Note. The section describes the complete disassembly of the gearbox: input shaft, output shaft and differential, which is necessary for the overhaul of the gearbox. To eliminate a specific malfunction, it is enough to limit ourselves to dismantling only the elements necessary for this.
To perform repair work on disassembling the gearbox, you will need:
- impact screwdriver;
- beard
- expanding pliers for removing retaining rings;
- magnet on a telescopic pointer;
- two mounting blades;
- two-jaw and three-jaw pullers;
- chisel;
- punch;
- micrometer and dial gauge (when replacing the differential bearing adjusting ring);
- locksmith ruler;
- adhesive fixative;
- sealant.
Removing the gearbox from the engine (see "Gearbox - removal and installation"), we clean it of dirt and wash it from the outside with detergent, diesel fuel or kerosene.
Device, gearbox diagram: 1 - rear cover of the gearbox housing; 2, 44 - nut; 3 - fifth gear drive gear; 4 - thrust plate; 5, 40 - bearing lock ring; 6 - ball bearing of the primary shaft; 7 - the drive gear of the fourth gear; 8 - gearbox housing; 9 - input shaft; 10 - third gear drive gear; 11 - second gear drive gear; 12 - reverse gear; 13 - drive gear of the first gear; 14 - roller bearing; 15 - breather; 16 - input shaft seal; 17 - clutch housing; 18 - roller bearing of the secondary shaft; 19 - oil collector; 20 - main gear drive gear; 21 - plastic drive gear of the speed sensor drive; 22, 32 - drive gland; 23, 30 - differential tapered roller bearing; 24 - speed sensor drive; 25 - differential box; 26 - differential satellite; 27 - axis of the satellites; 28 - side gear; 29 - driven gear of the main gear; 31 - adjusting ring; 33 - driven gear of the first gear; 34 - synchronizer of the first and second gears; 35 - driven gear of the second gear; 36 - driven gear of the third gear; 37 - synchronizer of the third and fourth gears; 38 - driven gear of the fourth gear; 39 - ball bearing of the secondary shaft; 41 - bushing; 42 - driven gear of the fifth gear; 43 - fifth gear synchronizer