Hotsy HWE-4020C, Руководство оператора

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20
Maintenance
Troubleshooting
PROBLEM POSSIBLE CAUSE SOLUTION
OIL SQUIRTS
OUT OF OIL
CAP ON PUMP
Pump overfilled with oil
Maintain oil level at red dot on sight glass at
rear of pump or at top of notch on dipstick
(where applicable).
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 Power, water, auto switch
not on
Check and turn on.
Motor overload tripped Check and reset.
Control fuse blown (2 or 3 amp) Check and replace.
Pressure switch faulty Check, clean or replace.
Timer faulty Check and replace.
SYSTEM WILL
NOT STOP Water leak in discharge line Repair water leak.
Pressure switch faulty
Disconnect at timer. If unit stops, replace
pressure switch.
Timer resistor faulty Replace timer.
SYSTEM STOPS AFTER
APPROXIMATELY
10 SECONDS AND
THEN RESTARTS
Faulty pressure switch Check and replace.
Leak in system Fix leak.
WATER IS
NOT HOT Tank water low Check for leaks and fill.
Temperature or level controls
faulty
Check and replace.
MOTOR ”HUMS”
BUT DOES
NOT TURN
Electric motor single phasing
Check for blown fuse or loose power line
connections.
PUMP RUNNING
NORMALLY
BUT LOW
WATER PRESSURE
Air leak in inlet
Check water supply and possibility
of air entering water connections.
Faulty pressure unloader
Bypass pressure unloader by wiring spray
gun open. If good PSI, turn
machine off and replace regulator. DO NOT
RELEASE SPRAY GUN WHILE
BYPASSING UNLOADER.
Hotsy HWE Operator’s Manual 8.941-225.0 - Y