Arb RD94 User Manual download pdf (Page 10)

3 Bench Measurement

3.1 Measurement for Pre-Load Shimming

When fitting an ARB Air Locker, the original bearing types are used on

both sides of the Air Locker, however, in order to reproduce a similar

backlash and pre-load to that of your existing differential,

measurements need to be taken so that the correct shim thickness

can be determined for each side.

c Secure the differential to a workbench.

c Remove the bolts that hold the ring gear in place.

c Using a plastic or copper hammer, tap in a circle around the ring

gear to separate it from the differential carrier.

c Remove the original tapered roller bearings and shims from the

differential carrier using a bearing puller. (Fig 3.)

NOTE : Keep the shims separated so that they can be

identified as to which end of the differential they came

from.

Figure 3.

HINT : Check the condition of the bearing for wear and

replace if necessary.

c Using a calliper or similarly accurate measurement method

(i.e., able to take accurate measurements within 0.04mm [0.0015”]),

measure the distance from the bearing shoulder to the ring gear

mounting face (shown as ‘A’ in Figure 4.) and record this

measurement as ‘A’.

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 39 40

No comments

Arb RD94 User Manual Page 10