Yuchai YC25-8, User Manual

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Hydraulic Digger
4-51
Trouble Reason Resolve
●
The hydraulic pump destroy
●
contact assistant service
●
The pressure of the main safety valve
become low
●
Adjust the pressure
●
The level of the oil low
●
Immit the oil
●
The oil suction filter obstructed
●
Clean the filter
●
The oil sealer destroy
●
Repair or replace
●
The piston lever destroy and leak oil
●
Repair or replace
●
The guide valve trouble
●
Replace
16.The oil
tanks or the
motor no
working or no
power to
working
●
The guide pipe rupture and leak oil
●
Repair or replace
17.Double
driving device
not working
●
The joint of the central rotating series
oil
●
Contact assistant service
●
The driving device destroy
●
Contact assistant service
18.One driving
device not
working
●
The control machine destroy
●
Check and repair
●
The pedrail too tight or too loose
●
Adjust it again
●
The performance of the oil pump
reduce
●
contact assistant service
●
The pedrail frame metamorphosed
●
Repair or replace
●
The chain of the pedrail has the scree
●
Repair
●
The control valve leaks oil
●
contact assistant service
19.Driving
deviant
●
The performance of the motor reduce
●
contact assistant service
●
The performance of the oil pump
reduce
●
contact assistant service
●
The rotating motor destroy
●
contact assistant service
20.The
rotating
deviant
●
The guide valve not working
●
contact assistant service
●
The rotating gear attrite
●
contact assistant service 21.The
rotating
discrete
●
The rotating bearing or ball bearing
attrite
●
contact assistant service