Table of contents: Disassembly ↓ Assembly ↓
Secondary shaft of the gearbox type 013

- 1 - clutch housing;
- 2 - pin;
- 3 - outer bearing ring;
- 4 - roller bearing;
- 5 - 4th gear pinion;
- 6 - retaining ring;
- 7 - 3rd gear pinion;
- 8 - retaining ring;
- 9 - 2nd gear needle bearing;
- 10 - 2nd gear pinion;
- 11 - synchronizer locking ring;
- 12 - synchronizer;
- 13 - secondary shaft;
- 14 - synchronizer locking ring;
- 15 - 1st gear pinion;
- 16 - inner ring of needle bearing;
- 17 - 1st gear needle bearing;
- 18 - inner ring of roller bearing;
- 19 - locking plate;
- 20 - outer bearing ring;
- 21 - gasket;
- 22 - outer ring of roller bearing;
- 23 - washer;
- 24 - bolt;
- 25 - 5th gear pinion;
- 26 - nut;
- 27 - cracker;
- 28 - spring;
- 29 - hub;
- 30 - coupling
Disassembly
1. Press off the remaining inner race of the secondary shaft rear tapered roller bearing and 1st gear pinion 15 (applying force to the 1st gear).
2. Remove needle bearing 17 and mark it.
3. Mark the position of the clutch and synchronizer hub relative to the shaft.
4. Press synchronizer 12 together with blocking rings 11 and 14 and gear 10 of 2nd gear (applying force to the 2nd gear).
5. Remove needle bearing 9 of the 2nd gear and mark it.
6. Remove retaining ring 8 and press off gear 7 of 3rd gear.
7. Remove retaining ring 6.
8. Press out gear 5 of 4th gear and remove front roller bearing 4 of secondary shaft.
Assembly
1. Install the front roller bearing 4 of the secondary shaft onto the secondary shaft.
2. Orient gear 5 of the 4th gear with the wide flange towards the drive gear of the main gear and press it onto the shaft until it stops, having first heated it to a temperature of 120°C using any available method, but without using an open flame.
3. Select the thickness of the retaining ring 6 so as to maximize the axial clearance between it and the 4th gear pinion. Spare parts are supplied with retaining rings with a thickness of 2.35; 2,38; 2,41; 2.44 and 2.47 mm.
4. Orient gear 7 of the 3rd gear with the wide flange towards the gear of the 4th gear and install it on the shaft until it stops.
5. Select the thickness of the retaining ring so as to maximize the axial clearance between it and the 3rd gear pinion. Install the retaining ring on the shaft. Spare parts are supplied with retaining rings of 1.50 and 1.60 mm thickness. 6. Install needle bearing 9 and 2nd gear gear 10.
7. Install synchronizer 12 3rd and 4th gears complete with blocking rings in accordance with the previously made marks.
8. Install needle bearing 17 and 1st gear gear 15.
9. Press on the inner ring 18 of the secondary shaft rear tapered roller bearing.
(The original article is located on the online resource: AudiManual.ru)
