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3-2
REAR AXLE
SHAFT
-4 ' - I
\ , G A ; ; ; ; / '
1
CONE AND ROLLERS
CUP
\
NE AND ROLLERS
\>
j {
I
W"ASHER
1)
\,
1
SPACER
I
4
4
1
i
GEAR
CUP
I
I
"
1
\ \
PINION
PLUG
, , '
I
\,GEAR
I
BOLT
CONE AND ROLLERS
SCREW
/
'OVER
WASHER
GASKET
NY 1606
B
Fig.
2-Rear
Assembly IModels AV-I, AV-2) IDisassembled)
SERVICE DIAGNOSIS
Condition
Possible Cause
REAR AXLE
REAR AXLE
NOISE
(a) Lubricant level low.
(b) Loose drive pinion companion flange nut.
(c) Brinelled or scored wheel bearings.
(d) Bent axle shaft or wheel.
(e) End play in drive pinion bearing.
(f)
Excessive gear lash between drive gear and
(9) Damaged gears.
pinion.
OVER-HEATING
OF
THE AXLE UNIT
(a) Lubricant level too low.
(b) Bearing adjusted too tightly.
(c) Excessive wear in gears.
LOSS
OF
LUBRICANT
(a) Lubricant level too high.
(b) Improper type lubricant.
(c) Clogged breather.
(d) Oil seals worn or damaged.
Correction
(a) Add lubricant as required.
(b) Tighten flange nut to
240
(min) foot-pounds.
(c) Replace wheel bearings.
(d) Replace wheel, or shaft as necessary.
(e) Measure and adjust end play.
(f)
Measure and adjust gear lash.
(g) Replace gears as required.
(a) Add lubricant as required.
(b) Adiust bearings correctly.
(c) Replace excessively worn gears.
(a) Remove excessive lubricant.
(b) Remove lubricant and replace with the recom-
(c) Clean breather thoroughly.
(d) Replace seals as required.
mended type.
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