Modification notes |
5.9.13 | "Remove oil restrictor (69) from main shaft (21)" added. | Operation step 8 | AR26.50-W-0004H |
5.9.13 | "Attach assembly device (73) to transmission (72) and move to upright position" added. | Operation step 12 | AR26.10-W-0001-01HE |
14.10.13 | "Detach assembly device (73) from transmission housing center section (19) and set down horizontally" added. | Step 31 |
W26.50-1060-09
1 | Countershaft bearing cap | 11 | Countershaft | 20.1 | Shim | ||
2 | Tapered roller bearing outer race | 12 | Tapered roller bearing outer race | 21 | Main shaft (with shift unit) | ||
3 | Drive shaft bearing cap | 13 | Reverse gear | 22 | Sliding sleeve | ||
4 | Tapered roller bearing outer race | 14 | Range group | 23 | Drive shaft | ||
5 | O-ring | 15 | Slide hammer puller | 24 | Shift | ||
6 | Retaining ring | 16 | Threaded insert | 25 | Bearing pin for splitter group shift fork | ||
7 | Front section of transmission housing | 17 | Reverse idler shaft | B3 | Countershaft rpm sensor | ||
8 | Sliding block | 18 | Bearing pin for 1st/2nd, 3rd/4th and reverse gear shift forks | B47 | Transmission oil temperature sensor | ||
9 | Shift fork for splitter group | 19 | Center section of transmission housing | S9 | Neutral position switch | ||
10 | Oil pipe | 20 | Tapered roller bearing outer race |
7 | Front section of transmission housing |
32 | Pulling device |
W26.40-1018-01
21 | Main shaft |
69 | Oil restrictor |
W26.50-1214-06
72 | Transmission |
73 | Assembly device |
W26.50-1216-12
| Disassemble | ||
1 | Drain transmission oil | ||
2 | Remove release lever | ||
3 | Detach electrical line at connectors and at brackets | ||
4 | Remove neutral position switch (S9) | Only on vehicles with code GS1 ("Manual" gearshift) or code GS3 ("Hydraulic" gearshift). | |
5 | Remove transmission oil temperature sensor (B47) | ||
6 | Remove countershaft speed sensor (B3) | ||
7 | Remove range group (14) | ||
8 | Remove oil restrictor (69) from main shaft (21) | Only if fitted. | |
9 | Remove shift mechanism (24) | Vehicles with code GS1 ("Manual" gearshift) | |
Vehicles with code GS2 (Gear control) | |||
Vehicles with code GS3 ("Hydraulic" gearshift) without code IY2 (Hydraulic fluid as per sheet 345.0) | |||
Vehicles with code GS3 ("Hydraulic" gearshift) with code IY2 (Hydraulic fluid as per sheet 345.0) | |||
Vehicles with code GS7 (Gear control II) | |||
10 | Remove shift rod of splitter group | ||
11 | Remove reverse idler shaft (17) using threaded insert (16) and impact extractor (15) | ||
| Threaded insert for removing reverse idler shaft | ||
Impact extractor | |||
12 | Attach assembly device (73) to transmission (72) and move to upright position | ||
Assembly device | |||
13 | Remove drive shaft bearing cap (3) and countershaft bearing cap (1) | ||
14 | Remove O-ring (5) and locking ring (6) from oil pipe (10) | ||
15 | Unscrew bolts around circumference of transmission housing center section (19) | ||
16 | Use puller (32) to detach front section of transmission housing (7) | Do not damage sealing surfaces. | |
Hand pump | |||
Hydraulic hose (complete) | |||
Hydraulic cylinder | |||
Adapter | |||
Adapter | |||
Puller | |||
Retaining device | |||
17 | Remove tapered roller bearing outer races (2, 4) from transmission housing front part (7) | Use a suitable drift. | |
18 | Remove splitter group shift fork (9) with sliding blocks (8) | ||
19 | Remove oil pipe (10) | ||
20 | Push reverse idler gear (13) to one side (arrow) | ||
21 | Remove drive shaft (23) | Push the countershaft (11) to one side. | |
22 | Remove sliding sleeve (22) | ||
23 | Insert holding device into countershaft (11) and attach at oil hole in main shaft (21) | Retaining device | |
24 | Remove bearing pin for 1st/2nd, 3rd/4th and reverse gear shift forks (18) | Extraction claw | |
Impact extractor | |||
25 | Lift out main shaft (21), countershaft (11) and shift forks | ||
26 | Clamp main shaft (21), countershaft (11) and shift forks at sun gear in clamping device | Clamping device | |
27 | Detach countershaft (11) from the retainer | ||
28 | Detach 3rd/4th gear shift fork and 1st/2nd gear shift fork with sliding blocks and shift rail from the holding device | ||
29 | Detach retainer from the main shaft (21) | ||
30 | Remove reverse idler gear (13) from transmission housing center section (19) | ||
31 | Detach assembly device (73) from transmission housing center section (19) and set down horizontally | ||
32 | Remove tapered roller bearing outer races (12, 20) and, where applicable, spacer washer (20.1) from transmission housing center section (19) | The spacer washer (20.1) is only fitted in the modified transmission housing center section (19). | |
33 | Disassemble main shaft (21) | ||
34 | Disassemble drive shaft (23) | ||
35 | Disassemble countershaft (11) |
355 589 01 63 00
Impact extractor
715 589 08 31 00
Assembly device
715 589 11 34 00
Adapter
715 589 12 34 00
Adapter
715 589 15 34 00
Hydraulic cylinder
715 589 06 33 00
Extraction claw
715 589 01 31 00
Retaining device
315 589 02 31 00
Clamping device
652 589 00 33 23
Hydraulic hose (complete)
652 589 00 33 21
Hand pump
715 589 05 31 00
Retaining device
715 589 08 33 00
Puller