W26.50-1088-06
1 Tapered roller bearing
2 Retaining ring
3 Sliding sleeve
4 Synchronizer body
5 Synchronizer cone
6 Synchronizer ring
7 Thrust spring
8 3rd gear wheel
9 Needle roller bearing
10 Retaining ring
11 Washer
12 Needle roller bearing
13 2nd gear wheel
14 Thrust spring
15 Synchronizer ring
16 Synchronizer cone
17 Retaining ring
18 Sliding sleeve
19 Synchronizer body
20 Synchronizer cone
21 Thrust spring
22 Synchronizer ring
23 1st gear wheel
24 Needle roller bearing
25 Main shaft
W26.50-1084-11
25 Main shaft
26 Needle roller bearing
27 Crawler gear wheel
28 Synchronizer body
29 Sliding sleeve
30 Reverse gearwheel
31 Needle roller bearing
32 Tapered roller bearing
35 Retaining ring
36 Sleeve
37 Sun gear
38 Retaining ring
W26.50-1087-12
33 Shift unit
34 Tensioning device
Modification notes
| Assemble | ||
Danger! | Risk of injury to skin and eyes caused by handling hot or glowing objects. | Wear safety gloves, protective clothing and safety glasses, if necessary. | |
1 | Disassemble main shaft | ||
2 | Check wear limits between the synchronizer cones (5, 16, 20) and the sliding sleeves (3, 18) | Also check the wear at the synchronizer cone and sliding sleeve of the fourth gear. | |
3 | Clamp main shaft (25) in clamping device (34) | Clamp at the gearing of the synchronizer body (19) of the first/second gear so that the bearing surfaces of the needle roller bearings (12, 24) are not damaged. | |
| |||
4 | Push crawler gear wheel (27) with needle bearing (26) onto main shaft (25) | Lubricate needle roller bearings (26) and thrust collar on the crawler gear gear wheel (27). | |
5 | Push synchronizer body (28) onto the main shaft (25) | ||
6 | Install circlip (35). | ||
7 | Install sliding sleeve (29). | ||
8 | Push reverse gear wheel (30) with needle roller bearing (31) onto main shaft (25) | Lubricate needle roller bearing (31) and thrust collar on reverse gear gear wheel (30). | |
9 | Heat tapered roller bearing (32) to approx. 100 °C and push on | Adjust tapered roller bearing (32) to zero axial play. | |
Temperature measuring device (measuring range -200°C to +1000°C) | |||
Heating plate | |||
10 | Push on sleeve (36) | ||
11 | Push on sun gear (37) | The sleeve (36) is only installed in the case of tapered roller bearings (32) without a collar. | |
The chamfer on the internal toothing of the sun gear (37) must point toward the tapered roller bearing (32) and the flat side must point toward the retaining ring (38). | |||
12 | Install circlip (38). | ||
13 | Turn over main shaft (25) in clamping device (34) and clamp securely | | |
14 | Push 1st gear wheel (23) with needle bearing (24) onto main shaft (25) | Lubricate needle roller bearing (24) and thrust collar on 1st gear gear wheel (23). | |
15 | Install synchronizer ring (22) | The synchronizer rings (22 and 15) are different. | |
16 | Oil annular spring (21), insert into synchronizer cone (20) and press into synchronizer ring (22) | ||
17 | Push on synchronizer body (19) | ||
18 | Install circlip (17) with zero clearance | If necessary, install a new circlip (17) with another thickness. | |
19 | Install sliding sleeve (18). | The long chamfer must face the output end. | |
20 | Oil annular spring (14), insert into synchronizer cone (16) and press into synchronizer ring (15) | ||
21 | Install synchronizer ring (15) with synchronizer cone (16) and annular spring (14) | The synchronizer rings (22 and 15) are different. | |
22 | Push 2nd gear wheel (13) with needle roller bearing (12) onto main shaft (25) | Oil the needle roller bearing (12) and thrust collar at the 2nd gear wheel (13). | |
23 | Heat washer (11) to approx. 100 °C and push on | Temperature measuring device (measuring range -200°C to +1000°C) | |
Heating plate | |||
24 | Install circlip (10) with zero clearance | If necessary, install a new circlip (10) with another thickness. | |
25 | Push 3rd gear wheel (8) with needle roller bearing (9) onto main shaft (25) | Oil the needle roller bearing (9) and thrust collar at the 3rd gear wheel (8). | |
26 | Oil annular spring (7), insert into synchronizer cone (5) and press into synchronizer ring (6) | ||
27 | Install synchronizer ring (6) with synchronizer cone (5) and annular spring (7) | ||
28 | Push on synchronizer body (4) | ||
29 | Install circlip (2) with zero clearance | If necessary, install a new circlip (2) with another thickness. | |
30 | Heat tapered roller bearing (1) to approx. 100 °C and push on | Adjust tapered roller bearing (1) to zero axial play and grease with multipurpose grease. | |
Temperature measuring device (measuring range -200°C to +1000°C) | |||
Heating plate | |||
31 | Install sliding sleeve (3). | The long chamfer must face the output end. | |
32 | Assembling the shift unit (33) | ||
33 | Fix sliding sleeve (29) in neutral | For fixing in position insert a piece of paper (arrow) under the sliding sleeve (29). | |
34 | Mount shift unit (33) on main shaft | ||
35 | Assemble transmission |
Test and adjustment values for gear set
Number | Designation | Transmission | ||
BE26.50-N-1001-01C | Axial play of locking rings | mm | < 0.08 | |
BE26.50-N-1004-01C | Wear limit between synchronizer cone and sliding sleeve | mm | < 0.3 | |
Tensioning device
315 589 02 31 00
Repair materials
Number | Designation | Order number |
BR00.45-Z-1008-06A | Silicone-based grease | A 001 989 28 51 10 |