Pinion Depth Adjustment
- Tools Required- J36601 Pinion Depth Setting Gauge
- J29763 Dial Indicator
- J21777-40 Pinion Setting Gauge Set
1. The pinion depth is adjusted by selecting a shim of the proper thickness.
2. Lubricate the pinion bearings liberally with axle lubricant.
3. For the T, K1, and K2 models, assemble the J29763 to the proper gauging arm.
4. For the K3 model, assemble the J29763 to the proper gauging arm.
5. Install the pinion bearings and hold them in place.
6. For the T, K1, and K2 models, insert the threaded rod of the J36601 through the pinion bearings.
7. Install the proper pilot, washer, and nut.
8. Tighten the nut while holding the threaded rod with a wrench in order to adjust bearing preload.
8.1. Adjust the nut in order to obtain a preload of 1.0 - 1.6 Nm (10 - 15 lb. inch) using an inch pound torque wrench.
8.2. Rotate the shaft several times in order to ensure that the bearings are seated.
8.3. Take another measurement.
9. Push the dial indicator downward until the needle rotates about 3/4 turns.
10. Tighten the dial indicator in this position.
11. Set the button of the J36601 on the differential bearing bore.
12. Rotate the tool slowly back and forth until the dial indicator reads the lowest point of the bore.
12.1. Set the dial indicator to ZERO.
12.2. Repeat the rocking action to the tool in order to verify the ZERO setting.
13. After the ZERO setting is obtained and verified, grasp the gauging arm by the flats and move the tool button out of the differential side bearing bore.
14. Record the dial indicator reading.
15. Setup dimension arrived at with the indicator is to be considered a starting point.
NOTICE: Proper pinion depth setting is a two-step procedure. Both procedures must be performed to ensure proper axle performance and prevent system damage.
16. Gear tooth pattern check is necessary to fine tune the pinion depth and may indicate additional shim changes to the pinion stem.
16.1. Setup dimension arrived at with the indicator is to be considered a starting point.
16.2. Gear tooth pattern check is necessary to fine tune the pinion depth and may indicate additional shim changes to the pinion stem.
16.3. The dial indicator reading is equal to the required shim size.
17. Remove the tool and the bearing cones.