. Get the capacity in gallons/minute at the desired pressure. Test the delivery of the nozzle. Spray for one minute and collect the spray.

Gal./min. = oz. collected/minute
128 oz. = 1 gal.

2. Compute the area covered in square feet per minute. Select a comfortable walking speed and figure how many feet per minute you walk. A convenient fast walk for some is 2.5 mph, but this may vary. One mile per hour equals 88 feet per minute. An easy way to calculate is to simply measure the distance you walk in one minute.

3. Compute the gallons per acre. The above information is used to compute the gallons of spray that will be applied per acre.

3.4. Service and Repair
 
Note: Always wear rubber gloves, safety goggles and appropriate protective clothing when repairing a sprayer. Once a repair is completed, fill the unit with clean water, pressurize, and check for leaks. If the sprayer leaks, DO NOT USE. Repair leaks and re-check.
3.4.1. Service & Repair Video
Click Here to view a Service and Repair Video (Windows Media Player)
3.4.2. Troubleshooting Guide
PROBLEM CAUSE SOLUTION
Difficulty in moving
pump handle
• dirty cylinder wall • remove piston, clean and
  replace 
• O-ring on piston swollen
  (not cleaned properly)
• replace O-ring
• no lube on piston/cylinder • lubricate with heavy
  grease

Low pressure & resistance during pumping • damaged O-ring in  
  pressure relief valve
• replace O-ring
• worn or damaged O-ring
  on piston
• replace O-ring
• tank cap not tight • tighten cap
• no lube on piston cylinder • lubricate piston, O-ring and
  cylinder

Leaks from end of spray wand • worn or damaged O-ring
   in shut-off valve
• rebuild shut-off valve
Leaks from inside cylinder • worn or damaged umbrella
   valve at bottom of cylinder
• replace umbrella valve
Leaks under cap • damaged or missing gasket • replace gasket
  • screw cap not tight • tighten tank cap
Leaks from shut-off valve • worn, damaged or loose
  fittings, lack of lubrication
• tighten fittings and replace
  worn parts, disassemble and
   lubricate O-rings
Leaks from hose • worn, damaged or loose
  fittings
• tighten fittings and replace
  worn parts

Pressure relief valve sticks  • lack of lubrication or
   contaminated relief valve
   assembly
• clean and lubricate pressure
   relief valve

Air leak - air coming out between the two halves of the pump support • tank cap not tight • tighten tank cap
• gasket twisted or lacking
   lubrication
• straighten gasket and lubricate
  with grease
• tank lip damaged • repair or replace tank
3.4.3. Sprayer Repair
Sprayer Disassembly & Repair
1. If the sprayer will not hold pressure, fill the sprayer 3" below the top with water. Replace the cap and pump 4 times. Filling the sprayer this full makes it very easy to pump up to the maximum pressure. CAUTION: The bottom of the pressure relief valve is submerged and will discharge water under pressure. Dry off any water on the outside of the sprayer. (See Figure 1) If you observe water leaking out of the sprayer, check for damage at the site of the leak.

 


 Figure 1
2. If the leak is at a connection, try to tighten the screw cap. If that fails, remove the screw cap and check the sealing surface to make sure that it is flat, smooth and the seal or O-ring is undamaged. Retighten. (See Figure 2)

 


Figure 2
3. When reassembling the connections, especially the hose, make sure the O-ring is seated before hand-tightening the screw cap. (See Figure 3)



Figure 3
4. The pressure relief valve is removed by unscrewing it from the tank. Once removed, the lower housing pulls off to access the O-ring on the stem (A). When replacing this O-ring, make sure it is seated in the recess on the stem. Lubricate O-ring on stem before reassembly. (See Figure 4)

 


Figure 4
5.If the pump fails to offer resistance when pumping, check the umbrella valve (B) on the bottom of the cylinder to make sure that it is in place and sealing. The umbrella valve is removed by pulling it out. Replace the umbrella valve by re-inserting into the hole on the bottom of the cylinder. (See Figure 5)

 


