Test values for drive pinion
Number | Designation | Front axle 730.1 | |
BE33.30-N-1001-02A | Friction coefficient of tapered roller bearing | Nm | 2...3 |
Differential assembly without through-drive
Number | Designation | Front axle 730.100/101 | Front axle 730.108/109 | ||||
BA33.30-N-1002-05A | Collar nut, coupling flange to drive pinion gear | Nm | 900 | 900 | |||
Differential assembly without through-drive
Number | Designation | Front axle 730.114/115 | ||||
BA33.30-N-1002-05A | Collar nut, coupling flange to drive pinion gear | Nm | 800 | |||
717 589 00 31 00
000 589 69 63 00
001 589 75 09 00
745 589 01 21 00
Retainer wrench
Torque wrench
Wrench socket
Ratio wrench
W33.30-0037-01
Only check the friction torque with the radial shaft sealing ring removed.
1 Slide connector flange (5) on splines of drive pinion.
2 Attach holder (2) to coupling flange (5) and tighten collar nut (1).
3 Detach holder (2) from coupling flange (5).
W33.30-0038-01
4 Position torque wrench (6) with socket wrench bit (4) on the collar nut.
5 Using torque wrench (6), rotate coupling flange continuously for min. 3 turns while reading off friction torque.
In event of deviation from specified value, compensate for difference using corresponding shim.
Friction torque lower than specified value Insert thinner shim.
Friction torque higher than specified value Insert thicker shim.
Aim for lower specified value for run-in tapered roller bearings and upper specified value for new tapered roller bearings.
6 Detach coupling flange again.