Remove/install automatic gear control (AGS) hydraulic pump

AR26.21-W-1006B

Remove/install automatic gear control (AGS) hydraulic pump

3.11.10

 

Remove/install

 Danger!

Risk of injury to hands or eyes when working on hydraulic pressure reservoir systems caused by hydraulic fluid to specification 345.0 spraying out under pressure

Depressurize hydraulic pressure reservoir system before commencing work on system. Wear protective gloves and safety glasses.

AS00.00-Z-0028-01A

1

Depressurize pressure reservoir for automatic gear control (AGS)

 Depressurization should preferably be carried out using STAR DIAGNOSIS as the system can be filled with a pressure of up to 90 bar and the manual depressurization represents an increased source of danger.

AR26.10-W-0020-06A



*BA26.60-N-1004-02A



Notes on hydraulic fluid as per Specification, Sheet 345.0

AH00.40-N-0002-01A

2

Loosen bolts (5) only (do not remove)



*BA26.60-N-1002-02A

3

Remove automatic gear control (AGS) control unit (A92a1)

AR26.21-W-2001A

4

Detach hydraulic line (2) from hydraulic pump (A92m1)

 The chamfer of the release fork (7) must face the chamfer on the fitting of the hydraulic line (2).

Collect any escaping hydraulic oil in suitable container and dispose of in line with applicable regulations.



*715589216300

5

Unscrew bolt (3) and remove both battery line holders

6

Remove bolts (4)



*BA26.60-N-1009-02A

7

Unscrew bolts (5) completely

 Installation: Screw in bolts (5) only hand-tight.

8

Remove hydraulic pump (A92m1)

 To do so, loosen the hydraulic pump (A92m1) by pushing the connector plug (1). Carefully push the automatic gear control (AGS) hydraulic controller unit (A92) toward the frame and remove the hydraulic pump (A92m1) by moving in the direction of travel.

 Installation: Install a new hydraulic pump (A92m1) and new O-rings (8). When doing so, make sure that the O-rings (8) are seated correctly in the hydraulic pump (A92m1) and in the automatic gear control (AGS) hydraulic controller unit (A92).

9

Install in the reverse order

10

Fill oil container with hydraulic fluid

 Only sheet 345.0 hydraulic fluid may be used as otherwise the hydraulic system may fail.



Hydraulic fluids (Specification 345.0)

BB00.40-P-0345-00A

11

Switch on ignition

12

Check and correct hydraulic oil level

AR26.60-W-0009A

Number

Designation

Transmission
712.611/62/63,
715.050/060/068
with code GE1

BA26.60-N-1002-02A

Hydraulic transmission positioner and controller unit to transmission housing

Nm

25

BA26.60-N-1004-02A

Bolt to pressure limiting valve

Nm

8

BA26.60-N-1009-02A

Hydraulic pump to controller unit

Nm

12