Figure 5 
6.The pump piston is removed from the cylinder by pulling the two apart forcefully. Occasionally the large gasket at the top of the cylinder will hold the cylinder in the tank cap. Turning the cylinder counter-clockwise while holding the tank cap and pulling the cylinder will help separate the two parts. (See Figure 6)

 


Figure 6
7.To replace the O-ring on the plug (C), remove the plug by prying it out with a screwdriver. Replace the O-ring and lubricate. Reassemble by pushing the plug in until it is flush with bottom of the pump piston. The pump piston O-ring must be replaced if damaged or worn. Lubricate before reassembly. (See Figures 7 and 8)
Figure 7


Figure 8

 

8.To replace the pump piston, remove the cylinder supports by pushing them out of the tank cap. Once the pump piston is replaced, the cylinder support is snapped back into place. (See Figure 9) Note: this is not necessary for most repairs.

 


Figure 9
 9.When reassembling the pump cylinder to the pump piston and cap, make sure that the gasket (D) does not get twisted. This will cause the sprayer to leak. It is important to keep this gasket lubricated with non-water soluble grease or Solo Superior Grease (part #9850). Note: the cylinder is shown removed from the tank cap for clarity. To ease in the assembly, insert the cylinder into the neck of the sprayer tank and then screw the cap assembly on. (See Figure 10)

 


Figure 10
10.   Remove the shut-off valve from the hose. Remove and replace the O-ring on the hose connection. Reinstall the shut-off valve. (See Figure 11)
Figure 11
3.4.4. Shut-Off Valve Repair
 
The Shut-Of Valve Disassembly & Repair
1.Complete shut-off valve. (See Figure 12)
Figure 12


2. To remove valve core, you must first disassemble the handle. Remove the retaining pin (A) by squeezing the notched end and pushing through the handle. Slide the handle off the valve core. (See Figure 13)

 

 
Figure 13
3. With the handle removed, unscrew cap which retains tension spring and push out valve core (B). Replace worn parts. Lubricate the O-rings and reassemble in reverse order. Note: the valve core in picture is painted white for clarity.
Figure 14
3.4.5. Wand Tip Assembly Video
Click Here to view the wand tip assembly video (Windows Media Player)
3.5. Spare Parts Lists
 
3.5.1. 430-1G,430-2G & 430-3G Illustrated Handheld Sprayer Parts List

 430-1G,430-2G & 430-3G 
Illustrated Handheld Sprayer Parts List


Model 430 SprayerParts List - Order
Part numbers correspond with image above.
Click on order number to order desired part.

Pos. No. PartNo. Description
1 4900162 Pressure relief valve
 4800250 Pressure relief valve (2013 & later)
2 4073852 Tank Cap
3/4/5 4400115 Pump Assembly
4 4073839 Pump Ring
6 4074655 Screw Cap
8 0064406 Tube
9 4400116 Hose Assembly
10 4800170 Shut-off Valve
11 4074329 Lock Clip
12 0610402-K Shut-off Valve Repair Kit
13 4900230 Wand
14 4074527 Elbow
15 4074756 Swirl Plate
16 4074758 Jet Cap Nozzle
17 4074263 Flat Spray Nozzle
18 4900527 Plastic Adjustable Nozzle
19 4074148 Screw Cap
20 4074283 Filter
21 4074405 Slide
22 0094174 Carrying Strap
* 0610403-K Sprayer Repair Kit
25 4900430 Drift Guard
26 0065210 Brass Flat Spray Nozzle
** 0610410-P Brass Adjustable Nozzle
** 4900477 Double Nozzle
** 0610456-P Nozzle Assortment
**Not shown in breakdown
3.5.2. 454, 456, 457 Illustrated Handheld Parts List


Handheld Sprayer Parts List -Order

Part numbers correspond with image above.
Click on order number to order desired part.

