Arb RD149 Manuel d'utilisateur télécharger pdf (Page 15)

3 Installing the Air Locker

3.5 Setting the Backlash

 Assemble the remaining bearing cup onto the right-hand side of the

Air Locker.

 Loosen the adjuster nuts in the housing so that they are as far apart

as possible.

 Insert the Air Locker into the housing and rotate it until it is fully in

mesh with the pinion gear, with the seal housing tube pointing

straight out of the housing.

 Hand tighten both adjuster nuts against the Air Locker until only a

small amount of backlash can be felt.

 Install the bearing caps (use the markings from Section 2.4 to

determine which side is which) and hand tighten all bearing cap

bolts lightly.

 Set a depth indicator on one of the ring gear teeth as in

Figure 8.

 While supporting the pinion gear by holding the drive shaft, rotate

the differential in both directions while observing the maximum

variation in depth from the indicator (i.e., the highest value minus

the lowest value). This value is referred to as the ring and pinion

backlash.

 Rotate the differential center 90° and measure again for accuracy.

Figure 8.

 Refer to your vehicle service manual for the specified maximum

and minimum amounts of backlash.

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Arb RD149 Manuel d'utilisateur Page 15