Unimog 406 and later Axle info.
REAR AXLE TORQUE SPECS
| Tightening Torques (Nm) | ||||||||||||||
| Rear axle | ||||||||||||||
| Designation | Thread | Strength | Tightening torques for model 747….. | |||||||||||
| .001 | .030 | .003 | .007 | .110 | .111 | .200 | .302 | .310 | .410 | .420 | ||||
| .002 | .130 | .105 | .006 | .112 | .113 | .201 | .303 | .421 | ||||||
| .005 | .320 | .009 | .204 | |||||||||||
| .031 | .330 | .014 | .208 | |||||||||||
| .101 | .019 | .230 | ||||||||||||
| .102 | .231 | |||||||||||||
| .103 | .232 | |||||||||||||
| Wheel hub to driven wheel | M 16 x 1.5 | 10.9 | 320 | 320 | 320 | 290 | 320 | 320 | 600 | - | - | 320 | - | |
| M 20 x 1.5 | 12.9 | - | - | - | - | - | - | - | - | 600 | - | 600 | ||
| Brake disk to driven wheel | M 18 x 1.5 | 12.9 | - | - | - | - | - | - | - | - | 400 | 400 | - | |
| Nut of clamping screw | M 20 x 1.5 | 10.9 | 220 | 220 | 220 | 220 | 220 | 220 | - | - | - | - | - | |
| to driven wheel | ||||||||||||||
| Driving wheel to drive shaft | M 16 x 1.5 | 12.9 | 300 | - | - | - | 300 | 300 | - | - | 300 | - | - | |
| M 20 x 1.5 | 12.9 | - | - | - | - | - | - | 600 | - | - | - | 600 | ||
| Wheel hub drive to axle tubes | M 12 x 1.5 | 10.9 | 80 | 80 | 80 | 80 | 80 | 80 | - | - | - | 80 | - | |
| M 14 x 1.5 | 12.9 | - | - | 200 | - | - | - | 200 | - | 200 | - | 200 | ||
| M 20 x 1.5 | 8.8 | - | - | - | - | - | - | - | - | - | - | - | ||
| Bearing ring to axle tubes | M 10 | 8.8 | - | - | - | - | - | - | 40 | - | 40 | - | 40 | |
| Control arm to frame | M 14 x 1.5 | 10.9 | 180 | 180 | - | 180 | 275 | - | - | - | - | 180 | - | |
| and axle | M 16 x 1.5 | 10.9 | - | - | - | - | - | 315 | 300 | - | - | - | 300 | |
| Shock absorber to axle | M 14 x 1.5 | 8.8 | - | - | - | 140 | - | - | - | - | - | - | - | |
| respectively frame | M 20 x 1.5 | 8.8 | 240 | 240 | - | - | 250 | 250 | 250 | 400 | - | 400 | 400 | |
| M 14 x 1.5 | 8.8 | 135 | 135 | - | 135 | 140 | - | - | - | - | 135 | 135 | ||
| M 16 x 1.5 | 8.8 | - | - | - | - | - | 180 | 300 | - | - | - | - | ||
| Axle struts to axle tubes | M 16 x 1.5 | 10.9 | 250 | 250 | - | 250 | - | - | - | - | 250 | - | - | |
| M 19 x 1.5 | 10.9 | - | - | - | - | 350 | 350 | 350 | - | - | - | 350 | ||
| Axle struts to thrust tubes | M 16 x 1.5 | 10.9 | 250 | 250 | 250 | 300 | - | - | - | - | - | 250 | - | |
| M 18 x 1.5 | 10.9 | - | - | - | - | 350 | 350 | 350 | 350 | 350 | - | 350 | ||
| Axle tubes | M 12 x 1.5 | 110 | 110 | 110 | 110 | - | - | - | - | - | - | - | ||
| to centre axle housing | M 12 x 1.5 (1 | 12.9 | 135 | 135 | 135 | 135 | 135 | - | - | - | - | 135 | - | |
| resp. halves of axle housing | M 14 x 1.5 | 12.9 | - | - | - | - | - | 200 | 200 | 200 | 200 | - | 200 | |
| Thrust tube resp. thrust tube | M 12 x 1.5 | 10.9 | 100 | 100 | 100 | 100 | 90 | 90 | - | - | - | 100 | - | |
| flange to centre axle housing | M 14 x 1.5 | - | - | - | - | - | - | 200 | 200 | 200 | - | 200 | ||
| Ring gear on differential | M 12 x 1.5 | 12.9 | 120 | 120 | 120 | 120 | 120 | 120 | - | - | 120 | 100 | 100 | |
| housing | M 15 x 1.5 | 12.9 | - | - | - | - | - | - | 300 | 300 | - | - | - | |
| Thrust ball housing | M 10 | 10.9 | 65 | 65 | 65 | 65 | 65 | 65 | 65 | 65 | 65 | 65 | 65 | |
| to transmission | ||||||||||||||
| Drive shaft to transmission | M 10 x 1 | 10.9 | 60 | 60 | 60 | 60 | - | - | - | - | 80 | 80 | - | |
| M 12 x 1 | 10.9 | - | - | - | - | 100 | 100 | 100 | 100 | - | - | 100 | ||
| Fixed caliper to wheel | M 16 x 1.5 | 12.9 | - | - | - | - | - | - | - | - | - | - | - | |
