Remove/install steering gear

AR46.20-W-0500FB

Remove/install steering gear

18.12.2019

Model

930.0/1/2, 932.0/1/2, 933.1, 934

HEMA steering HD900

Model

930.0/1/2, 932.0/1/2, 933.1, 934

SteeringRB8098

Model

930.0/1/2, 932.0/1/2, 933.1, 934

SteeringZF8098

Modification notes

18.12.2019

Work procedure completely revised.

Shown on HEMA HD900 steering

1

Steering gear

8

Oil pressure line

16

Nut

1.1

Primary shaft

9

Oil return line

17

Universal joint

2

Oil reservoir

10

Nut

18

Screw

3

Bracket

11

Pitman arm

19

Boot

4

Screw

12

Nut

A

Assembly slot

5

Oil suction hose

13

Drag link

B

Mark

6

Screw

14

Steering bracket

C

Mark

7

Bracket

15

Screw

 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.

AS00.00-Z-0013-01A

 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.

AS46.00-Z-0002-01A

 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.

AS60.80-Z-0001-01A

Topical note

Notes on self-locking nuts and bolts

AH00.00-N-0001-01A

Topical note

Notes on maintenance and repair work

AH46.20-N-0001-01H

Topical note

Notes on tilting the cab

AH60.80-N-0003-01A

Note on calculation of tightening torque when using insertion or socket tools with various effective lengths

AH00.00-P-0015-01CW

Notes on safety-relevant components

AH00.00-Z-0019-01A

Assessment of steering after accidents

AH46.00-N-1000-01A



Remove

1

Fix holding device for loosening and tightening pitman arm (11) in place under a rear wheel on driver's side.

Only when replacing the steering gear (1) or pitman arm (11).

 To fix the vehicle in place, drive the corresponding rear wheel onto the holding device.

 Holding device

*964589004000

2.1

Turn steering full lock to the right.

Left-hand drive vehicle

2.2

Turn steering full lock to the left.

Right-hand drive vehicle

3

Open maintenance flap.

4

Tilt cab.

5

Loosen nut (10).


Do not remove nut (10). To pry off drag link (13), nut (10) must be screwed onto the thread of the ball joint at least up to the safety collar.
This prevents the thread of the ball joint on the drag link (13) being damaged during removal.

 Counterhold the ball joint with an Allen wrench if necessary.

6

Pry off drag link (13) from pitman arm (11).

 The drag link (13) detaches suddenly.

 Puller

*625589003500

7

Remove nut (10) and remove drag link (13) from pitman arm (11).

8

Detach boot (19) from steering gear (1) and slide upward.

9

Move steering gear (1) to center position.

HEMA steering HD900

AR46.20-W-0500-01EB

Steering RB8098, ZF8098

AR46.20-W-0500-01FB

 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 by half the number of turns and align primary shaft (1.1) with steering gear (1) so that the marks (B and C) line up.

10

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 (1) is still at the center position.

11

Check marking (B) on primary shaft (1.1) relative to assembly slot (A) of lower universal joint (17).

If assembly slot (A) has moved,



Mark installation position of lower universal joint (17) relative to primary shaft (1.1).

12

Detach steering shaft with universal joint (17) from steering gear (1) and fasten at the side.

13

Detach oil pressure line (8) and oil return feed line (9) from steering gear (1).

 Counterhold corresponding fittings at steering gear (1).
Collect escaping oil in a suitable container.
Plug openings.

 Plug

*963589019100

14

Detach oil container (2) with holder (3) from steering gear (1) and fasten at the side.

15

Attach lifting belt to steering gear (1).


The lifting belt must be suitable for a load of at least 1000 kg and it must not make contact with sharp-edged objects.
Otherwise the lifting sling may tear and the steering gear (1) may be damaged.

16

Using suitable lifting gear, detach steering gear (1) from steering bracket (14) and place on floor or suitable tool cart.

 Box wrench

*765589010300

17

Detach pitman arm (11) from steering gear (1).

Only when replacing the steering gear (1) or pitman arm (11).

AR46.40-W-2000-01B

 The pitman arm (11) detaches suddenly when it is pulled off.

 Lifting device

*964589025900

 Holding device

*964589004000

 Spindle

*655589003502

 Bell-type puller

*964589003300



Install

18

Attach pitman arm (11) to steering gear (1).

Only when replacing the steering gear (1) or pitman arm (11).

AR46.40-W-2000-01B

 Make sure that the pitman arm (11) is positioned correctly relative to the pitman arm shaft.
Use new nut (12).

