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7)
DIFFERENTIAL
No
Condition
1
Constant noise in differential.
2
Noise at different intervals.
3
Noise on turns only.
4
Leakage of the oil.
Possible causes
(1)
Oil is not enough(Replace
interval : 50 hrs first, then every
500hrs ).
(2)
Wrong kind of oil.
(3)
Wheel
bearings
adjustment or have a defect.
(4)
Drive gear and pinion not in
adjustment for correct tooth
contact.
(5)
Teeth of drive gear and pinion
have been damage or worn.
(6)
Gear backlash is too much or
too little.
(7)
Loose or worn on pinion
bearings.
(8)
Loose or worn on side bearing.
(1)
Ring gear does not run even.
a.
Bolts on drive gear are not
tightened correctly.
b.
Drive gear has a defect
(warped)
(2)
Loose or broken differential
bearings.
(1)
Differential pinion gears are tight
on the spider.
(2)
Side gears are tight in differential
case.
(3)
Differential pinion or side gears
have a defect.
(4)
Thrust washers worn or have a
damage.
(5)
Too much clearance(backlash)
between side gears and pinions.
(1)
Leakage through axle hub
carrier
a.
Too much oi
b.
Wrong kind of oil.
c.
Much restriction on air eather.
(2)
Leakage around pinion shaft.
a.
Too much oil.
b.
Wrong kind of oil.
c.
Much restriction on air eather.
d.
Oil seal worn or not installed
correctly.
3-64
Correction
Refueling lubricating oil
Exchange lubricating oil
out
of
Exchange bearing
Re-assemble
Exchange dameged gear
Exchange differential gear set
Exchange bearing
Exchange bearing
Tighten bolts
Exchange dameged drive gear
set
Exchange bearing
Exchange differential pinion gear
or spider
Exchange differential side gear
Exchange differential gear set
Exchange differential washer
Exchange differential gear set
Adjust oil level
Exchange lubricating oil
Exchange air breather
Adjust oil level
Exchange lubricating oil
Exchange air breather
Exchange oil seal
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