Setting play between thrust element and steering rack - AR46.20-P-0601TX
MODEL 171
| Removing | |||
| Only one adjustment procedure for the rackand- pinion steering is permissible. Should several caulkings (center punch marks) be visible on the adjustment screw (2), it is assumed that an adjustment procedure has already been performed, in this case the rack-and-pinion steering should be replaced | |||
| 1 | Remove rack-and-pinion steering | AR46.20-P-0600V | |
| 2 | Mount the rack-and-pinion steering on the steering gear housing support | Ensure that the workplace is scrupulously clean when carrying out the work described below and while performing repairs! Only the specified tool may be used! Before the start of repair remove loose contamination without using cleaning agent on the steering gear housing (14)! |
Specified Tool: 203589043100 |
| 3 | Detach both inner tie rods with axial joints | AR46.40-P-0201V | |
| 4 | Screw the stop plates (1) on the left and right into the gear rack (4) | ||
| 5 | Grease steering rack (4) | Renolit JP1619 special grease | BR00.45-Z-1067-06A |
| 6 | Crank gear rack (4) several times using socket wrench | 203589043103 | |
| 7 | Move steering rack (4) to center position | The gear rack must be exactly in the center position, to avoid falsifying the test result. Detach the stop plates (1) on both sides of the gear rack. Find the middle position using a depth gauge. Balance out the gaps from the end of the steering rack to the stop ring (16) in the steer jacket (14) on both sides of the steering rack. |
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| 8 | Pull rubber plug carefully out of the adjusting screw (2) | Do not damage rubber plug when pulling out. | |
| Checking | |||
| 9 | Mount bracket and dial indicator on the steering gear housing (14) over the adjustment screw (2) | 203589033100 001589532100 |
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| 10 | Using the dial indicator, check the play between the gear rack (4) and thrust piece (3) | To do this, crank the gear rack in the direction of the arrow. In the process the specified test torque of the toothed rack must not be exceeded, otherwise the inner compression spring will be damaged. Test torque Further procedure after determining an unacceptable play between the toothed rack and thrust piece: Play less than 0.04 mm: Adjust play. Play 0.09 to 0.6 mm: Adjust Play. Play greater than 0.6 mm: Replace rack-and-pinion steering. |
BE46.20-P-1001-01C |
| 11 | Detach bracket and dial indicator from steering gear housing (14) | ||
| Adjust play between rack-and-pinion steering and thrust piece (3) | Perform work steps 12 to 18 only if necessary. | ||
| 12 | Tighten adjusting screw (2) on block | ||
| 13 | Slacken adjusting screw (2) approx. 1/8 turn | ||
| 14 | Mount bracket and dial indicator on the steering gear housing (14) over the adjustment screw (2) | ||
| 15 | Using the dial indicator, check the play between the gear rack (4) and thrust piece (3) | To do this, crank the gear rack in the direction of the arrow. In the process the specified test torque of the toothed rack must not be exceeded, otherwise the inner compression spring will be damaged. Test torque: Model 171 If the play is smaller than the specified tolerance, loosen the adjustment screw (2) again slightly (in order to prevent the thrust piece digging into the toothed rack) and check play again. If the play is within the tolerance, then the play is OK. If the play is outside the permissible tolerance, the adjustment must be repeated. Should the play still be outside the permissible tolerance after being adjusted again, the rack-andpinion steering must be replaced. |
BE46.20-P-1001-01C BA46.20-P-1006-01F |
| 16 | Detach bracket and dial indicator from steering gear housing (14) | ||
| 17 | Secure the adjusting screw (2) with three center punch marks | Center punch marks see items, second picture. | |
| 18 | Press rubber plug carefully into the adjusting screw (2) | Check rubber plug for damage and replace if necessary. | |
| Install | |||
| 19 | Mount both inner tie rods with axial joints on gear rack (4) | AR46.40-P-0201V | |
| 20 | Detach rack-and-pinion steering from steering gear housing support | ||
| 21 | Install rack-and-pinion steering | AR46.20-P-0600V |
TEST VALUES FOR STEERING GEAR
| Number | Designation | Model 171 |
|---|---|---|
| BE46.20-P-1001-01C | Play between thrust piece and steering rack | 0.04 to 0.08 mm |
STEERING GEAR
| Number | Designation | Model 171 |
|---|---|---|
| BA46.20-P-1006-01F | Rack Test torque | 10-14 Nm |