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Troubleshooting
31
WARNING
Before troubleshooting or attempting to service, read the following safety rules to
avoid accidental exposure to chemical and also risk of electric shock.
Note: A reserve, clean container capable of holding at least 16 gallons should be kept for use when the
sprayer tank needs to be emptied temporarily for repairs. It is advisable to purchase a reserve tank
suitable for pesticide storage from Northern Tool and Equipment for use in these circumstances. The
container should be properly labeled as to its contents if it is used.
Before attempting to service the sprayer:
1. Personal
protective
equipment
Wear personal protective e quipment as dire cted on the chemical label while
servicing your sprayer.
2. Review
troubleshooting
table
Review the Troubleshooting Table below for the type of problem you are
experiencing. However, DO NOT attempt to repair until the steps listed below
are followed.
3. Empty and flush If the cause listed for your problem is Clogged intake tube, Clogged suction
strainer, or Worn spray gun nozzle: empty the tank and flush the sprayer with
water as directed in the section, “Operation – Step Four”.
- In order to avoid accidental exposure to chemicals, never attempt to
unclog the intake tube or suction strainer, or service the spray gun nozzle,
until the tank has been emptied and the sprayer flushed with water.
4. Disconnect
power/relieve
pressure
Dis conne ct power to the spraye r an d be su re all system pressure i s relie ve d
by squeezing the gun trigger.
5. Perform repairs Follow the directions provided in the troubleshooting table to repair the
sprayer.
NOTE: Never try to unclog the sprayer nozzle by blowing through it.
6. Test after
servicing
Afte r se rvicin g, ALWAYS test the spraye r for leaks with pl ain water before
using.
PROBLEM CAUSE SOLUTION
Bad electrical connection Check battery connections.
Short in wires Check condition of wires.
Pump will not turn on
Motor hooked to battery
incorrectly
Ensure red wire is connected to positive
battery terminal. If not, correct wiring,
then remove pump head and tighten
offset bearing.
Worn spray gun nozzle Replace spray gun.
Low pressure
Improper pressure adjustment T ighten pressure adjustment knob.
Clogged intake tube Remove obstruction.
Clogged suction strainer Clean suction strainer.
Obstruction in inlet/outlet valves Clean inlet/outlet valves.
Low flow
Leak in the system Tighten leaking hose clamps or fittings.