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6 Cam Brake Assembly and Installation
28 ArvinMeritor Maintenance Manual MM-0361 (Revised 04-10)
Figure 6.22
2. Rotate the hub three full turns to ensure all the bearings and
seal surfaces are in contact.
3. Back off the adjusting nut 1/4 turn, 2-1/2 studs of the drum
bolt circle. Do not rotate the hub assembly after backing off the
adjusting nut.
4. Assemble the lock ring and jam nut. Tighten the jam nut to
250-400 lb-ft (339-542 Nm). If the lock ring does not line up
with the adjusting nut, rotate the adjusting nut clockwise,
tightening, to the closest lock ring hole. To make the smallest
turn possible, flip the lock ring over if necessary. @
5. Check the resulting end play with a dial indicator and perform
the following actions.
ABS Sensor
1. On units equipped for ABS, push the ABS sensor completely
into the sensor bearing until it contacts the tooth wheel on the
hub. Figure 6.23.
Figure 6.23
2. With the sensor in place, feed any excess cable back through
the grommet on the knuckle. Do not affect the position of the
sensor or allow excess cable to contact the drive shaft.
Figure 6.22
HUB
OUTER
WHEEL
BEARING
CUP
OUTER
WHEEL
BEARING
CONE
OUTER
WHEEL
BEARING
ADJUSTING
NUT
WHEEL
BEARING
LOCK
WASHER
INNER
WHEEL
BEARING
NUT
4000768a
End Play (inch) Action
0.000-0.002 No action required.
>0.002-0.005 Remove the jam nut and lock ring. Tighten
the adjusting nut 1/32 turn by flipping the
lock ring over and turning the adjusting
nut to align with the next hole.
>0.005-0.008 Remove the jam nut and lock ring. Tighten
the adjusting nut 1/16 turn by turning the
adjusting nut to align with the next hole.
Do not flip the lock ring.
>0.008-0.011 Remove the jam nut and lock ring. Tighten
the adjusting nut 3/32 turn by flipping the
lock ring over and turning the adjusting
nut to align with the second hole from the
current position.
>0.011 Return to Step 1 and repeat the
procedure.
Figure 6.23
SENSOR TOOTH
WHEEL
ANTI-LOCK ASSEMBLY
4000794a
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