BX • 8.914-441.0 • Rev. 05/11
11
PRESSURE
W
ASHER
T
roub
leshooting Guide
PROBLEM
POSSIBLE CAUSE
SOLUTION
LOW OPERATING
PRESSURE
Insuffi cient water supply. Closed
faucet
Use larger garden 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. Re-tape
leaks with tefl on tape.
Faulty or mis-adjusted unloader
valve
Adjust unloader for proper pressure. Install
repair kit when needed. Contact local dealer.
Worn packing in pump
Replace packing.
Machine has been stored in
freezing temperatures
Thaw out machine completely, including hose,
spray gun and wand.
Slow engine RPM
Contact local dealer.
FLUCTUATING
PRESSURE
Worn pump valves
Replace valves.
Dirt in pump valves
Clean and inspect valves.
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, Contact local
dealer.
PRESSURE
INCREASES WHEN
SPRAY GUN IS
CLOSED
Unloader valve not operating
properly
Contact local dealer.
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
Replace packings and oil seals.
TROUBLESHOOTING
