Remove/install power steering pump

AR46.30-W-0500A

Remove/install power steering pump

23.12.2016

Model

374, 375, 950, 952, 953, 954, 958 with engine 906.9

Model

375, 958, 970, 972, 975, 976 with engine 904.9

Model

673, 674, 676 with engine 904.9

Model

958, 970, 972, 974, 975, 976 with engine 906.9

Modification notes

21.12.2016

Work procedure completely revised.

Shown on engine 904.9 in model 970

1

Oil pressure hose

2

Oil suction hose

3

Power steering pump

4

Cross plate

5

Screw

 Danger !

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

 Danger !

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 with the safety strut.

AS60.80-Z-0001-01A



Notes on self-locking nuts and bolts

AH00.00-N-0001-01A



Notes on maintenance and repair work

AH46.20-N-0001-01H



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



Remove

1

Open maintenance flap

2

Tilt cab

3

Remove soundproofing from frame on the left and below

4

Disconnect oil pressure hose (1) and oil suction hose (2) at a suitable connection point

 Counterhold fitting.
Collect escaping oil in a suitable container.
Seal all openings.

 Plug

*963589019100

5

Remove power steering pump (3) from compressor

6

Remove cross coupling (4)

7

Remove oil pressure hose (1) and oil suction hose (2) from power steering pump (3)

 Counterhold fitting on power steering pump (3).
Collect escaping oil in a suitable container.
Seal all openings.

 Plug

*963589019100

8

Remove fitting from power steering pump (3)

Only when installing new power steering pump (3).



Install

9

Remove stop plug from new power steering pump (3)

Only when installing new power steering pump (3).

10

Mount fittings at new power steering pump (3)

Only when installing new power steering pump (3).

 Model 673, 674, 676Connection fitting to power steering pump

*BA46.30-N-1006-01B

 Model 374, 375, 950, 952, 953, 954, 958, 970, 972, 974, 975, 976Fitting, oil pressure hose/line to power steering pump

*BA46.30-N-1003-01R

 Model 374, 375, 950, 952, 953, 954, 958, 970, 972, 974, 975, 976Fitting, oil suction hose/line to power steering pump

*BA46.30-N-1005-01R

 Tool kit

*000589109900

11

Mount oil pressure hose (1) and oil suction hose (2) onto power steering pump (3)

 Counterhold fitting on power steering pump (3).

 Model 673, 764, 676Oil pressure line to power steering pump

*BA46.30-N-1004-01B

 Model 374, 375, 950, 952, 953, 954, 958, 970, 972, 974, 975, 976Union nut, oil pressure hose/line to fitting for power steering pump

*BA46.30-N-1002-01R

 Model 673, 764, 676Oil suction line to power steering pump

*BA46.30-N-1005-01B

 Model 374, 375, 950, 952, 953, 954, 958, 970, 972, 974, 975, 976Union nut, oil suction hose/line to power steering pump fitting

*BA46.30-N-1004-01R

 Tool kit

*000589109900

12

Place cross coupling (4) onto compressor crankshaft and secure with grease to prevent it from slipping

High-temperature grease

*BR00.45-Z-1051-06A

13

Mount power steering pump (3) onto compressor

 Align driver on power steering pump (3) before mounting cross coupling (4).

 Model 673, 674, 676Bolt, power steering pump to compressor

*BA46.30-N-1001-01B

 Model 374, 375, 950, 952, 953, 954, 958, 970, 972, 974, 975, 976Bolt, power steering pump to compressor

*BA46.30-N-1001-01R

14

Mount oil pressure hose (1) and oil suction hose (2) onto steering gear oil lines in vehicle

 Counterhold fitting.

 Union nut, steering gear oil line/hose

*BA46.25-N-1001-04B

 Tool kit

*000589109900

15

Install soundproofing at left and bottom onto frame

16

Lower cab

Only for vehicles with steering gear 765.861

17

Bleed steering system

Steering gear 765.6

AR46.25-W-3300D

Steering gear 765.82/83/84

AR46.25-W-3300C

Steering gear 765.861

AR46.25-W-3300A

HEMA steering HD900, RB8098, ZF8098

AR46.25-W-3001A

SteeringZF8097

AR46.25-W-3001G

 STEERING GEAR 766.4
Work instructions have not been compiled for vehicles equipped with this steering gear.

18

Check power steering pump (3) for leaktightness

 Visual inspection.

 Hydraulic lines

Number

Designation

Model 374

Model 673, 674, 676

BA46.25-N-1001-04B

Union nut, steering gear oil line/hose

Line Ø 12 mm

Nm

50

50

Line Ø 15 mm

Nm

60

60

 Hydraulic lines

Number

Designation

Model 375.1, 958.0, 970, 972, 974, 975, 976

Model 375.3/4, 940, 942, 943, 944, 950.5/6, 952.5/6, 953.6, 954.5, 958.2/4

BA46.25-N-1001-04B

Union nut, steering gear oil line/hose

Line Ø 12 mm

Nm

50

50

Line Ø 15 mm

Nm

60

60

 Power steering pump

Number

Designation

Steering gear 765.60 in model 673, 674, 676 with engine 904

BA46.30-N-1001-01B

Bolt, power steering pump to compressor

Nm

40

 Power steering pump

Number

Designation

Engine 900.9, 902.9, 904.9, 906.9, 924.9, 925.9, 926.9

BA46.30-N-1001-01R

Bolt, power steering pump to compressor

Nm

40

 Power steering pump

Number

Designation

Engine 900.9, 902.9, 904.9, 906.9, 924.9, 925.9, 926.9

BA46.30-N-1002-01R

Union nut, oil pressure hose/line to fitting for power steering pump

Nm

60

 Power steering pump

Number

Designation

Engine 900.9, 902.9, 904.9, 906.9, 924.9, 925.9, 926.9

BA46.30-N-1003-01R

Fitting, oil pressure hose/line to power steering pump

Nm

50

 Power steering pump

Number

Designation

Steering gear 765.60 in model 673, 674, 676 with engine 904

BA46.30-N-1004-01B

Oil pressure line to power steering pump

Nm

90

 Power steering pump

Number

Designation

Engine 900.9, 902.9, 904.9, 906.9, 924.9, 925.9, 926.9

BA46.30-N-1004-01R

Union nut, oil suction hose/line to power steering pump fitting

Nm

60

 Power steering pump

Number

Designation

Steering gear 765.60 in model 673, 674, 676 with engine 904

BA46.30-N-1005-01B

Oil suction line to power steering pump

Nm

90

 Power steering pump

Number

Designation

Engine 900.9, 902.9, 904.9, 906.9, 924.9, 925.9, 926.9

BA46.30-N-1005-01R

Fitting, oil suction hose/line to power steering pump

Nm

95

 Power steering pump

Number

Designation

Steering gear 765.60 in model 673, 674, 676 with engine 904

BA46.30-N-1006-01B

Connection fitting to power steering pump

Nm

75

Repair materials

Number

Designation

Order number

BR00.45-Z-1051-06A

High-temperature grease

A 000 989 81 51