AR25.20-W-0300EA | Clutch servo unit removal and installation | 15.6.09 |
MODEL 930, 932, 933, 934
with CODE (IY2) Hydraulic fluid as per sheet 345.0
except CODE (GE2) Electronic drive control II
except CODE (GE3) Mercedes PowerShift
except CODE (GE7) Mercedes PowerShift 2
MODEL 942, 943, 958.4 with CODE (IY2) Hydraulic fluid as per sheet 345.0
MODEL 375.4, 940, 944
with CODE (IY2) Hydraulic fluid as per sheet 345.0
except CODE (GE3) Mercedes PowerShift
MODEL 374.6 with TRANSMISSION 715.5 with CODE (IY2) Hydraulic fluid as per sheet 345.0
W25.20-1020-09
1 Plunger
2 Clutch servo assistance
3 Clutch travel sensor connector
8 Sealing ring
9 Banjo bolt
10 Sealing ring
11 Connector
4 Compressed-air line
5 Fuse
6 Hydraulic line
7 Banjo union (compressed air line)
W25.20-1055-12
2 Clutch servo assistance
3 Clutch travel sensor connector
4 Compressed-air line
6 Hydraulic line
12 Compressed air line bracket
13 Electrical connector
| Remove/install | ||
| Notes on hydraulic fluid as per Specification, Sheet 345.0 | ||
1 | Drain reservoir pressure of compressed air system | ||
2 | Separate clutch travel sensor connector (3) | ||
3 | Detach compressed air line bracket (12) | ||
4 | Detach compressed-air line (4) | Counterhold at the banjo bolt (9) when loosening the compressed air line (4). | |
| |||
5 | Unscrew the banjo bolt (9) | | |
6 | Remove locking device (5) from connector (11) and detach hydraulic line (6) | Collect hydraulic fluid which runs out with a suitable container. | |
7 | Disconnect electrical connector (13) | ||
8 | Remove clutch servo unit (2) | | |
9 | Remove plunger (1) | Installation: Clean ball head and guide of plunger (1) and grease with long-life grease. | |
10 | Detach connector (11) | Only when replacing the clutch booster (2). | |
| |||
11 | Install in the reverse order | ||
12 | Bleed clutch operating system |
Clutch booster
Number | Designation | Model | Model | Model | Model | |
BA25.20-N-1001-01J | Bolt, clutch booster to transmission housing | Nm | 50 | 50 | 50 | 50 |
BA25.20-N-1003-01J | Banjo bolt (compressed-air line) to clutch booster | Nm | 40 | 40 | 40 | 40 |
BA25.20-N-1010-01J | Union nut (compressed-air line) at clutch booster | Nm | 40 | 40 | 40 | 40 |
Repair materials
Number | Designation | Order number |
BR00.45-Z-1001-06A | Long-life grease | A 000 989 63 51 11 |