Chapin 20000 Garden Sprayer User Manual

Safety Warnings

Hazard: Improper Use

Improper use or failure to follow instructions can result in explosive failure causing serious eye or other injury. Always read and follow all instructions. Do not leave a pressurized sprayer in the hot sun. Heat can cause pressure build-up. Do not store or leave solution in tank after use. Always wear goggles, gloves, long sleeve shirt, long pants, and full foot protection when spraying. Never use any tool to remove the pump if there is pressure in the sprayer. Never stand with face or body over the top of the tank when pumping or loosening the pump to prevent ejecting the pump assembly and/or solution from striking and injuring you. Never pressurize the sprayer by any means other than the original pump. Do not attempt to modify or repair this product except with original manufacturer's parts. Never spray flammable materials or heat, pressure, or gas-producing chemicals. Always read and follow manufacturer's instructions before use with this sprayer as some chemicals may be hazardous when used with this sprayer.

Lead Exposure Warning

Handling the brass parts of this product will expose you to lead, a chemical known to the State of California to cause birth defects and other reproductive harm. Wash hands after handling.

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Parts, Piezas, Pièces

• 6-7749 Extension wand (poly) / Vara de extensión / Rallonge
• 6-2001 Hose Kit: 2 nuts, 2 barbs and hose / Juego de manguera: 2 tuercas, 2 lengüetas y manguera / Nécessaire de tuyau: Deux écrous, deux ardillons et tuyau
• 6-7756 Extension wand (brass) / Vara de extensión / Lance de rallonge
• 6-8156 Relief Valve / Válvula de descarga de presión / Soupape de décompression
• 010842 Tool Holder / Soporte para la herramienta / Porte-outils
• 6-2000 Shut-off Handle / Mango de cierre / Poignée du robinet
• 301120-4 Fan Nozzle (brass tip) / Boquilla / Buse
• 301272-1 Nozzle (brass tip) / Boquilla / Buse
• 6-4566 Four Position Nozzle / Boquilla de 4 posiciones / Buse à 4 positions
• 6-6003 Nozzle / Boquilla / Buse
• 6-4645 Relief Valve / Válvula de descarga de presión / Soupape de décompression
• 6-3337 Straps / Tirantes / Sangles
• 6-5385 Spray Shield / Pantalla de pulverización / Bouclier de pulvérisation
• 6-5364 Measure Cup / Taza para medir / Tasse à mesurer
• 3-4843 Fan Nozzle Pack / Paquete de boquilla a chorro / Ensamble de buse à jet éventail

Note: Your particular sprayer may not include all parts pictured above.

Repair Parts Kit Gaskets and Seals (not included)

1. Hose to Tank

Warning: To prevent hose from blowing off, hose must cover both barbs on the outlet tube adapter and touch flange (Fig. 1B) before hose nut is securely tightened (Fig. 1C).

Ensure the tool holder is assembled to the tank adapter before mounting the discharge assembly (Fig. 1A). The Tool Holder snaps into the groove of the tank adapter. Figure 1D shows how the shield and cup are mounted (Not all models are provided with tool holder, spray shield and measuring cup).

Insert the outlet tube portion of the discharge assembly into the tank adapter (Fig. 1A). Firmly insert the outlet tube portion into the tank adapter (Fig. 1B) leaving no gap between the tank adapter and outlet tube adapter. Firmly tighten the retaining nut to the tank adapter (Fig. 1C).

2. Nozzle / Extension Wand

Attach nozzle to shut-off handle or extension wand per Fig. 2A-2D depending on the style of extension wand included with sprayer.

Deck Sprayers Only: Insert nozzle into cap (2E). Attach cap to shut-off handle or extension wand (Fig. 2F-2G).

Spray Patterns: Red: Fine spray for finer washes; Blue: Medium spray for sealers; Yellow: Course spray for semi-transparent stains.

3. Filter

The filter helps prevent clogging while spraying. It is located on the end of the outlet tube inside your sprayer tank. To clean filter, remove the discharge assembly from the tank (Fig. 1A). Make sure the filter is positioned at the bottom of the tank as pictured (Fig. 3A).

