Seal-Pinion Gear
Seal - pinion gearRemove
1. Remove pinion housing.
CAUTION: Before dismantling the pinion housing, measure the turning torque on existing bearings.
2. Attach pinion housing to suitable mounting plate and secure mounting plate in vice.
3. Check pinion torque to turn figure.
4. Reference mark pinion flange and pinion shaft for assembly purposes.
5. Restrain pinion flange using LRT-51-003.
6. Remove and discard nut.
7. Position pinion housing onto press, fit suitable adaptor on end of pinion shaft, press pinion shaft from drive flange and housing.
8. Remove and discard collapsible spacer.
9. Using a suitable lever, remove pinion oil seal.
CAUTION: Take care to avoid damage to oil seal recess.
10. Remove pinion bearing inner race.
Refit
1. Clean pinion shaft, drive flange and housing.
2. Clean oil seal recess.
3. Lubricate and fit bearing to pinion housing.
4. Lubricate new seal.
5. Using a suitable adapter, press seal into housing.
CAUTION: Oil seal must be flush with end of pinion housing.
6. Assemble pinion to housing using new collapsible spacer.
7. Lightly lubricate drive flange splines with Molybdenum Disulphide grease.
8. Align pinion to drive flange reference marks and press flange onto pinion shaft until a 2 mm clearance exists in bearings.
9. Fit pinion assembly to mounting plate and secure in vice.
10. Fit new pinion nut, hold pinion drive flange using LRT-51-003 and tighten pinion nut to 150 Nm (111 ft. lbs.).
11. Check pinion torque to turn figure.
NOTE: Figure for new bearings is 180 to 200 Ncm.
If original bearing figure is above 20 to 30 Ncm and below new bearing figure, set to figure recorded.
If original bearing is below 20 Ncm set to 20 to 30 Ncm.
12. If turning torque is too low, carefully tighten nut and recheck reading. If turning torque is too high, pinion assembly will have to be dismantled and a new collapsible spacer fitted. Reassemble using new nut and recheck turning torque.
13. Check drive flange run-out using a Dial Test Indicator (DTI).
CAUTION: The drive flange run-out should not exceed 0.05 mm.
14. Remove pinion housing from vice and mounting plate.
15. Fit pinion housing.