Shown on model 957 with steering gear 765.889 |
1 | Nut |
2 | Drag link |
3 | Steering bracket |
4 | Screw |
5 | Bolts |
7 | Universal joint |
8 | Nut |
9 | Screw |
10 | Electrical connector |
11 | Steering gear |
12 | Oil reservoir (with bracket) |
13 | Screw |
14 | Oil suction line |
15 | Oil return line |
16 | Oil pressure line |
17 | Front end of frame |
18 | Bolts |
19 | Pitman arm |
20 | Nut |
S19 | Steering oil level switch |
W46.20-0061-06
11 | Steering gear |
19 | Pitman arm |
20 | Nut |
25 | Lifting device |
26 | Holding device |
W46.20-A036-02
6 | Boot |
7 | Universal joint |
8 | Nut |
9 | Screw |
11 | Steering gear |
11.1 | Primary shaft |
19 | Pitman arm |
20 | Nut |
24 | Puller |
A | Mark |
B | Assembly slot |
C | Mark |
D | Mark |
W46.20-1159-06
Danger | Risk of death caused by vehicle slipping or toppling off during lifting | Only lift vehicle at the lift support points specified by the vehicle manufacturer. | |
Warning | Risk of injury to skin or eyes from hydraulic fluid spraying out under pressure.Risk of poisoning from swallowing hydraulic fluid. | Depressurize hydraulic system completely before starting any work on it. Wear protective clothing and safety glasses. | |
Warning | Risk of injury from being trapped in the swivel range of steered axles | Ensure that no persons or objects are in the swivel range of all steered axles when turning the steering wheel. Do not stand in the swivel range of the additional steering axle when the engine is running. | |
Warning | Risk of injury caused by body parts being pinched or crushed as cab is tilted | Ensure that no one is within the tilting range of the cab as it is being tilted. Always tilt the cab all the way to the end position and secure it with the safety strut. | |
Topical note | Notes on self-locking nuts and bolts | ||
Topical note | Special instructions for lifting and supporting vehicle | ||
Topical note | Notes on threaded connections fastened using a tightening angle-based tightening process | ||
Topical note | Notes on maintenance and repair work | ||
Topical note | Notes on tilting the cab | ||
Note on calculation of tightening torque when using insertion or socket tools with various effective lengths | |||
Notes on safety-relevant components | |||
Assessment of steering after accidents | |||
| Remove | ||
1 | Fix holding device (26) for loosening and tightening pitman arm (19) in place under a rear wheel on driver's side. | Only when replacing the steering gear (11) or pitman arm (19). | |
To fix the vehicle in place, drive the corresponding rear wheel onto holding device (26). | |||
Holding device | |||
2 | Secure vehicle to prevent it moving away. | ||
3 | Lift vehicle at front axle until wheels can turn freely and jack up vehicle. | ||
4.1 | Turn steering full lock to the right. | Left-hand drive vehicle | |
4.2 | Turn steering full lock to the left. | Right-hand drive vehicle | |
5 | Open maintenance flap. | ||
6 | Tilt cab. | ||
7 | Unfasten nut (1). | | |
Counterhold the ball joint with an Allen wrench if necessary. | |||
8 | Pry off drag link (2) from pitman arm (19). | The drag link (2) loosens suddenly. | |
Puller | |||
9 | Remove nut (1) and remove drag link (2) from pitman arm (19). | ||
10 | Detach boot (6) from steering gear (11) and slide upward. | ||
11 | Move steering gear (11) to center position. | ||
To do so, turn steering all the way to the left or right. While doing this, determine the number of turns on the steering shaft. Then turn the steering back again by half the number of turns and align primary shaft (11.1) with steering gear (11) so that the marks (C and D) line up. | |||
12 | Secure steering wheel against turning. | Fix the steering wheel in place on the support rod using e.g. cable ties. Before securing, make sure that the steering gear (11) is at the center position. | |
13 | Check marking (C) on primary shaft (11.1) relative to assembly slot (B) of lower universal joint (7). | If assembly slot (B) has moved, | |
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Mark installation position of lower universal joint (7) relative to primary shaft (11.1). | |||
14 | Detach steering shaft with universal joint (7) from steering gear (11) and fasten at the side. | ||
15 | Detach electrical connector (10) from steering oil level switch (S19). | ||
16 | Detach oil return feed line (15) from steering gear (11). | Counterhold fitting of oil return feed line (15) at steering gear (11). | |
Plug | |||
17 | Detach oil pressure line (16) from steering gear (11). | Counterhold fitting of oil pressure line (16) at steering gear (11). | |
Plug | |||
18 | Detach oil pressure line (16) and oil suction line (14) from frame. | ||
19 | Detach oil container (12) with holder. | Allow oil container (12) with holder and lines to hang down at the side. | |
20 | Attach lifting belt to steering gear (11). | | |
21 | Using suitable lifting gear, remove steering gear (11) together with steering bracket (3) and place on floor or suitable tool cart. | ||
22 | Remove lifting belt and attach lifting device (25) to steering gear (11). | Only when replacing the steering gear (11) or pitman arm (19). | |
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Lifting device | |||
23 | Use suitable lifting gear to transport steering gear (11) to holding device (26) and guide pitman arm (19) into holding device (26). | Only when replacing the steering gear (11) or pitman arm (19). | |
Holding device | |||
