Mitsubishi Heavy Industries BD2GII Service Manual page 55

TESTING AND ADJUSTING
Transfer
Complaint Possible cause Remedy Remarks
Machine does not move Mechanical trouble inside transfer Repair or replace.
in any speed.
Machine does not move One or more gears damaged Replace.
in one or more speeds,
forward or backward.
Noisy operation. (1) Not enough oil Add oil.
(2) Backlash too large ~ Readjust or replace Check bearings,
parts. shaft and gears for
.
wear
—
cause of
~ excessive backlash.
(3) Bearings worn or damaged Replace.
(4) Shaft splines worn Replace.
(5) Gear tooth contact incorrect, Readjust or replace.
or teeth worn or damaged
Oil leakage. (1) Oil level too high Lower oil level.
(2) 0-rings damaged Replace.
(3) Oil seals damaged Replace.
(4) Transfer case installation loose Retighten or replace
• or packing defective packing.
Overheating. (1) Oil level too low Add oil.
(2) Backlash too large or too small Repair or replace. Check bearings for
spalled or cracked
races.
(3) Bearings misaligned Repair or replace.
Abnormal wear.
(1) Oil insufficient or dirty
(2) Abuse
°
Add or change oil.
°
Avoid abuse of
machine.
Check oil for
presence of metal
chips.
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