Pos.
No.
OrderNo. ForModel

Description

1 4071262 456 Tank, 2gallon
- 4071267 454 Tank, 1gallon
4071263 457 Tank, 3gallon
2 4800185 Pressure relief valve assembly
3 0062166 * O-ring
4 0062258 * O-ring
5 4300245 Carrying Strap
6 4073835 Pump piston, solid
7 0062264 * O-ring
10 4073528 Tank cap, red
- 4073111 HD Tank cap, black
11 4074387 Cylinder support
- 4073834 Cylinder (use with0094308)
13 4061345 * Gasket
16 4900515 *** Pressure hose, assy.
17 4800170 Shut-off valve, assy.
18 4074295 Pin retaining
19 0062144 * O-ring
20 4900230 Wand Assy.(inc. 51& 52)
21 0062271 O-ring
21a  0062258 O-ring wand
22 4074527   Elbow
23 0094308 * Umbrella valve
24 4074283 Filter
25 0062106 O-ring
26 4074756 Swirl plate
27 4074758 Jet cap tip
28 4074148 Retaining nut
29 4074329 Lock clip
33 4074263 Flat spray nozzle
47 4074336 Retaining Nut
48 4074335 Lever
49 0610402-K Shut-off valve repair kit
52 4900527 Plastic adj.nozzle(inc. a & b)


Accessories

Pos.No. OrderNo. ForModel Description
- 4900405-K Pump repair kit
32 4073410 ** Flange
34 2700316 HD No dripcheck valve
41 0062249 O-ring
42 4074338 Retainingnut
44 4900430 Drift guard
45 4900622 Pressure gauge assy.
50 0062115 HD O-ring
53 0065210 HD Brass flat spray nozzle

* Pump repair kit

** Organicliquidspray kit
***Cutpick-up tube to fit for models 454 & 456

4. Air Blowers
4.1. Air Blower Operator's Manuals
4.2. Service Bulletins
4.3. Spare Parts Lists

414 Air Blower Spare PartsList (PDF)

440, 441  Air BlowerSpare Parts List (PDF)

445 Air Blower SpareParts List (PDF)

470 01, 470 02 AirBlower Spare Parts List (PDF)

471, 472 Air BlowerSpare Parts List (PDF)

 

4.3.1. 467 Spare Parts List 11-2010
4.4. Carburetor Repair Kits/Gasket Sets
Model   Carburetor      Carb. Brand
                                    & Model #        Repair Kit #    Gasket Set  #
 
414        2300747      Walbro WYJ128     0510922          0510923
 
449        2300558      Bing 1/15/27A         NLA 
             2300558       Bing 1/15/106        0510823 
             2300558       Bing 1/15/110        0510886 
             2300558      Bing 1/15111          0510887
 
445        2300819     Walbro WT537        0510975         0510949
             2300819     Walbro WT552        0510982         0510949
 
471/472  2300818     Bing 47B-101C        0510993         0510992
 
440/441  2300726     Walbro WT663
5. Chain Saws (Retired Product)

This product is no longer being manufactured.

Since SOLO products are BUILT TO LAST, we are continuing to provide parts lists and operator manuals.  We have a limited number of replacement parts. Please contact us to check availability. 


 

5.1. Service Bulletins
5.2. Chain Saw Operators Manuals
5.2.1. 665-681 Manual
5.2.2. 694
5.2.3. 651,656
5.2.4. 639,645,650
5.2.5. 637
5.2.6. 635,636,643
5.3. Spare Parts Lists

614 Chainsaw Spare Parts List (PDF)

622, 667, 667 SP Chainsaw Spare Parts List (PDF)

633 Chainsaw Spare Parts List (PDF)

636 Chainsaw Spare Parts List (PDF)

637 Chainsaw Spare Parts List (PDF)

639, 645, 650 Chainsaw Spare Parts List (PDF)

639, 645, 639 DECO Chainsaw Spare Parts List (PDF)

643 Chainsaw Spare Parts List (PDF)

644, 651, 651 SP Chainsaw Spare Parts List (PDF)

694 Chainsaw Spare Parts List (PDF)

 

5.3.1. 643-IP Spare Parts List 12-2010
5.3.2. 636 Spare Parts List 12-2010
5.3.3. 681 Spare Parts List 6-2008
5.3.4. 675 Spare Parts List 6-2008
5.3.5. 665 Spare Parts List 5-2007
5.3.6. 635 Spare Parts List 2-2002
5.3.7. 656 Spare Parts List 12-2006
5.4. Carburetor Repair Kits/Gasket Sets
Model     Carburetor    Carb. Brand & Model #    Repair Kit #    Gasket Set  #
 
