19
Maintenance
PROBLEM
POSSIBLE CAUSE
SOLUTION
MOTOR STRAINS
UNDER LOAD
(CONTINUED FROM
PREVIOUS PAGE)
Obstruction In Spray Nozzle
Remove Obstruction.
Mis-adjusted Unloader Valve
Call Local Dealer.
Pump Low Or Out Of Oil
Check Oil Level.
OIL SQUIRTS
OUT OF OIL
CAP ON PUMP
Pump Over Filled With Oil
Maintain Oil Level Halfway Up On The Sight
Glass At Rear Of Pump Or At Top Of Notch On
Dipstick (Where Applicable).
PUMP
RUNNING
NORMALLY
BUT PRESSURE
OUTPUT LOW
Pump Sucking Air
Check Water Supply And Possibility Of Air
Seepage.
Valves Sticking
Check And Clean Or Replace If Necessary.
Unloader Valve Seat Faulty
Check And Replace If Necessary.
Nozzle Incorrectly Sized
Check And Replace If Necessary
(See Serial Plate For Proper Size).
Worn Piston Packing
Check And Replace If Necessary.
WATER DRIPPING FROM
UNDER
PUMP
Piston Packing Worn
Check And Replace If Necessary.
O-ring Plunger Retainer Worn
Check And Replace If Necessary.
Cracked Piston
Check And Replace If Necessary.
OIL DRIPPING
Oil Seal Worn
Check And Replace If Necessary.
EXCESSIVE
VIBRATION IN
DELIVERY LINE
Irregular Functioning Of The Valves
Check And Replace If Necessary.
SYSTEM
WILL NOT
START
Motor Overload Tripped
Check And Reset.
Pressure Switch Faulty (Time Delay
Only)
Check, Clean Or Replace.
MOTOR “HUMS” BUT
DOES NOT TURN
Electric Motor Single Phasing
Check For Blown Fuse Or Loose Power Line.
Capacitor Bad 1ph
Have Motor Serviced.
PRESSURE WASHER
WILL NOT RUN
Pump Switch In Off Position
Place Switch In On Position.
Power Supply Disconnected
Connect Power Supply.
Fuse Blown Or Circuit Breaker
Tripped In Electrical Supply Line.
Replace Fuse Or Reset Circuit Breaker.
Use Only Circuits Of Adequate Capacity.
Motor Circuit Overload Tripped
Allow Sufficient Time For Motor To Cool Down.
Place Pump Switch In On Position.
PRESSURE WASHER
RUNS BUT WONT
SPRAY
Trigger On Trigger Gun Released
Squeeze Trigger.
Water Supply Not Turned On
Open Water Supply Valve.
Clogged Pressure Nozzle
Clean Pressure Nozzle Opening.
Inlet Water Screen Clogged
Check Screen And Clean If Necessary.
Pump Sucking Air
Fill The Detergent Container And Check For
Loose Hose Clamps Or Fittings.
UNEVEN SPRAY
PATTERN
Partially clogged or damaged
pressure nozzle
Clean or replace.
HOTSY • CWC OPERATOR’S MANUAL • 9.801-695.0-B
