Remove/install hydraulic lines on wheel head

AR55.90-W-0009HD

Remove/install hydraulic lines on wheel head

16.03.2018

Model

963, 964

with code A1H (Hydraulic Auxiliary Drive (HAD))

Modification notes

21.02.2018

Information on assessing hydraulic hoses, added.

AH55.30-N-0001-01A

1

Steering knuckle

2

Hydraulic line (control line)

2.1

Hydraulic line (control line)

3

Hydraulic line (leak oil line)

3.1

Hydraulic line (leak oil line)

4

Steering knuckle bracket

5

Brake cylinder bracket

6

Brake cylinder

 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

Topical note

Notes on assessing leaks on Hydraulic Auxiliary Drive (HAD)

AH55.90-N-0001-02A

Topical note

Notes on avoiding damage due to contamination and foreign objects when working on hydrostatic auxiliary drive (HAD)

AH55.90-N-0001-01A

Notes on evaluating hydraulic hoses

AH55.30-N-0001-01A

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

AH00.00-P-0015-01CW

 

Remove/install

1

Remove hydraulic lines (2, 2.1, 3 and 3.1) from brake cylinder holder (5).

AR55.90-W-0009-02HD

 Installation:
Before mounting the hydraulic lines (2.1 and 3.1) to the brake cylinder holder (6) the wheels on the front axle must always be turned to the straight-ahead position. To ensure that the bending radius of the hydraulic lines (2.1 and 3.1) as per the design requirements is given after installation.
Otherwise, when turning the steering while driving, the hydraulic lines (2.1 and 3.1) may be kinked or damaged.

 Nut, hydraulic line to bracket

*BA55.90-N-1012-01A

 Socket set

*963589020900

 Plug

*963589019100

2

Remove hydraulic lines (2 and 3) from steering knuckle (1).

AR55.90-W-0009-01HD

 Threaded fitting to steering knuckle

*BA55.90-N-1010-01A

 Union nut, hydraulic line to threaded fitting

*BA55.90-N-1011-01A

 Bolt, bracket to steering knuckle

*BA55.90-N-1008-01A

 Bolt, bracket to hydraulic line

*BA55.90-N-1013-01A

 Plug

*963589019100

3

Install in the reverse order.

 Hydraulic auxiliary drive (HAD)

Number

Designation

Model 963, 964 with code A1H (Hydraulic Auxiliary Drive (HAD))

BA55.90-N-1008-01A

Bolt, bracket to steering knuckle

M10x16

Nm

50

 Hydraulic auxiliary drive (HAD)

Number

Designation

Model 963, 964 with code A1H (Hydraulic Auxiliary Drive (HAD))

BA55.90-N-1010-01A

Threaded fitting to steering knuckle

M12x1.5

Nm

25

M18x1.5

Nm

70

 Hydraulic auxiliary drive (HAD)

Number

Designation

Model 963, 964 with code A1H (Hydraulic Auxiliary Drive (HAD))

BA55.90-N-1011-01A

Union nut, hydraulic line to threaded fitting

M16x1.5

Nm

25

M22x1.5

Nm

70

 Hydraulic auxiliary drive (HAD)

Number

Designation

Model 963, 964 with code A1H (Hydraulic Auxiliary Drive (HAD))

BA55.90-N-1012-01A

Nut, hydraulic line to bracket

M24x1.5

Nm

70

M26x1.5

Nm

70

 Hydraulic auxiliary drive (HAD)

Number

Designation

Model 963, 964 with code A1H (Hydraulic Auxiliary Drive (HAD))

BA55.90-N-1013-01A

Bolt, bracket to hydraulic line

M10x30

Nm

50