19
Maintenance
PROBLEM
POSSIBLE CAUSE
SOLUTION
PUMP MOTOR
RUNS BUT
NO WATER
IS DELIVERED
Air leaks
Check all connections on suction line and shaft seal.
Water level below suction of pump
Fill tank with water.
Jet or impeller is plugged
Clean jet or impeller, see Maintenance.
Pump outlet strainer plugged
Clean or remove sludge from strainer.
Hoses are frozen
Thaw out hoses.
SPRAY ARM WON'T
SPIN
Low water temperature
Allow water to heat to operating temperature.
Spin pins out of alignment
Re-align spin pins.
PUMP STARTS AND
STOPS
TOO OFTEN
Low line voltage
If voltage under recommended minimum, check size
of wiring from main switch to
parts washer. If OK, contact power company.
Clogged impeller
Remove housing, unclog.
Faulty motor overload protector
Replace overload.
PUMP OPERATING
BUT DELIVERS
LITTLE OR
NO WATER
Low line voltage
If voltage under recommended minimum,
check size of wiring from main switch to
parts washer. If OK, contact power company.
Worn or defective pump parts or
plugged impeller
Replace worn parts or entire pump. Clean parts if
required.
Spray bar nozzles plugged
Clean or replace.
IMPELLER
Impeller is loose on shaft
Tighten impeller set screw.
Impeller rubs housing
Realign impeller.
Impeller wobbles or is damaged
Replace impeller
Pump motor rotation is in the wrong
direction
Change rotation by following the wiring diagram on
the motor and changing wires to change rotation.
VOLTAGE
LIGHT FAILS
TO COME ON
No power to parts washer
Check circuit breaker supplying power to washer.
Fuse blown on transformer
Replace fuse.
Transformer defective
Replace transformer
Cuda SJ-15 Series Operator’s Manual 9.801-128.0 - V
