SUNWARD SWE215F-5 - Page 168

OPERATION & MAINTENANCE MANUAL SWE215F
161
Mode selection
Problem
Cause
Remedy
Work mode
selection does not
work
Defective indicator
Defective controller
Defective solenoid valve
Defective wire circuit
Contact with your designated distributor
Contact with your designated distributor
Contact with your designated distributor
Contact with your designated distributor
High/low travel
speed selection does
not work
Travel pilot pressure switch
Defective controller
Defective solenoid valve
Defective wire circuit
Travel motor
Contact with your designated distributor
Contact with your designated distributor
Contact with your designated distributor
Contact with your designated distributor
Contact with your designated distributor
Hydraulic system
Problem
Cause
remedy
Hydraulic function
slow
Low hydraulic oil level
Low hydraulic oil temperature
Oil type do not match
ambient temperature
Low engine revs
Main pump wear out
Pilot oil circuit malfunction
Main suction oil pump
blocked
Add hydraulic oil until specified scale level is
reached
Warm up operation until hydraulic temperature
reaches around 50℃.
Use proper oil
Adjust engine revs or contact with distributor
Contact with distributor
Contact with distributor
Contact with distributor
Hydraulic oil
overheating
Improper oil
Low hydraulic oil level
Hydraulic oil polluted
Radiator clogging
Filter clogging
pump suction pipe leakage
main pump wear out
safety valve
improper adjustment on
hydraulic element
Use proper hydraulic oil
Add hydraulic oil to reach specified scale level
Filter or drain out and refill with proper oil
Clean radiator and front drainer
Clean or replace filter
Contact with distributor
Contact with distributor
Contact with distributor
Contact with distributor