Backlash Inspection and Adjustment
- Tools Required- J8001 Dial Indicator Set
1. Use the J36599 in order to tighten the right sleeve.
- Tighten the right sleeve to 140 Nm (100 ft. lbs.).
NOTICE: Refer to Fastener Notice in Caution and Notices.
2. For the T, K1, and K2 models, use the J36599 in order to tighten the left sleeve.
- Tighten the left sleeve to 140 Nm (100 ft. lbs.).
3. For the K3 model, use the J36615 in order to tighten the adjuster plug.
- Tighten the adjuster plug to 140 Nm (100 ft. lbs.).
4. Mark the location of the adjusting sleeves in relation to the carrier halves.
Ensure that the notches in the adjusting sleeves can be counted when turned.
5. Turn the right sleeve OUT two notches.
6. For the T, K1, and K2 models, turn the left sleeve in one notch.
7. For the K3 model, turn the adjuster plug in one notch.
8. Rotate the pinion several times in order to seat the bearings.
MEASURING BACKLASH
1. Install a dial indicator so the button contacts the outer edge of the pinion flange.
Ensure that the plunger is at a right angle to the pinion flange.
2. Move the pinion flange through the pinion flange's free play while holding the differential carrier.
Record the dial indicator reading.
3. Divide the dial indicator reading by 2 in order to obtain the actual backlash when using this method.
A dial indicator reading of 0.16 mm means that there is actually 0.08 mm backlash.
4. In order to adjust the backlash, use the following procedure:
- The gear backlash should be between 0.08 - 0.25 mm (0.0003 - 0.010 inch) with a preferred specification of 0.13 - 0.18 mm (0.005 - 0.007 inch).
- If the backlash is incorrect, adjust the sleeves as necessary. Always maintain the one notch preload on the side bearings.
Example: If necessary to turn the right sleeve in one notch, then turn the left sleeve out one notch.
- In order to increase the backlash, turn the left sleeve in and turn the right sleeve out an identical amount.
- In order to decrease the backlash, turn the right sleeve in and turn the left sleeve out an identical amount.
- Changing the sleeves one notch changes the backlash about 0.08 mm (0.003 inch).