Troubleshooting - North Star M268180M Owner's Manual

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. In addition, it may be advisable to
empty the tank contents using a transfer pump if the tank drain hole is inaccessible while the sprayer
is mounted on the ATV.
Before attempting to service the sprayer:
1. Personal
prote ctive
e quipment
2. Re vie w
trouble shooting
table
3. Empty and flush
4. Disconne ct
powe r/relie ve
pressure
5. Perform re pairs
6. Te st afte r
se rvicing
PROBLEM
Pump will not turn on
Low pressure
Low flow

Troubleshooting

WARNING
Wear pe rsonal prote ctive e quipment as dire cte d on the chemical label while
se rvicing your spraye r.
Re vie w the Trouble shooting Table below for the type of problem you are
expe riencing. However, DO NOT attempt to repair until the steps listed below
are followed.
If the cause liste d for your problem is Clogge d intake tube, Clogge d 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.
Disconne ct power to the spraye r and be sure all system pressure is relie ve d
by squeezing the gun trigge r.
Follow the dire ctions provide d in the troubleshooting table to re pair the
spraye r.
NOTE: Never try to unclog the sprayer nozzle by blowing through it.
Afte r se rvicing, ALWAYS test the spraye r for leaks with plain water be fore
using.
CAUSE
Bad electrical connection
Short in wires
Motor hooked to battery
incorrectly
Worn spray gun nozzle
Improper pressure adjustment
Clogged intake tube
Clogged suction strainer
Obstruction in inlet/outlet valves
Leak in the system
SOLUTION
Check battery connections
Check condition of wires
Ensure red wire is connected to
positive battery terminal. If not,
correct wiring, then remove pump
head and tighten offset bearing.
Replace spray gun
T ighten pressure adjustment knob.
Remove obstruction
Clean suction strainer
Clean inlet/outlet valves
T ighten leaking hose clamps/fittings
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