631, 632, 638 
                2300523            Walbro HDC52            0510827       0510827
                2300523            Walbro HDA10            0510825       0510825
 
633, 640     2300138           Walbro WT577           0510984       0510985
                 2300812            Bing TYP 47A             0510931
 
634, 641   2300523              Walbro HDA10          0510825        0510888
                2300649             Bing 48C 104B           0510873        0510872
                2300660            Bing 48C 104D            0510873        0510872
                2300660            Walbro HDA111          0510825        0510888
 
635, 636    2300776            Walbro WT513           0510948        0510949
 
639, 645   2300704           Walbro HDA126          0510887         0510888
                2300709           Walbro HDA127          0510952         0510952
 
644, 651, 651-SP
               2300709          Walbro HDA127         0510952           0510952
 
647, 654   2300535          Tillotson HU63A         0510831 
                2300551          Walbro WT108          0510860           0510889
                2300551          Walbro WT42            0510860          0510889
 
662, 667   2300650          Bing 48A 706A           0510873          0510872
                2300673         Bing 48A 106B           0510873           0510872
                2300709         Walbro HDA57           0510866           0510888
                2300714         Walbo HDA130          0510866           0510888
                2300780         Walbro HDA158         0510866           0510888
 
670, 680   2300669          Walbro WJ3              0510858 
               2300669          Walbro WJ18             0510858 
               2300669          Walbro WJ32 WB      0510858 
 
690, 603   2300670          Walbro WJ12            0510858 
               2300670          Walbro WJ33A          0510858
 
694      024150030      Tillotson HS-295A          957150190     957150100     
6. Hedgetrimmers (Retired Product)

This product is no longer being manufactured.

Since SOLO products are BUILT TO LAST, we are continuing to provide parts lists and operator manuals.  We have a limited number of replacement parts. Please contact us to check availability. 

6.1. Spare Parts List

160, 161 Hedgetrimmer Spare Parts List (PDF)

 

6.2. Service Bulletins
7. Mist Blowers
7.1. Operator's Manuals
7.1.1. 450 Operator's Manual
7.1.2. 451 Operator's Manual
7.2. Spare Parts Lists

444 Mist Blower Spare Parts List (PDF)

450 Mist Blower Spare Parts Lis (PDF)

Port 423, Port 423 S Spare Parts List (PDF)

7.2.1. 451 Spare Parts List 11-2010
7.3. Carburetor Repair Kits/Gasket Sets
Model    Carburetor     Carb. Brand & Model #     Repair Kit #      Gasket Set  #
 
410         2300181            Bing 1/12/249                 0510816 
 
412, 412B
               2300555           Bing 1/15/105                 0510854 
               2300555           Bing 1/15/109                 0510885 
               2300728           Bing 1/151114                0510885 
 
419, 424, 426, 439, 436, 437 
               2300723           Bing 1/23/18                   0510819 
               2300723           Bing 1/23/19                   0510819 
               2300723           Bing 1/23/19A                 0510819
 
423          2300558           Bing 1/15/27A                   NLA 
               2300558           Bing 1/15/106                 0510823 
               2300558           Bing 1/15/110                 0510886 
               2300558           Bing 1/15111                  0510887
 
450         2300805           Walbro 537                                              0510949
              2300805           Walbro WT552                0510982            0510949  
8. Motorized Sprayers
8.1. Motorized Sprayer Operator's Manuals
8.2. Spare Parts List

432 Spare Parts List (PDF)

433 Mist Blower Spare Parts List (PDF)

8.3. 416 Backpack Battery Sprayer Spare Parts List
9. Trimmers/Brushcutters (Retired Products)

This product is no longer being manufactured.

Since SOLO products are BUILT TO LAST, we are continuing to provide parts lists and operator manuals.  We have a limited number of replacement parts. Please contact us to check availability. 

