Product Manual

Troubleshooting
30
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 10 gallons for 99918, 16 gallons for
99919, 26 gallons for 99920 and 99921 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 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 equipment as directed 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
Empty the tank and flush the sprayer with water as directed in
the section, “Operation – Step 4.”
- In order to avoid accidental exposure to chemicals, never attempt
to service the sprayer until the tank has been emptied and the
sprayer flushed with water.
4. Disconnect
power/relieve
pressure
Disconnect power to the sprayer and be sure all system pressure
is relieved 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
After servicing, ALWAYS test the sprayer for leaks with plain
water before using.
PROBLEM
CAUSE
SOLUTION
Pump will not turn on
Bad electrical connection
Check battery connections
Short in wires
Check condition of wires
Low voltage
Check voltage
Low pressure
Worn spray gun nozzle
Replace spray gun
Low flow
Clogged intake tube
Remove obstruction
Clogged suction strainer
Clean suction strainer
Low voltage
Check voltage
Poor spray distribution
Clogged intake tube
Remove obstruction
Suction strainer clogged
Clean suction strainer
Worn spray gun nozzle
Replace spray gun
Pump cycles while not
spraying
Leak in the system
Tighten leaking hose clamps or fittings,
replace spray gun