HPW TROUBLESHOOTING
1.1
HPW-PUMP DOES NOT
WORK
1.1.1
Too small hydraulic flow or
no hydraulic flow at all.
1.1.2
Hydraulic pressure too low.
1.1.3
Hydraulic flow reversed.
1.1.4
Hydraulic piston damaged
mechanically.
1.1.1
Enable or adjust the hydraulic flow.
1.1.2
Adjust the hydraulic pressure.
1.1.3
Check and reconnect hydraulic hoses. Pressure
hose should be connected to P-port and return
hose to T-port.
1.1.4
Replace damaged part.
1.2
HPW-PUMP WORKS,
BUT DOES NOT
DELIVER WATER
FLOW.
Models with water
pressure unloader
valve
.
1.2.1
Water intake and pressure
valves are open (jammed
with debris) or damaged.
1.2.2
Regulator’s unloader valve
opens from intake to
pressure.
1.2.1
Check water valves and clean them thoroughly
or replace when damaged.
1.2.2
Check the valve and repair failure.
1.3
HPW-PUMP DOES NOT
RECEIVE PUMPING
FLUID
1.3.1
Intake hose detached or
hose breathes.
1.3.2
Water supply line clogged.
1.3.3
Suction head to high.
1.3.1
Check and fix the hose and connectors.
1.3.2
Check strainer or water filter and clean
thoroughly.
1.3.3
Check the performance with pressurized
water supply when possible.
1.4
WATER PRESSURE
LINE BLOCKED.
Models with water
pressure unloader
valve.
1.4.1
Nozzle clogged.
1.4.2
Regulator’s check valve
damaged, pressure line
blocked.
1.4.1
Check the nozzle and clean thoroughly.
1.4.2
Check the valve and repair failure.
1.
HPW-PUMP DOES NOT PRODUCE WATER FLOW
MAY CHANGE WITHOUT PRIOR NOTICE
High pressure pump HPW 200/30-45-ST
20/26
May 2012