SUNWARD SWL2820 - Page 81

SWL2820 Operator’s Manual
80
Trouble Cause Solution
 Endothermic engine
strongly overloaded
 Reduce loads due to
lifting
Traction force is insufficient
in only one direction
 Incorrect setting of the
max. pressure valve
relevant to that direction
 Set valve
 Oil level too low  Refill oil
 Exchanger clogged or
dirty
 Check and change if
necessary
 Unsuitable oil  Change with correct oil
 Suction pipe tightness  Check and eliminate
leakage
 Setting and operation
of the max. pressure valves
 Check setting, repair or
change
 Travel pump faulty  Repair or change
 Pressure relief valve
with high setting
 Set valve
Oil overheating
 Travel motor faulty  Repair or change
 Suction filter clogged  Change
 Endothermic engine
dose not reach max. speed
 Change diesel oil filter
and check injection pump
 Auxiliary pump (gear
pump) faulty
 Check, repair or change
 Pilot pressure
insufficient
 Set
Machine dose not reach
max. speed
 Pressure relief valve
setting incorrect
 Set to rated value
Machine decelerates
discontinuously
 Mechanical
connection with servo
control lever too hard
 Check if rotation is
smooth
 Engine power drop  Check clogging of fuel
filter, injection pump and
valves
Machine accelerate slowly
 Pressure relief valve
setting incorrect
 Set to rated value
 Sealing rings faulty  Change
 Counter pressure in
pump casing
 Drain pipes clogged or
damaged
Oil leakage from engine
propeller shaft and/or pump
 By-pass valve setting
too high
 Check and restore