LS tractor R4047H User Manual

System Faults Possible causes Solutions
When operating HST
pedal, tractor dose not
start.
▲ Low pressure relief set is too
low
▲ High pressure relief set is too
low
▲ HST charger valve fault
▲ Filter clogged
▲ Pump worn or part damaged
▲ HST moving part worn or
damaged
▲ Check and repair
▲ Check and repair
▲ Replace
▲ Replace filter
▲ Repair or replace
▲ Repair or replace after
check the circuit.
Tractor is still moving
▲ Neutral position of HST pedal ▲ Adjust neutral position
HST
Tractor is still moving
despite pedal being in
neutral position on
HST pedal.
is changed.
▲ HST pedal linkage damaged.
▲ HST arm bolt loosened.
▲ Replace damaged part
▲ Fasten the bolt with
adhesive
HST power is too low
▲ Oil shortage
▲ Air in HST circuit
▲ Transmission oil temperature
is too high.
▲ HST moving part worn
▲ HST filter clogged
▲ Add oil
▲ Check and repair the
hydraulic suction line.
▲ Stop engine to cool the oil,
and restart.
▲ Repair or replace
▲ Replace the filter
Abnormal noise
▲ Engine speed is too low.
▲ Oil temperature is too low.
▲ Set engine rpm over 1500
rev/min
▲ Run engine to warm up
the oil.
5
5 5
5 - 37
▲ Hydraulic oil filter clogged
▲ Oil shortage
▲ Replace the filter
▲ Add oil

LS tractor R4047H Specifications

General

Brand	LS tractor
Model	R4047H
Category	Tractor
Language	English