Note: Filters are not supplied with deck sprayers.

4. Shield Attachment to Wand

Snap shield onto wand as shown (Fig. 4A). Using the spray shield will help protect your plants etc. from over spray. (Not all models are provided with spray shield).

5. Pre-Use Check

1. Check tightness of hose nut to be sure hose is securely attached to the tank outlet.
2. Inspect hose for deterioration, cracks, softness, or brittleness. If any of these conditions are found, replace hose before using. Replace with original manufacturer's parts only.
3. Remove pump (see Filling, Pressurizing and Spraying Instructions), inspect interior and exterior of tank for signs of deterioration of body and bottom. Any sign of deterioration indicates possible tank weakening and could result in explosive bursting under pressure. If any of these signs are found, discard tank immediately and replace. Do not attempt to patch leaks, etc., as this could result in serious injury.
4. Follow Filling, Pressurizing and Spraying Instructions, except use water only (Pump plunger 10-20 strokes and inspect for leaks).
5. Direct shut-off away from you and open to make sure discharge is not clogged.
6. If unit passes this test, release pressure (see Pressure Releasing Instructions), empty tank, and proceed with Filling, Pressurizing and Spraying Instructions.

6. Filling

1. Turn pump handle counterclockwise and remove pump.
2. Prepare spray solution following all directions and safety warnings on chemical label.
3. Fill tank to no more than the proper gallon marker. Do NOT overfill to accommodate pump.
4. Check pump to make sure that no grass or dirt is stuck to barrel. Replace pump in tank and tighten securely.

7. Pressurizing and Spraying

To Pressurize: Turn handle clockwise to tighten. Push handle down, turn 1/4 turn counterclockwise to release. Pump until you feel resistance (Fig. 7A, 7B). Push handle down, turn 1/4 turn clockwise to lock. Begin spraying. Re-pump sprayer as required to maintain spray force (Fig. 7C).

To Adjust Spray: Turn end of nozzle to adjust spray pattern (Fig. 7D).

8. To Release Pressure

Sprayers with no pressure release valve: With pump facing away, turn locked handle counterclockwise until air begins to escape. Stop turning handle when you hear air escaping. Point pump away until all air has escaped.

Sprayers with pressure release/relief valve: Lift and hold the cap OR, turn the valve slowly counterclockwise until air is completely exhausted (Fig. 8A). Pull up stem until air is completely exhausted (Fig. 8B). Point valve away from you when releasing pressure.

9. Care, Storage and Maintenance

1. Rinse tank thoroughly with water only, empty, refill with water. Follow Filling, Pressurizing and Spraying Instructions, except pump unit only 8-10 strokes.
2. Open shut-off and allow water to run through discharge assembly.
3. Release pressure (Follow Pressure Release Instructions), remove pump and empty sprayer.
4. Store sprayer tank upside down, with pump removed, in a warm dry location.
5. Periodically oil pump by dropping 10-12 drops of light oil down pump rod through opening in cover.

10. Fatigue-Free Spraying

For constant spraying, push down on shut-off handle and move grey locking mechanism away from you. To release, squeeze handle and move the grey locking mechanism back towards you. (Not all models are provided with this feature).

11. Troubleshooting

Tank pressurizes but does not spray.

Warning: Release pressure in tank before troubleshooting.

Clean shut-off (Fig. 11A-11D):

Pull handle straight up (Fig. 11A). Insert notches from underside of handle into plunger grooves and turn counterclockwise (Fig. 11B). Remove plunger and diaphragm. Clean plunger, diaphragm and body. Flip diaphragm and replace (Fig. 11C). Tighten plunger clockwise until flush to top of shut-off body. Do not over-tighten or unit may not spray. Slide forks under plunger, push handle down until it snaps into place (Fig. 11D).

Clean Nozzle Assembly (Fig. 11E):

Remove nozzle cap. Clean and re-assemble.

Chapin Manufacturing, Inc.

P.O. Box 549, 700 Ellicott St. Batavia, NY 14021-0549 U.S.A.

The Way to Spray Since 1884

Phone: 1-800-950-4458

Website: www.chapinmfg.com