Troubleshooting - North Star M2827271A 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 55 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
2. Review

troubleshooting

table
3. Empty and flush
4. Disconnect
power/relieve
pressure
5. Perform repairs
6. Test after
servicing
PROBLEM
Engine will not start
Low pressure
Low flow
Poor spray distribution
Pump is locked up
Troubleshooting
WARNING
Wear personal protective equipment as directed on the chemical label while
servicing your sprayer.
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.
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.
Stop the engine and be sure all system pressure is relieved by operating the
spray gun.
Follow the directions provided in the troubleshooting table to repair the
sprayer.
NOTE: Never try to unclog the sprayer nozzle by blowing through it.
After servicing, ALWAYS test the sprayer for leaks with plain water before
using.
CAUSE
Engine will not start
Agitation not tuned properly
Pressure regulator not adjusted
Worn spray gun nozzle
Worn broadcast nozzles
Suction line ball valve closed
Agitation valve is open
Agitation not tuned properly
Strainer clogged
Clogged suction line
Worn spray gun nozzle
Worn broadcast nozzles
Chemicals left in the pump
SOLUTION
See engine owner's manual
Tune agitator with desired agitator tip
Adjust pressure regulator
Replace spray gun nozzle
Replace broadcast nozzles
Open suction line ball valve
Close agitation valve
Tune agitator with desired agitator tip
Remove strainer and clean
Remove obstruction
Replace spray gun nozzle
Replace broadcast nozzles
Send pump to service center
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