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HIGH PRESSURE WATER PUMPS
MAINTENANCE
FAILURE
REASON
CORRECTIVE ACTION
Water flow rate too small
Insufficient hydraulic flow
or pressure.
Adjust the hydraulic flow to the
demanded level at required
pressure.
Nozzle of your pressure
tool undersized.
Verify the nozzle sizing and
replace with proper one.
Pressure loss in delivery
hose.
Verify the hose sizing and replace
with proper one.
FAILURE
REASON
CORRECTIVE ACTION
Water pressure too low
Insufficient hydraulic flow
or pressure.
Adjust the hydraulic pressure to
the demanded level at required
hydraulic oil flow.
Pressure loss should be minimized
- Do not use hoses of too small
diameter or/and of an excessive
length.
Nozzle of pressure tool
oversized.
Verify the nozzle sizing and
replace with proper one.
Wear-out of nozzle.
Replace the nozzle.
Insufficient water supply.
Check and fix the problem.
Use pressurised water supply if
available.
Water pressure unloader
valve set too low (models
with water pressure
unloader valve).
Check and re-adjust to
specification.
FAILURE
REASON
CORRECTIVE ACTION
Intence pulsating of water
pressure.
Some of water intake and
pressure valves are open or
damaged.
Check water valves, clean
thoroughly or repair.
Water intake line breathes
causing pump cavitation.
Check water intake line and fix the
problem.
Water intake line’s diameter
to small, resulting in pump
cavitation.
Verify the hose sizing and replace
with proper one.
Excessive hydraulic flow,
when HPW-pump runs too
fast.
Adjust the hydraulic flow to the
demanded level.
Filter clogged or too small. Clean filter or replace filter of
correct size.
Summary of Contents for HPW 1000
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