9.1. Operator's Manuals
9.1.1. 104-109 Operator's Manual
9.1.2. 142-154 Operator's Manual
9.2. Service Bulletins
9.3. Spare Parts Lists
9.3.1. 109 Spare Parts List 5-2011
9.3.2. 104 Spare Parts List 4-2009
9.3.2.1. 109 Spare Parts List 5-2011
9.3.3. 154 Spare Parts List 6-2006
9.3.4. 142 Spare Parts List 6-2006
9.3.5. 129 Spare Parts List 11-2006
9.3.6. 105, 106 Spare Parts List 7-2005
9.4. Carburetor Repair Kits/Gasket Sets - Part Numbers

Model     Carburetor    Carb. Brand & Model #       Repair Kit #    Gasket Set  #

119
            2300740            Walbro WT386         0510920         0510918
                  2300787            Walbro WT514         0510920         0510918
    
120, 124, 126, 128

                  2300674            Walbro WT218         0510801         0510889
    
127, 130    2300739            Walbro WT365A       0510919         0510918
    
134, 137, 140, 141

                  2300777            Walbro HDA155        0510887        0510888

10. Roto-tillers (Retired Products)
 

This product is no longer being manufactured.

Since SOLO products are BUILT TO LAST, we are continuing to provide parts lists and operator manuals.  We have a limited number of replacement parts. Please contact us to check availability. 

10.1. Spare Parts List

503 + 508 Edition 2001 Roto-tiller Spare Parts List (PDF)

504 Roto-tiller Spare Parts List (PDF)

11. Sicklebar Mowers (Retired Products)
 

This product is no longer being manufactured.

Since SOLO products are BUILT TO LAST, we are continuing to provide parts lists and operator manuals.  We have a limited number of replacement parts. Please contact us to check availability. 

11.1. Spare Parts List

530 Edition 2000/2001Spare Parts List (PDF)

531 Edition 2000/2001Spare Parts List (PDF)

532 Edition 2000/2001Spare Parts List (PDF)

12. Spreaders
12.1. Spare Parts List

421 Spare Parts List (PDF)

13. Strikemaster Ice Auger Engine Parts Lists
13.1. Service Bulletins
14. Warranty Info

 

   SERVICE

SUBJECT: Warranty

 

 

MODELS: All Solo Models

 

1.      Warranty Time Period and Coverage

 

  1. Consumer use –

Handheld Sprayers 456 & 430 series                              5 Years

                             LCS series                                       3 Years

                             ECS, CI, HD, 456F, 457F                  1 Year

Trimmers, Chain Saws and Air Blowers                         2 Years

Backpack Sprayers, Mistblowers, Spreader                     1 Year

One Hand Sprayer 418, 419                                           6 Months

                             415                                                  90 Days

  1. Commercial Use –

Chain Saws, Trimmers, Air Blowers                               2 Years

Backpack and Handheld Sprayers, Spreader                   1 Year

Mistblowers                                                                  1 Year

  1. Flexible shaft for trimmer models 105 and 106                 Lifetime
  2. The Limited Warranty extends to the original purchaser of Solo equipment and

Commences on the date of the original retail purchase. Proof of purchase is the

Owner’s responsibility.

       e.   Solo powered Strikemaster Ice Augers (engine only)     2 Years

2.      Warranty Claims

 

Warranty Claims may be submitted on several different forms:

                              Solo Warranty Claim Request

                              Outdoor Power Equipment Institute Universal Warranty Claim

                              Engine Service Association Claim

Warranty claims must be received within 60 days of the date of repair.

3.      Authorized Warranty Service Facilities

 

Warranty Service may be performed by:

                              Solo Dealer

                              Solo Distributor

                              Authorized Solo Service Center

                              Authorized Solo powered Strikemaster Ice Auger Dealer or Distributor

4.       Warranty Procedures

 

Solo’s warranty policy is to replace or repair the parts found defective in material or

Workmanship. Contact Solo before making repairs that exceed 50% of the

dealer cost of the equipment.

a.       In most instances warranty claims are handled with no questions regarding

Their validity. However, some requests are not justified.

b.       Excluded from warranty – normal wear and tear, incidental, indirect or

Consequential damages as outlined in the warranty disclaimer paragraph.

Cleaning and adjusting carburetors is not covered.

             c.    Suggestions:

1.       Inform customer of needed repairs that are not warranty before making

repairs.

