Specifications

DG SERIES PRESSURE WASHER OPERATOR’S MANUAL
13
TROUBLESHOOTING
Shark DG • Rev. 8/02
PROBLEM POSSIBLE CAUSE SOLUTION
LOW OPERATING
PRESSURE
Insufficient water supply Use larger supply hose; clean inlet water
screen. Open faucet.
Old, worn or incorrect spray nozzle Match nozzle number to machine and/or
replace with new nozzle.
Plumbing or hose leak Check plumbing system for leaks. Retape
leaks with teflon tape.
Faulty or misadjusted unloader valve Adjust unloader for proper pressure. Install
repair kit when needed. Call Shark technical
support.
Worn packing in pump Call Shark technical support.
Machine has been stored in freezing
temperatures
Thaw out machine completely, including
hose, spray gun and wand.
Slow engine RPM Call Shark technical support
FLUCTUATING
PRESSURE
Worn pump valves Call Shark technical support.
Dirt in pump valves Call Shark technical support.
Pump sucking air Check all pump lines and connections.
PRESSURE LOW
AFTER PERIOD OF
NORMAL USE
Nozzle worn Replace nozzle.
Unloader valve worn Replace unloader valve.
ENGINE WILL NOT
START OR STOPS
WHILE OPERATING
Low oil shutdown Fill engine with oil.
ENGINE IS
OVERLOADED
Nozzle partially blocked Clean nozzle.
Excessive pressure from high engine
RPM
Adjust engine throttle to lower RPM.
WATER OR OIL
LEAKING FROM
BOTTOM OF PUMP
A small amount of leaking is normal If excessive leaking occurs, call Shark
technical support.
PRESSURE
INCREASES WHEN
SPRAY GUN IS
CLOSED
Unloader valve not operating
properly
Call Shark technical service.
PRESENCE OF
WATER IN PUMP
OIL
Water sprayed at machine Change oil. Direct spray away from machine.
High humidity in air Check and change oil twice as often.
Piston packing worn. Oil seal worn Call Shark technical support.