| hub drive housing | M 16 x 1.5 | 10.9 | 320 (2 | 320 | 320 (2 | - | 320 | 320 | - | - | 320 | 320 | - | |
| M 20 x 1.5 | 12.9 | - | - | - | - | - | - | 600 | - | - | - | 600 | ||
| End cover to | M 10 | 8.8 | - | - | - | - | - | - | - | 40 | - | - | - | |
| drum hub | ||||||||||||||
| Planetary drive to hub | M 12 x 1.5 | 8.8 | - | - | - | - | - | - | - | 70 | - | - | - | |
| Set hub to planet carrier | M 14 x 1.5 | - | - | - | - | - | - | - | - | 200 | - | - | ||
| Brake anchor | M 16 x 1.5 | 10.9 | - | - | - | - | - | - | - | 250 | - | - | - | |
| to rear axle flange | ||||||||||||||
| Splash shield to brake anchor | M 10 | 8.8 | - | - | - | - | - | - | - | 40 | - | - | - | |
| Gear nuts | M 18 x 1.5 | 290 (3 | - | - | - | - | - | - | - | - | - | - | ||
| M 18 x 1.5 | 350 | 350 | 350 | 290 | 350 | - | - | - | - | - | - | |||
| M 20 x 1.5 | - | - | 400 (2 | - | - | 400 | 400 | - | 400 | 350 | 350 (4 | |||
| M 22 x 1.5 | - | - | - | - | - | - | - | 400 | - | - | - | |||
| 1) Screw with nut | ||||||||||||||
| 2) Only for axle model 747.113 | ||||||||||||||
| 3) Only for vehicle-model 406.145 | ||||||||||||||
| 4) Bet drucktelier-Radmussener 450 Nm. | ||||||||||||||
| Rear axle | ||||
| Chassis | U 800 | FLU 419 | U 600 | |
| sales designation | U 800 L | U 600L | ||
| U 900 | Componnet-set | |||
| U 1100 | Fa. Trenkie | |||
| U 1100 L | ||||
| Axle Model | 747.001/002/005 | 747.41 | 747.007/008 | |
| .030/031 | .009/014/019 | |||
| .101/102/103 | ||||
| .130/132 | ||||
| Break-away torque | Nm | 3.0 to 3.5 | 2.0 to 2.2 1) | |
| for drive pinion | 2.5 to 3.0 2) | |||
| bearing | ||||
| Backlash | mm | 0.20 to 0.32 | ||
| ringgear-drive | ||||
| pinion | ||||
| Claw play of | mm | .5± 0.2 | ||
| differential lock | ||||
| Axle drive housing | mm | See working sheet "Adjustment of axle drive" | ||
| to big tapered | ||||
| roller bearing | ||||
| at lock end | ||||
| Axle drive housing to | mm | |||
| small tapered roller | ||||
| bearing | ||||
| 1) For bearing no. 001 981 44 05 | ||||
| + 001 981 37 05 | ||||
| 2) For bearing no. 001 981 46 05 | ||||
| +001 981 44 05 | ||||
| 3) For axle model 747.42 | ||||
| Tightening Torques (Nm) | |||||
| Front axle | |||||
| Designation | Thread | Strength | Tightening torques for | ||
| 001 | 030 | 002 | |||
| 031 | 130 | 102 | |||
| 032 | 320 | ||||
| 101 | |||||
| Gear hub to driven gear | M 16X1.5 | 12.9 | 290 | 290 | 320 |
| 320 1) | 320 1) | ||||
| M 20X1.5 | 12.9 | - | - | 600 1) | |
| Brake disk to gear hub | M 18X1.5 | 12.9 | - | - | 400 1) |
| Nut of clamping screw | M 20X1.5 | 10.9 | 220 | 220 | 220 3) |
| to driven gear | |||||
| Driving wheel to drive shaft | M 16X1.5 | 12.9 | - | - | 300 1) |
| M 20X1.5 | 12.9 | - | - | - | |
| Wheel hub drive | M 12X1.5 | 10.9 | 090 | 090 | 090 |
| to steering knuckle | M 14X1.5 | 12.9 | - | - | 200 |
| M 20X1.5 | 8.8 | - | - | 350 1) | |
| Bearing ring to steering knuckle | M 10 | 8.8 | - | - | 40 1) |
| Steering arm respectively | M 12X1.5 | 10.9 | 90-100 | 90-100 | 90-100 |
| steering knuckle arm | M 16X1.5 | 12.9 | - | - | - |
| to steering knuckle | M 18X1.5 | 12.9 | - | - | 400 |
| M 20X1.5 | 12.9 | 450 | 450 | 450 1) | |
| Clamp to steering arm | M 10X1.5 | 8.8 | - | - | 050 |
| resp. steering knuckle arm | M 12X1.5 | 8.8 | |||
| Drag link respectively | M 16X1.5 | - | - | 95±5 | |
| track rods to steering arm | M 18X1.5 | 150±10 | 150±10 | - | |
| resp. steering knuckle arm | M20X1.5 | 8.8 | - | - | 180±10 1) |
| 1) Only for axle-model 737.1./3. | |||||
| 2) M 16 X 1.5 10.9. | |||||
| 3) Only for axle-model 737.002. | |||||