 SteeringZF8098Nut, steering gear pitman arm to steering gear

*BA46.20-N-1003-01J

 SteeringRB8098Nut, steering gear pitman arm to steering gear

*BA46.20-N-1003-01JB

 HEMA steering HD900Nut, steering gear pitman arm to steering gear

*BA46.20-N-1003-01JC

 Lifting device

*964589025900

 Holding device

*964589004000

19

Attach steering gear (1) to steering bracket (14).

 SteeringZF8098Bolt/nut, steering gear to steering bracket

*BA46.20-N-1001-01J

 SteeringRB8098Bolt/nut, steering gear to steering bracket

*BA46.20-N-1001-01JB

 HEMA steering HD900Bolt/nut, steering gear to steering bracket

*BA46.20-N-1001-01JC

 Box wrench

*765589010300

20

Detach lifting belt from steering gear (1).

21

Attach oil container (2) with holder (3) to steering gear (1).

 SteeringZF8098Bolt/nut, bracket for oil reservoir to steering gear

*BA46.20-N-1015-01J

 SteeringRB8098Bolt/nut, bracket for oil reservoir to steering gear

*BA46.20-N-1011-01JB

 HEMA steering HD900Bolt/nut, bracket for oil reservoir to steering gear

*BA46.20-N-1011-01JC

22

Remove all stop plugs.

23

Install new fittings for oil pressure line (8) and oil return feed line (9) into steering gear (1).

Only when replacing the steering gear (1).

 On vehicles with an elbow fitting (steering RB8098, steeringZF80982nd generation, HEMA steering HD900), install an elbow fitting with test connection so that the hydraulic steering limiter can be adjusted later if required.
The elbow fitting can be ordered under part number A 004 997 20 71.

 SteeringZF8098Oil pressure line fitting to steering gear

*BA46.20-N-1013-01J

 SteeringZF8098Fitting for oil return line to steering gear

*BA46.20-N-1014-01J

 SteeringZF8098Elbow fitting, hose connection for return hose to steering gear

*BA46.20-N-1016-01J

 SteeringRB8098Oil pressure line fitting to steering gear

*BA46.20-N-1009-01JB

 SteeringRB8098Fitting for oil return line to steering gear

*BA46.20-N-1010-01JB

 SteeringRB8098Elbow fitting, hose connection for return hose to steering gear

*BA46.20-N-1012-01JB

 HEMA steering HD900Oil pressure line fitting to steering gear

*BA46.20-N-1009-01JC

 HEMA steering HD900Fitting for oil return line to steering gear

*BA46.20-N-1010-01JC

 HEMA steering HD900Elbow fitting, hose connection for return hose to steering gear

*BA46.20-N-1012-01JC

24

Attach oil pressure line (8) and oil return feed line (9) to steering gear (1).

 Counterhold corresponding fittings at steering gear (1).

 Union nut, steering gear oil line/hose

*BA46.25-N-1001-04B

25

Move steering gear (1) to center position.

HEMA steering HD900

AR46.20-W-0500-01EB

Steering RB8098, ZF8098

AR46.20-W-0500-01FB

 If necessary, turn primary shaft (1.1) all the way once to the left or right up to the end stop. Then turn primary shaft (1.1) all the way in the opposite direction and count the number of turns while doing so. Finally, turn primary shaft (1.1) back by half the number of turns and align with steering gear (1) so that the marks (B and C) line up.

 Adapter kit

*964589000900

26

Attach steering shaft with universal joint (17) to steering gear (1).

 The contact surface for the screw and nut at the lower universal joint (17) must be free of grease. Pay attention to installation position.

 Fit bolt/nut, universal/constant velocity joint

*BA46.10-N-1001-07B

27

Detach anti-twist lock from steering wheel.

28.1

Turn steering to right.

Left-hand drive vehicle

28.2

Turn the steering to the left.

Right-hand drive vehicle

29

Attach drag link (13) to pitman arm (11).

 Use a new nut (10).
Counterhold the ball joint with an Allen wrench if necessary.

 Nut, drag link to steering gear pitman arm

*BA46.40-N-1001-06P

30

Attach boot (19) to steering gear (1).

31

Fill and bleed steering gear oil.

AR46.25-W-3001A

32

Check steering stops on both sides.

Only if steering gear (1) was replaced.