24 | Mark installation position of pitman arm (19) relative to pitman arm shaft on steering gear (11). | Only when replacing the steering gear (11) or pitman arm (19). | |
The pitman arm (19) has two marks on it (A): One for the installation position on right-hand drive vehicles, the other for the installation position on left-hand drive vehicles. | |||
25 | Loosen nut (20). | Only when replacing the steering gear (11) or pitman arm (19). | |
Do not remove nut (20). To pull off the pitman arm (19), the nut (20) must be screwed onto the pitman arm shaft at least as far as the collar. | |||
26 | Pull off pitman arm (19) using puller (24). | Only when replacing the steering gear (11) or pitman arm (19). | |
If necessary, lift steering gear (11) slightly or place onto suitable base. | |||
Puller | |||
27 | Remove nut (20) and take off pitman arm (19). | Only when replacing the steering gear (11) or pitman arm (19). | |
If necessary, lift steering gear (11) slightly. | |||
28 | Detach steering bracket (3) from steering gear (11). | Only when replacing steering gear (11). | |
If necessary, lift steering gear (11) slightly. | |||
29 | Place steering gear (11) onto suitable transporting device and remove lifting device (25). | If steering gear (11) is being replaced. | |
Lifting device | |||
| Install | ||
30 | Attach lifting device (25) to steering gear (11). | Only if steering gear (11) was replaced. | |
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Lifting device | |||
31 | Attach steering bracket (3) to steering gear (11). | Only if steering gear (11) was replaced. | |
If necessary, lift steering gear (11) slightly. | |||
Bolt/nut, steering gear to steering bracket | |||
32 | Slide pitman arm (19) onto pitman arm shaft and tighten nut (20) slightly by hand. | Only if steering gear (11) or pitman arm (19) was replaced. | |
Observe the marks (A) as well as the marks applied yourself. | |||
33 | Use suitable lifting gear to transport steering gear (11) to holding device (26) and guide pitman arm (19) into holding device (26). | Only if steering gear (11) or pitman arm (19) was replaced. | |
Holding device | |||
34 | Tighten nut (20). | Only if steering gear (11) or pitman arm (19) was replaced. | |
Nut, steering gear pitman arm to steering gear | |||
35 | Lift steering gear (11), guide out of holding device (26) and place onto suitable transporting device. | Only if steering gear (11) or pitman arm (19) was replaced. | |
36 | Detach lifting device (25) and attach lifting belt to steering gear (11). | Only if steering gear (11) or pitman arm (19) was replaced. | |
37 | Install steering gear (11) together with steering bracket (3). | Bolt/nut, steering bracket to frame | |
38 | Detach lifting belt from steering gear (11). | ||
39 | Attach oil container (12) with holder to steering gear (11). | Bolt, bracket for oil reservoir to steering gear | |
40 | Attach oil pressure line (16) and oil suction line (14) to the frame. | ||
41 | Remove all stop plugs. | ||
42 | Install new fittings for oil return feed line (15) and oil pressure line (16) into steering gear (11). | Only when replacing steering gear (11). | |
Oil pressure line fitting to steering gear | |||
Fitting for oil return line to steering gear | |||
43 | Attach oil pressure line (16) to steering gear (11). | Counterhold fitting of oil pressure line (16) at steering gear (11). | |
Union nut, steering gear oil line/hose | |||
44 | Attach oil return feed line (15) to steering gear (11). | Counterhold fitting of oil return feed line (15) at steering gear (11). | |
Union nut, steering gear oil line/hose | |||
45 | Connect electrical connector (10) to steering oil level switch (S19). | ||
46 | Move steering gear (11) to center position. | ||
If necessary, turn primary shaft (11.1) all the way once to the left or right up to the end stop. Then turn the primary shaft (11.1) all the way in the opposite direction and count the number of turns while doing so. Finally, turn the primary shaft (11.1) back again by half the number of turns and align it thereby with the steering gear (11) so that the marks (C and D) line up. | |||
Adapter kit | |||
47 | Attach steering shaft with universal joint (7) to steering gear (11). | The contact surface for the bolt and nut on the lower universal joint (7) must be free of grease. Pay attention to installation position. | |
Fit bolt/nut, universal/constant velocity joint | |||
48 | Attach boot (6) to steering gear (11). | ||
49 | Detach anti-twist lock from steering wheel. | ||
50 | Bleed steering. | Only on model 957 with steering gear 765.889/896 | |
Leave vehicle jacked up after bleeding. | |||
51.1 | Turn steering full lock to the right. | Left-hand drive vehicle | |
51.2 | Turn steering full lock to the left. | Right-hand drive vehicle | |
52 | Attach drag link (2) to pitman arm (19). | Use new nut (1). | |
Nut, drag link to steering gear pitman arm | |||
53.1 | Bleed steering. | Model 957 with steering gear 765.82 | |
53.2 | Check hydraulic steering limiter, adjust if necessary. | Model 957 with steering gear 765.889/896 | |
Model 957 with steering gear 765.889 | |||
Model 957 with steering gear 765.896 | |||
54 | Conduct a road test. | | |
During the road test check the overall steering behavior of the vehicle. | |||
55 | Checking power steering for leaks. | Visual inspection. |
655 589 00 35 00
Puller
964 589 00 40 00
Holding device
963 589 01 91 00
Plug
964 589 02 59 00
Lifting device
964 589 00 09 00
Adapter kit
625 589 00 35 00
Puller