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Dismantling of a primary shaft of a transmission
Disassembly of the primary shaft of a transmission 1 - the bearing (gear side 4th gear);
2 - a gear wheel of 4th transfer;
3 - ring of the synchronizer of 4th transfer;
4 - a lock ring;
5 - coupling hub 3rd and 4th gear assembly;
6 - ring of the synchronizer of 3rd transfer;
7 - a gear wheel of 3rd transfer; | 8 - Bearing (primary shaft end);
9 - a primary shaft;
10 - a spring latch biscuit synchronizer;
11 - sliding sleeve of the synchronizer of 3rd and 4th transfers;
12 - biscuit lock synchronizer;
13 - the coupling hub 3rd and 4th gear. |
Preliminary checks
Gap gear 3rd gear
| PERFORMANCE ORDER |  | 1. Measure the clearance between the gear 3 transfers and a gear wheel 2nd transfers. Nominal backlash: 0.05-0.20 mm
Maximum permissible backlash: 0,25 mm | | 2. If the clearance exceeds the limit, check the contact surface of the third gear transmission gear 2nd gear synchronizer sleeve and the hub of the 3rd / 4th gear. Replace worn or damaged parts. |
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Gap 4th gear transmission
| PERFORMANCE ORDER |  | 1. Measure the clearance between the gear 4th transfer and the bearing. Nominal backlash: 0,1-0,37 mm
Maximum permissible backlash: 0,42 mm | | 2. If the clearance exceeds the limit, check the contact surface of the gear wheel of 4th transfer and the bearing sleeve of the synchronizer of 3rd / 4th gear. Replace worn or damaged parts. |
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Dismantling
| PERFORMANCE ORDER | | Disassemble the input shaft in the sequence shown in the figure. |
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Bearing (gear side 4th gear)
| PERFORMANCE ORDER |  | Using a press and special adaptation OK930 175 aa0 remove the bearing from the shaft. |
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Coupling hub 3rd and 4th gear assembly, a ring of the synchronizer of 3rd transfer and gear 3rd gear
| PERFORMANCE ORDER | | 1. Remove the retaining ring. | |  | 2. Use the special tool OK930 175 008 remove the coupling hub 3rd and 4th gear assembly, a ring of the synchronizer of 3rd transfer gear and 3rd gear. | |
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Bearing (primary shaft end)
| PERFORMANCE ORDER |  | Using a special tool OK670 990 aa0 remove the bearing. |
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