SUNWARD SWE155F - Page 174

OPERATION & MAINTENANCE MANUAL SWE155F
167
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 distributor
Contact distributor
Contact distributor
Contact distributor
Hydraulic oil
produces bubble
Suction piping leakage
Piping twist or depressed
mix water into oil
improper oil
improper oil volume, too high
or too low
Contact distributor
Check hydraulic piping
Drain out and refill with proper hydraulic oil
Drain out and refill with proper hydraulic oil
Keep hydraulic oil within specified level range
Hydraulic cylinder
acts but cant not lift
loads
Main pump wear out
Main safety valve low
pressure
Suction filter clogging
Pump suction pipe leakage
Hydraulic cylinder wear out
and cause internal leaks
Contact distributor
Contact distributor
Clean or replace oil suction filter
Check oil suction piping
Replace piston ring or contact distributor
Other
Problem
Cause
Remedy
Platform cannot
slew or act slowly
or unstably
Defective control pilot valve
Swing motor defective
Defective swing reduction
gear
Defective swing bearing
Improper lubrication of swing
bearing
Contact our designated distributor
Contact our designated distributor
Contact our designated distributor
Contact our designated distributor
Greasing it
Travel abnormally
Track over stretched or too
loose
Insufficient lubrication of
idler or track roller
Get stuck by stones
Defective brake
Defective pilot valve
adjust
lubricate
remove and clear
repair, replace or contact our distributor
repair, replace or contact our distributor