Product Manual

Shark
®
Jetters OPERATOR’S MANUAL
18
SJPE-1500 • 8.914-323.0 • REV. 7/12
TROUBLESHOOTING
These troubleshooting procedures cover pump malfunctions, delivery problems and charge system malfunction.
Warning: Before attempting any repairs or maintenance, make sure machine is shut off.
PROBLEM POSSIBLE CAUSE REPAIR
LOW PRESSURE
Worn or oversized nozzle Replace worn nozzle. Check nozzle size.
Clogged water and/or detergent inlet
strainer
Clean or replace strainers.
Worn or damaged piston cups Replace piston cups.
Worn or damaged inlet or discharge valve Replace worn valve poppets or valve springs.
Dirt or foreign particles in valve assembly Remove any dirt particles.
Air leak in inlet plumbing Locate air leak. Re-seal connection or replace
damaged port.
ROUGH OPERATION
WITH LOSS OF
PRESSURE
Restricted inlet plumbing or air leak in
inlet plumbing
Repair clogged inlet fittings. Check supply
hose and ensure adequate water supply.
Damaged piston, cup or pump valve Replace any damaged pump parts and clean
out any foreign particles.
Clogged nozzles Clean or replace nozzles.
WATER LEAKAGE
AT INTAKE
MANIFOLD OR
CRANKCASE
Worn manifold seals, pistons or O-rings,
or condensation inside crankcase
Replace seals, sleeves or O-rings. Change oil
at regular intervals.
Inadequate water supply to pump creating
a vacuum lock
Ensure adequate tap water supply. Clear inlet
filter.
OIL LEAKS
Worn pistons and/or leaking crank seals,
crankcase cover seal or drain plugs
Replace seals, sleeves or O-Rings.
EXCESSIVE WEAR
Worn or loose bearings Replace bearings. Check bearing seals, spac-
ers and retainers. Replace any worn parts.
SHORT PISTON
CUP LIFE
Scored cylinders from pumping acids Replace cylinders. DO NOT PUMP ACID
SOLUTIONS. For acid application, ask your
dealer for a Pump Saver Injector.
Abrasive particles in fluid being pumped Replace water and detergent strainers if dam-
aged or missing. Install additional filter if fine
abrasives are still evident.
Operator(s) running pump without water
supply
DO NOT ALLOW WASHER TO BE RUN
WITHOUTPROPERWATERSUPPLY.
Hot water in pump Do not run in bypass for more than 5 minutes.
Do not let water supply exceed 140
o
F (60
o
C).
IRREGULAR SPRAY
PATTERN
Worn or partially clogged nozzle Clean or replace nozzles.