Model 932.0/1, 934 with front axle 730.108; model 934 with front axle 730.109; model 930.0/1, 932.0/1, 934 with front axle 730.114/115

AR33.25-W-0150A

Model 930.0/1, 932.0/1, 933.1, 934 with front axle 739.4/5

AR33.25-W-0150B

Model 934 with front axle 739.3

AR33.25-W-0150BW

If the steering stops have been changed,



Check hydraulic steering limiter, adjust if necessary.

AR46.20-W-1100B

 The hydraulic steering limiter is preset and may only be adjusted if the steering stops have been changed.

33

Conduct a road test.


When moving out of the workshop, pay attention to the holding device on the rear axle.
Otherwise the vehicle or the special tool may be damaged.

 During the road test check the overall steering behavior of the vehicle.

34

Checking power steering for leaks.

 Visual inspection.

 Steering wheel, steering column bracket, steering shaft

Number

Designation

Model 930, 932, 933, 934, 938

BA46.10-N-1001-07B

Fit bolt/nut, universal/constant velocity joint

Nm

30

 Steering gear

Number

Designation

SteeringZF8098

BA46.20-N-1001-01J

Bolt/nut, steering gear to steering bracket

M20x1.5

Nm

460

 Steering gear

Number

Designation

SteeringRB8098

BA46.20-N-1001-01JB

Bolt/nut, steering gear to steering bracket

M20x1.5

Nm

460

 Steering gear

Number

Designation

HEMA steering HD900

BA46.20-N-1001-01JC

Bolt/nut, steering gear to steering bracket

M20x1.5

Nm

460

 Steering gear

Number

Designation

SteeringZF8098

BA46.20-N-1003-01J

Nut, steering gear pitman arm to steering gear

Nm

750

 Steering gear

Number

Designation

SteeringRB8098

BA46.20-N-1003-01JB

Nut, steering gear pitman arm to steering gear

Nm

750

 Steering gear

Number

Designation

HEMA steering HD900

BA46.20-N-1003-01JC

Nut, steering gear pitman arm to steering gear

Nm

750

 Steering gear

Number

Designation

SteeringRB8098

BA46.20-N-1009-01JB

Oil pressure line fitting to steering gear

Nm

60

 Steering gear

Number

Designation

HEMA steering HD900

BA46.20-N-1009-01JC

Oil pressure line fitting to steering gear

Nm

60

 Steering gear

Number

Designation

SteeringRB8098

BA46.20-N-1010-01JB

Fitting for oil return line to steering gear

Nm

60

 Steering gear

Number

Designation

HEMA steering HD900

BA46.20-N-1010-01JC

Fitting for oil return line to steering gear

Nm

60

 Steering gear

Number

Designation

SteeringRB8098

BA46.20-N-1011-01JB

Bolt/nut, bracket for oil reservoir to steering gear

8.8

Nm

20

10.9

Nm

30

 Steering gear

Number

Designation

HEMA steering HD900

BA46.20-N-1011-01JC

Bolt/nut, bracket for oil reservoir to steering gear

8.8

Nm

20

10.9

Nm

30

 Steering gear

Number

Designation

SteeringRB8098

BA46.20-N-1012-01JB

Elbow fitting, hose connection for return hose to steering gear

Nm

90

 Steering gear

Number

Designation

HEMA steering HD900

BA46.20-N-1012-01JC

Elbow fitting, hose connection for return hose to steering gear

Nm

90

 Steering gear

Number

Designation

SteeringZF8098

BA46.20-N-1013-01J

Oil pressure line fitting to steering gear

Nm

60

 Steering gear

Number

Designation

SteeringZF8098

BA46.20-N-1014-01J

Fitting for oil return line to steering gear

Nm

60

 Steering gear

Number

Designation

SteeringZF8098

BA46.20-N-1015-01J

Bolt/nut, bracket for oil reservoir to steering gear

8.8

Nm

20

10.9

Nm

30

 Steering gear

Number

Designation

SteeringZF8098

BA46.20-N-1016-01J

Elbow fitting, hose connection for return hose to steering gear

Nm

90

 Hydraulic power steering

Number

Designation

Model 930, 932, 933, 934

BA46.25-N-1001-04B

Union nut, steering gear oil line/hose

Line Ø 12 mm

Nm

50

Line Ø 15 mm

Nm

60

 Steering linkage

Number

Designation

Model 930, 932, 933, 934

BA46.40-N-1001-06P

Nut, drag link to steering gear pitman arm

M14x1.5

Nm

95

M18x1.5

Nm

180

M20x1.5

Nm

230

M24x1.5

Nm

285

M27x1.5

Nm

340