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OPE_EF312T&352T_en.doc
3. Hydraulic system
PROBLEM CAUSE
REMEDY
Low oil level
Fill system with proper oil.
Hydraulic stop valve closed
Open stop valve.
Excessive load on hitch
Reduce load.
Hydraulic oil too cold
Allow oil to warm up.
Hydraulic oil filter clogged
Replace filter.
Defective hydraulic pump or control
valve
See your YANMAR dealer.
Implement not raises
Oil leaks
Check oil leaks.
Hydraulic stop valve closed
Open stop valve.
Hitch drops slowly or does
not drop
Slow return valve set slow
Open valve and adjust drop speed.
Slow return valve set fast
Close valve and adjust drop speed.
System drops too fast
Improper oil
Use oil with proper viscosity.
Incorrect oil viscosity
Drain and fill oil with proper viscosity.
Low oil level
Fill to proper oil level.
Dirty oil
Drain and fill clean oil.
Keeping steering wheel at the end
Release steering wheel.
System overheating
Control lever not returned to neutral
position when using implement
Return lever to neutral position.
4. Power train
PROBLEM CAUSE
REMEDY
Transmission oil level low
Add proper type of oil.
Abnormal noise
Worn or broken gears/bearings
See your YANMAR dealer.
Brakes adjusted unevenly
Adjust brake pedal free travel.
Right and left tires inflated unevenly Inflate tires to proper pressure.
Tractor is pulled to one side
Implement improperly adjusted
See implement operator's manual