User Manual Chapin 97701E 25 Sprayer Pump

• Owner's manual - (English, French)

User Gudie Chapin 97701E 25 Sprayer Pump

PRESSURE GAUGE & BALL VALVE ASSEMBLY

• Install pressure gauge (C-1) and ball valve (C-2) to output manifold as shown. Insert lead wire assembly into plug at rear of pump.
• Join red wire of the lead wire to a +12V source on the garden tractor. The black wire should be grounded or connected to the negative battery post

WAND TUBING TO MANIFOLD

• Install wand tubing (C-7) to manifold as shown using supplied hose clamp (C-3).

VALVE OPERATION

OPERATION

• The pumping system draws solution from the tank, through the strainer and to the pump.
• The pump forces the solution under pressure to the spray wand.
• The pump has a pressure switch which will shut the pump off when it reaches 60 PSI.
• Regularly inspect the suction supply screen on the inside of the tank. Flush with water to clear any accumulated debris.

BREAKDOWN & PARTS LIST

• Chapin Spot Sprayer Operator’s Manual - English

AFTER SPRAYING

• After use, fill the sprayer part way with water. Start the sprayer and allow clear water to be pumped through the plumbing system and out through the spray wand.
• Refill the tank about half full with plain water and use a chemical neutralizer and repeat cleaning instructions. Flush the entire sprayer with the neutralizing agent.
• Follow the chemical manufacturer’s disposal instructions of all wash or rinsing water.

WINTER STORAGE

• Drain all water and chemical out of sprayer, paying special attention to pump and valves.
• These items are especially prone to damage from chemicals and freezing weather.
• The sprayer should be winterized before storage by pumping a solution of RV antifreeze through the entire plumbing. Proper care and maintenance will prolong the life of the sprayer.

BREAKDOWN & PARTS LIST

TROUBLESHOOTING

Pump won’t start

• Correct voltage (12 - 13V) and electrical connections
• Fuse or breaker
• Pressure switch operation
• Rectifer or motor for open or grounded circuit Locked drive assembly Correct voltage at switch

Pump will not prime (No discharge with motor running)

• Debris in strainer
• Restriction (kinks) in inlet / outlet tubes
• Debris / swelling in inlet / outlet valves

Pump will not shut-off (output line closed and no leaks)

• Air trapped in outlet line or pump head
• Correct voltage to pump
• Debris in pump inlet / outlet valves
• Loose drive assembly or pump head screws
• Pressure switch operations / adjustments

Leaks from pump head or switch

• Loose screws at switch or pump head
• Switch diaphragm ruptured or pinched
• Punctured diaphragm if fluid is present

Pump makes noise, but no output

• Prime with garden hose by removing intake hose and flood with water while pump is running until water starts flowing (this may take up to 15 minutes to create suction).
• To better understand the priming process see video at: or search “Priming the Pump on Your
• Chapin ATV Sprayer” at Chapin International’s YouTube page

What is the optimal operating pressure?

• PSI - This can be accomplished by turning on the pump and adjusting the bypass valve until the gauge reads 40 PSI (or slightly higher). The pump will run continuously.
• Ensure that the boom and/or handgun is not spraying while you set the pressure. The pressure will drop slightly when the boom and/or handgun is operated.

What pressure should the pressure gauge read?

• Please refer to the operation instructions for boom operating pressures, varying boom pressures can be achieved by regulating or adjusting the by-pass valve. Typically the spray wand will be operated between 20 and 40 PSI.

My pump quit and will not restart - what should I check?

• Check all electrical connections. Ensure switch is in the on position. Check in-line fuse and/or fuse in car adapter end. Ensure correct voltage +/- 10%. 12-13 volt

Low flow or no flow at all - what should I check?

• Check for a clogged suction hose and/or suction strainer. Often you will need to clean the suction strainer. Check for proper voltage.

How should I clean the tank after use?

• Rinse tank thoroughly with water only, empty, refill with water.
• Empty sprayer by spraying no less than 1 minute to rinse out line. The remaining water can be drained per the drain plug.
• Store sprayer tank upside down, in a warm dry location.

Can the spray tip on the wand be replaced with a different type of tip?

• Yes, however your wand comes with a #18 tip which is standard. Brass tips generally produce better spray patterns than plastic.
• Each time I turn on the pump my fuse blows.
• Excessive voltage
• Improper adjustment of the pressure switch
• Damaged wiring harness.
• Pump continues to run and surge when not spraying.
• Ensure your system has no leaks. Check by-pass valve to ensure it’s not letting too much fluid to bypass. If too much fluid is bypassed, the system is unable to build enough pressure to shut-off.