Depending on the direction of torque supply to the friction, the disks can be driven or leading.
Some of the disks are fixed on the splines of the clutch hub, other disks are installed on the splined surfaces of the drum or gearbox housing. When the hydraulic drive piston moves away from the clutch, its hub together with the disks rotates freely relative to the drum or gearbox housing. When pressure is applied to the rear surface of the piston, the piston presses the driven and driving disks against each other, as a result of which the hub begins to rotate together with the clutch drum or remains in contact with the gearbox housing. The clutch is disengaged when the oil pressure on the rear surface of the piston drops. Under the action of the return springs, the piston returns to its original position, releasing the driven and driving disks.
The forward clutch consists of a housing welded to the input shaft, steel disks and disks with friction linings. sliding along the internal input gear. The hydraulic drive piston presses the disks against each other. The clutch is disengaged when the oil pressure behind the hydraulic drive piston drops. Under the action of the return springs, the piston returns to its original position, releasing the driven and driving disks. When oil pressure appears on the rear surface of the piston, the clutch is engaged and the internal input gear is connected to the input planetary gear. This clutch remains engaged in all forward gears.
When the automatic transmission selector lever is in neutral position "N", the forward clutch is in the disengaged position.
The direct transmission clutch consists of a piston placed in the housing, a ring with pressure and release springs, steel disks and disks with friction linings. This clutch is used to engage the 2nd gear and reverse gear.
The 1st gear and reverse clutch is used to engage one of these gears. It consists of a piston, expansion spring, steel discs and discs with friction linings.
Valve box, oil pump and forced-reverse switching mechanism parts:
1 — valve box-oil pump assembly housing;
2 - gaskets;
3 — shield;
4 - forced reverse switching mechanism;
5 — oil pump drive shaft;
6 — bearing;
7 - sealing rings;
8 - oil pump parts;
9 — oil pump cover;
10 - cork;
11 - ball diameter 9.5 mm;
12 - balls with a diameter of 6.3 mm;
13 — bushing;
14 — forced reverse switching stop;
15 — forced reverse shift cable;
16 — oil seal;
17 — sealing ring;
18 — output shaft;
19 - retaining rings;
20 — oil supply and drainage pipeline to the cooler;
21 — oil line fittings;
22 - drain pipe.
Visitor comments