When removing the hydraulic distributor, if the gearbox is clean enough, simply immerse it without disassembling it in a suitable cleaning solution, then dry it under a stream of compressed air and check the integrity of the solenoid valve wiring.
Before disassembling the hydraulic distributor, it is especially important to read the description of the procedure for carrying out the work.
- Remove the bolts securing the cover to the distributor.
- Remove the shift sequence solenoid valve mounting bolts (1. Fig. 7.16) and electromagnetic modulating valve (3).
- Remove the solenoid valves and transmission fluid temperature sensor from the distributor assembly.
Fig. 7.16. Solenoid valves: 1 - electromagnetic valves of gear shift sequence; 2 - distributor; 3 - electromagnetic modulating valve; 4 - end plate; 5 - distributor cover mounting bolts
- Clean all parts thoroughly.
- Installation of electromagnetic valves is carried out in the reverse order of removal.
- Tighten all bolts to the specified torques.
Note: Each shift sequence solenoid valve is installed in a separate socket - do not mix them up.
Fig. 7.17. Hydraulic block-distributor: 1 - distribution plate; 2 - distributor; 3 - end plate; 4x - 3-4 gear shut-off valve (VC 3/4); 5 - 3-4 gear shut-off valve plug; 3 - pressure regulating valve (VRP); 7 - spring of the pressure regulating valve (VRP); 3 - Valve Spring Compression Regulator (VPR); 9 - spring compression regulator (R2); 10 - spring R2; 11* - valve R2; 12 - valve R1; 13 - spring R1; 14* - valve R3; 15 - spring R3; 16 - safety valve (CS); 17 - 1st gear forced engagement valve; 18 - electromagnetic valve filter; 19x - valve 2-3 gears (VC 2/3); 20 - Shift Spool (VSA); 21& - shift valve B (VSB); 22 - Shift Spool C (VSC); 23& - Shift Spool P (VSP); 24 - control valve; 25 - electromagnetic valve (EVM); 26 - temperature sensor; 27 - Shift Spool Valves (EL); 28 - sealed connector; 29 - solenoid valve mounting bolts (EVM); 30 - plunger of the pressure regulating valve (VRP); 31 - control spool linkage. Valves 11 and 14 are identical. & Valves 21 and 23 are identical. x Valves 4 and 19 are identical