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Dynaset Oy | Menotie 3, FI-33470 Ylöjärvi, Finland | tel: +358 3 3488 200 | [email protected] | www.dynaset.com
HIGH PRESSURE WATER PUMPS
MAINTENANCE
6.7. TROUBLESHOOTING
Performing the maintenance tasks requires a qualified hydraulic mechanic. Please,
contact DYNASET authorized workshop or dealer for more maintenance informa-
tion.
FAILURE
REASON
CORRECTIVE ACTION
HPW pump does not work.
Hydraulic flow not
sufficient or no hydraulic
flow at all.
Enable or adjust the hydraulic
flow.
Hydraulic pressure too low. Adjust the hydraulic pressure.
Hydraulic flow reversed.
Check and reconnect hydraulic
hoses. Pressure hose should be
connected to P-port and return
hose to T-port.
Hydraulic piston damaged
mechanically.
Replace damaged part.
FAILURE
REASON
CORRECTIVE ACTION
HPW pump works, but does
not deliver water flow.
Water intake and pressure
valves are open (jammed
with debris) or damaged.
Check water valves and clean
them thoroughly or replace when
damaged.
Regulator’s unloader
valve opens from intake
to pressure (models with
water pressure unloader
valve).
Check the valve and repair failure.
FAILURE
REASON
CORRECTIVE ACTION
HPW pump does not receive
pumping fluid
Intake hose detached or
hose breathes.
Check and fix the hose and
connectors.
Water supply line clogged. Check strainer or water filter and
clean thoroughly.
Suction head to high.
Check the performance with
pressurized water supply when
possible.
FAILURE
REASON
CORRECTIVE ACTION
Water pressure line blocked.
Nozzle clogged.
Check the nozzle and clean
thoroughly.
Regulator’s check valve
damaged, pressure line
blocked (models with
water pressure unloader
valve).
Check the valve and repair failure.
Summary of Contents for HPW 1000
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