52
CLEAN OIL TANK AND FILTER
Put the fork of the ground and drain out the hydraulic oil.
Dismantle the lid on the top of the tank
,
pour out the hydraulic oil
Remove out the pump station.
Loosen the hoop (No.12).
Remove the oil tank ( No.18)
Remove the suction filter (No. 16 & 17).
Cleaning of oil tank and filter.
Clean the Fix plate for valve (No.7), etc.
Clean up with compressed air and inspect if the filter is stopped or damaged. If the filter is stopped
or damaged, replace it.
Remove dust or foreign material from the tank.
Then assemble them.
TROUBLE DIAGNOSTICS
Symptom
Abnormality and cause
Measurement
Bubble in hydraulic oil Mixed with air
Check if there is any place
where air can be entered.
Tighten the loosened part again.
Discoloration
Mixed with air and water
Replace the oil.
Became inferior in quality by oxidizing or
mixed with other particles.
Replace the oil.
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