ARB RD117 - Manual (Page 21)

3 Installing the Air Locker
19
Figure 11.
Consult your vehicle manufacturer’s service manual to determine
the carrier bearing pre-load amount specified for your vehicle.
Add the specified pre-load amount to the measurement taken with
the feeler gauge to determine a shim amount for ‘D’ in Figure 9.
PRE-LOAD + END FLOAT = SHIM PACK
Create a shim pack ‘D’ from the shims supplied with your Air
Locker.
NOTE : Do not add shims between the bearing cone and the
bearing seat and NEVER machine the Air Locker.
Remove the Air Locker from the axle housing.
Install the shim pack ‘D’ between the ARB master shim and the
seal housing as shown in Figure 9.
Spread the differential housing again (Refer to Section 2.6).
Re-install the Air Locker into the axle housing.
NOTE : If the Air Locker is too tight to fully install then the
spreader tension may need to be increased. Do not
spread the housing more than 0.50mm [0.020”].
Rotate the seal housing until the tube is positioned in the center of
the oil drainage notch of the axle housing. (Fig.12.)