2.       Make the repair; replace only parts necessary to accomplish a satisfactory

Repair. Claim only parts found to be defective in material or workmanship.

3.       Complete the claim form, being careful to include all requested information.

Don’t forget model/serial numbers.

5.      Parts Used for Warranty Claims

 

  1. The following parts are to be tagged and saved until warranty is approved – all

pistons, cylinders, electronic ignition components, crankshafts and carburetors.

When an unusual problem or failure occurs, return the affected parts.

  1. Warranty Labor – Warranty labor credits are calculated using Solo Flat Rate

Labor Manual which can be obtained from Solo distributors or Solo Inc.

6.      Items Not Covered by Warranty:

 

       a.   Any indirect or consequential damages that may result from the failure or malfunction of the Solo

            product. Some states do not allow the exclusion or limitation of incidental or consequential damages

            so these limitations may not apply to you.

       b.   Normal service requirements arising during the warranty period such as carburetor or ignition

            adjustment, cleaning, normal wear, lubrication, spark plugs, filters, starter ropes, etc.

  1. Normal service work over and above the repair or replacement of defective parts.
  2. Any failure that results from an accident, customer abuse, normal wear, neglect or failure to

            operate the product in accordance with the instructions provided in the Operator’s Manual or other

            literature provided with the product.

  1. Pre-delivery set-up time.
  2. Operation of an engine with an incorrect fuel/oil ratio, air filter removed or speeds in excess of Solo

            recommendations (if applicable).

      g.   When an alteration or modification has been performed on a Solo product, Solo is responsible only

            for product as originally furnished by Solo Incorporated, provided the alterations or modifications do

            not adversely affect the product’s operation, performance or durability.

      h.    Parts or accessories that are incompatible with the product or not approved by Solo.

7.      Owner’s Obligation and Responsibility:

 

a.       Maintain proof of purchase.

b.       Should any failure covered by this Limited Warranty occur, deliver or ship the Solo product or parts

            to the selling dealer.

c.       The owner, if any, will pay freight, packing and insurance costs.

d.       Follow normal maintenance service, recommended fuel mixture (where applicable), lubrication,

            Operation and storage of the product as explained in the Operator’s Manual.

8.      Warrantor’s Obligation and Responsibility:

 

      a.   Repair or replace any part of the product manufactured by Solo and covered by this warranty that

            is defective in material or workmanship without charge of the parts.

      b. Upon receipt of Solo product under warranty claims, the servicing agent will schedule the

            warranty service according to normal repair work schedule and availability of parts.

      c.   If the customer does not receive satisfactory service from the servicing agent, the customer may

            contact the warrantor.

      d.    Solo reserves the right to inspect the claimed defective part or parts to determine if the failure is the

            result of a defect covered by this warranty.

9.      Filing Warranty:

 

Warranty claims should be filed through your assigned distributor. Warranty payment will be issued in the form of credit from your distributor. In the instance that a distributor is not assigned, file directly with Solo.

      Warranty Coverage on Parts Not Manufactured by the Warrantor: Parts or components not manufactured by the warrantor are not covered by this warranty. The respective manufacturer reserves the right of evaluation and approval for parts replacement under their warranty policy. Solo does not assume any other obligations or liability in connection with its products other than stated above, nor does it authorize anyone else to do so.  There is no other express warranty. Implied Limited Warranties, including those of merchantability and fitness for a particular purpose, are limited to the warranty period and to the extent permitted by law; any and all implied warranties are excluded. This Limited Warranty gives you specific legal rights and you may also have other rights, which vary, from state to state.          

Solo’s Warranty Program is intended to maintain customer satisfaction. Your

Suggestions and observations are welcome.

Call, write or e-mail:                  Solo Incorporated

                                                Attn: Warranty Claims

                                                5100 Chestnut Avenue

                                                Newport News, VA   23605

                                                Phone: (757) 245-4228

                                                    Fax: (757) 245-0800

                                                E-mail: techserv@solousa.com  

                                                                                                                                          

15. Articles
15.1. Reducing silica exposure when operating a masonry saw

Reduce_Silica_Exposure.pdf