Adjusting friction torque of steering gear - AR46.20-P-0100-01A
| 5.10.06 | Locknut of friction torque adjusting bolt to steering worm | Model 240 | *BA46.20-P-1005-01A |
MODIFICATION NOTES
| Number | Designation | Model 129 | Model 140 | Model 170 | |
|---|---|---|---|---|---|
| BE46.20-P-1001-01A | Total friction torque of steering gear in center range | Ncm | 100-160 | 100-160 | 100-160 |
TEST VALUES FOR STEERING GEAR
| Number | Designation | Model 202 | Model 208 | Model 240 | |
|---|---|---|---|---|---|
| BE46.20-P-1001-01A | Total friction torque of steering gear in center range | Ncm | 100-160 | 100-160 | 100-160 |
TEST VALUES FOR STEERING GEAR
STEERING GEAR Number Designation Model 129 Model 140 Model 170 Model 202 BA46.20-P-1005-01A Locknut of friction torque adjusting bolt to steering worm Nm 60 60 60 60
STEERING GEAR Number Designation Model 208 Model 240 BA46.20-P-1005-01A Locknut of friction torque adjusting bolt to steering worm Nm 60 45
Scheme 1
Scheme 2
Scheme 3
Scheme 4
Scheme 5
- Loosen jam nut (23m).
- Turn the adjusting screw (23l) in stages by 1/4 revolution. A = smaller play = higher friction value B = larger play = smaller friction value
- Tighten jam nut (23m)
- Check adjustment after tightening the jam nut, repeat the adjustment if necessary
Checking and adjusting friction torque of steering gear - RA46097650120X(46-0120)
Preceding work
Operation no. of operation texts and work units or standard texts and flat rates
Removing and installing steering gear (46-3400)
46-3230
Scheme 6
| Steering gear | Mount on assembly support 140 589 00 59 00 with two screws and clamp in the vise. |
|---|---|
| Total friction torque | Measure at steering shaft with friction torque meter 123 589 02 21 00 and wrench socket insert 123 589 00 08 00 by slowly turning the steering shaft from stop to stop several times. |
| Lock nut (50) | Slacken. Turn adjusting screw (45) 1/4 turn in stages direction "a" = increases friction torque direction "b" = reduces friction torque Tighten collar nut to 60-65 Nm, holding adjusting screw (45) tight. |
| Total friction torque | Re-check after tightening collar nut. Observe notes |
The friction torque in the center area should be 30-60 Ncm above the previously measured basic friction torque.
Example
Friction torque of steering gear after setting
Basic friction torque 60 Ncm
Increase in center area 30-60 Ncm
Total friction torque 90-120 Ncm
Scheme 7
| When the steering shaft is over the center position, the total friction torque should be | New steering | 110-150 Ncm |
|---|---|---|
| Used steering | 100-120 Ncm |
SET VALUE
Special tools
Scheme 8
Scheme 9
Note. The steering gears are equipped with play compensation. However, this only acts in the center range of the steering gear.
An adjustment can therefore only be carried out noting the following points
- Do not adjust friction moment above the specified value.
- When turning the steering gear no high spots should be detected after adjustment.
- The steering must self-center correctly when driving straight ahead on a test drive.
On steering gears 765.900 (model 201 up to vehicle chassis end no. A 084024) the clamping bush (83) must be detached to adjust the friction moment. After adjusting the friction moment, push the clamping bush (83) onto the steering shaft so that both surfaces are parallel to the mounting points of the steering gear and the milled section points towards the pitman arm (arrow).
Push on support ring (84) and tighten the nut (85) to 50 Nm.
Scheme 10
On steering gears 765.922 and 765.950 (model 202), the sleeve (23j) with two surfaces be detached from the steering shaft.
After adjusting the friction moment first
Scheme 11
- align the clamping slot of the sleeve (23j) of the marking notch of the steering shaft, then
- push on sleeve (23j) up to the stop on the steering shaft and secure with new locking ring (23i).
See also:
• AS00.00-Z-0010-01A