Dual Pumps THOR DIESEL, Owner'S Handbook Manual

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15
Symptom Possible Cause Remedy
Pump running normally
but pressure low. Pressure Regulator valve
Pump sucking air. Check and adjust
Check water supply and
possible air ingress.
Nozzle badly worn Check and/or replace
Worn piston packing Seek professional advice
Fluctuating pressure Blocked water filter Check filter, clean or
replace if necessary.
Pump sucking air Check integrity of suction
hose and connections.
Pressure low after a long
period of normal use.
Nozzle badly worn Check and/or replace
Pump noisy. Pump sucking air Check integrity of suction
hose and connections.
Excessive temperature of Reduce temperature to
liquid in pump below 60ºC, do not allow
pump to idle for long periods.
Blocked water filter Check filter, clean or
replace if necessary.
Worn bearing or valves Seek professional advice
Presence of water in oil. Ingress through breathers Replace oil, do not wash
engine or pump
Worn oil seals Seek professional advice
Water dripping from under pump. Worn piston packing Seek professional advice
Oil dripping from
pump/gearbox/engine.
Worn oil seal Seek professional advice
Excessive vibration in Water supply low Check adequacy of water
lance/delivery line. supply. Ensure suction
filter is below water level.
Ingress of air into suction Check integrity of suction
line hose and connections.
Irregular functioning of Seek professional advice
valves
Blocked water filter
Check filter, clean or
replace if necessary.
9. Fault Finding
10. Storage
Disconnect pressure hose and lance, draining water from the hose.
Disconnect water feed hose, draining water from the hose.
Wash out detergent hose with clean water, draining water from the hose.
Turn over the engine to expel water from pump.
Ensure the equipment is clean and dry before storage.
The equipment should be stored in a dry and frost proof place.