Primary shaft
Disassembly, inspection and assembly of the primary shaft are completely analogous to the same operations for the primary shaft of gearboxes RS5F30A and RS5F31A.
Secondary shaft
Disassembly
Disassembly of the secondary shaft has the following features compared to the RS5F30A/31A gearboxes. After measuring the axial clearance of the gears, remove the rear bearing retaining ring, the half-ring holder and the half-rings. Then press off the rear bearing using a universal puller and remove the spacer sleeve. Further disassembly is carried out in the same way as in the gearboxes RS5F30A/31A.
Examination
The main difference between the RS5F30A/31A and RS5F32A gearboxes is the design of the 2nd and 3rd gear synchronizers, so only the synchronizer check is described here. The check of the remaining components of the secondary shaft is performed in the same way as for the gearboxes RS5F30A/31A.
WARNING: The front secondary shaft bearing must be replaced with a new one each time. The bearing must not be reused.
Synchronizers. Measure the gap between the synchronizer locking ring and the gear ring gear (for 1st and 4th gear synchronizers).
Nominal clearance:
- 1st gear synchronizer - 0.95-1.45 mm
- 4th gear synchronizer - 0.90-1.45 mm
The maximum permissible gap is 0.7 mm.
Check the degree of wear of the 2nd and 3rd gear synchronizer rings as follows.
Install the inner locking ring into the synchronizer cone.
Align the ring with the cone and measure distance A.
Install the outer locking ring onto the synchronizer cone.
Align the ring with the cone and measure distance B.
Nominal values:
- A (inner ring) — 0.7-0.9 mm
- IN (outer ring) — 0.6-1.1 mm
Wear limit: 0.2 mm.
If the distance A or B is less than the maximum allowable, replace the locking ring.
Assembly
1. Install the needle bearing, driven gear and 1st gear synchronizer ring.
2. Press on the 1st and 2nd gear synchronizer hub using the ST22452000 tool. The hub must be positioned in a certain way relative to the shaft.
3. Install the 2nd gear synchronizer cone, outer and inner rings, reverse driven gear (synchronizer clutch).
4. Install the steel ball, 2nd gear driven gear and 2nd and 3rd gear bushing.
Before installing the bushing, lubricate it with transmission oil.
Before installing the ball, apply a general purpose grease to it. The sleeve has a groove into which the ball must fit.
5. Install the 3rd gear driven gear, synchronizer cone, outer and inner rings.
6. Press on the 3rd and 4th gear synchronizer hub using the ST22452000 tool. The hub must be positioned in a certain way relative to the shaft.
7. Install the 3rd and 4th gear synchronizer sleeve and the 4th gear synchronizer locking ring.
8. Install the steel ball, bushing and 4th gear driven gear.
Before installing the ball, apply a general purpose grease to it.
The sleeve has a groove into which the ball must fit.
9. Press the 5th gear driven gear onto the shaft using the ST37750000 tool.
10. Select the secondary shaft bearing spacer sleeve.
- Size C - 230.15-230.25 mm
Available bushings are listed in the section "Data for adjustments and control".
11. Press the rear bearing onto the shaft using the ST37750000 drift.
12. Select half rings that fit into the shaft groove with a gap of 0-0.1 mm. Available ring thicknesses are given in the section "Data for adjustments and control".
13. Install the half ring holder and retaining ring.
14. Measure the axial clearance of the gears.