AR35.30-W-0471A | Remove/install through-drive pinion housing | 12.4.10 |
REAR AXLE 748.21 /22 /23 /24 /702
with through-drive
W33.30-0041-05
1 Screw
2 Screw
3 Through-drive pinion housing
4 Shim
5 Axle housing
6 Screw
"A" Installed dimension
| Removing | ||
1 | Remove through-drive cover and drive shaft | ||
2 | Remove ring gear with differential | ||
3 | Remove through-drive pinion housing (3) from axle housing (5) | Use plastic hammer. | |
4 | Remove spacer washer (4) | ||
| Install | ||
5 | Install through-drive pinion housing (3) | Coat sealing surfaces with sealant. Place spacer washer (4) on through-drive pinion housing (3) such that the oil duct is kept clear. | |
Before joining the housing parts insert two new bolts (6), for fastening the differential assembly to the axle housing, into the axle housing (5). | |||
Rear axle 748.21/22/23/24 | |||
Rear axle 748.702 | |||
6 | Determine installed dimension "A" of drive pinion | Measure the installed dimension "A" from the center of the tapered roller bearing support on the axle housing to the end face of the drive pinion gear (5) and compare with the basic dimension engraved on the drive pinion gear or ring gear. | |
7 | Compensate for difference between installed dimension and basic dimension | By adding or removing spacer washers (4) between the through-drive pinion housing (3) and axle housing (5). | |
Mount through-drive pinion housing (3) onto axle housing (5) | Coat spacer washer (4) and sealing surfaces on through-drive pinion housing (3) and on axle housing (5) with sealant. | ||
Rear axle 748.21/22/23/24 | |||
Rear axle 748.702 | |||
8 | Install crown wheel with differential | ||
9 | Install through-drive cover complete with drive shaft |
Through-drive
Number | Designation | Rear axle 748.21/22/23/24 with through-drive, ring gear 233 mm dia. | |||
BA35.30-N-1001-04A | Bolt, through-drive pinion housing to axle housing | M101.5 | Nm | 55 | |
M141.5 | Nm | 240 | |||
Through-drive
Number | Designation | Rear axle 748.21/22/23/24 with through-drive, ring gear 300 mm dia. | |||
BA35.30-N-1001-04A | Bolt, through-drive pinion housing to axle housing | M101.5 | Nm | - | |
M141.5 | Nm | 162 | |||
Through-drive
Number | Designation | Rear axle 748.702 with through-drive, 233 mm dia. ring gear | |||
BA35.30-N-1001-04B | Bolt, through-drive pinion housing to axle housing | M101.5 | Nm | 55 | |
M141.5 | Nm | 240 | |||
Repair materials
Number | Designation | Order number |
BR00.45-Z-1015-01A | Loctite 5203 sealant | A 002 989 71 20 10 |