Removing, Installing, Dissembling and Assembling Valve Body
Removing, Installing, Disassembling and Assembling Control Valve Body
Oil drain plug (4a)
Drain oil, replenish after repairs and adjust to correct level, 14 Nm.
Bolts (4)
Unscrew, screw in, 8 Nm, take off oil sump (3), check gasket.
Control valve body (A)
Remove, install by unscrewing/screwing in bolts (7, 7a)1 8 Nm, pay attention to different bolt lengths. Range selector valve (A1) must engage in driver.
Disassembly and Assembly
Note:
It is important to ensure scrupulous cleanliness when performing any work on the control valve body. If possible, the work should be performed on a plastic base. Do not use any fluffing cloths; chamois leather is best suited to this work. Following disassembly all the parts must be washed and blown dry with compressed air.
There are 19 or 18 valve balls in the control valve body. When disassembling, ensure that the balls do not roll away. During assembly, the balls must be inserted at the correct points.
A Control valve body
B Pickup housing
1 Selector valve
13 Plate check valve
24 Primary pump check valve (not featured after omission of secondary pump)
33a B2 shift valve swarf strainer
46 Control pressure control valve piston
86 LB 3 drainage valve
1. Unscrew slotted-head screws (arrows).
Note:
Pay attention to plate check valve (13).
2. Hold control valve body (A) and pickup housing (B) together and turn over
3. Lift off pickup housing (B) carefully together with intermediate plate (4)
Installation Note:
Tighten bolts only slightly so that both housing parts can still be shifted relative to each other, as far as the bolts permit.
Insert valves (13, 24, 86) and swarf strainer (33a) into the control valve body.
7 Locking valve K1
9 Check valve without bore
14 Valve balls (18 or 19)
14a Pressure valve (or a valve ball)
35 Lubricating pressure shift pin
54 check valve
81 Strainer
87 Restrictor valve K2
88 Restrictor check valve
A1 Selector valve
4. Remove all 18 or 19 valve balls (14). The valve ball marked with the number 14 is resting on a conical spring.
5. Take out valves, filter and shift pin.
Note:
a 19 balls on control valve bodies without plastic valve (14a).
b 18 balls on control valve bodies with plastic valve (14a).
1 Selector valve
3 2-3 command valve piston
4 2-3 command valve
5 Torque converter adaption control valve
7 Locking valve K1
10 Shift valve B1
11 3-4 command valve piston
12 3-4 command valve
16 Basic pressure control valve
17 1-2 command valve
18 1-2 command valve sleeve
19 1-2 command valve piston
26 Working pressure control valve
27 Lock-up clutch shift valve plug Ku
32 Full throttle control valve
33 B2 shift valve
35 Lubricating pressure shift pin
38 B1 control valve
39 B1 control valve piston
40 Kick-down shift valve
41 Governor pressure shift valve
44 Governor pressure booster valve
45 Control pressure control valve
46 Control pressure control valve piston
6. If necessary unscrew side covers from the control valve body and check that pistons and valves move freely and are free of swarf.
25 Kick-down valve (modulating pressure)
47 Shift pressure control valve
48 Pickup K1
49 Pickup K2
50 Pickup K1 control valve
51 Pickup K2 control valve
52 Pickup B1
53 Cut-in pickup
55 RV2 locking valve
56 Decelerating fuel cutoff shift valve
57 Pickup B1 control valve
58 Cut-in pickup control
59 K2 shift valve
60 B2 release valve
61 Brake circuit locking
62 RV1 locking valve
63 Kick-down pickup
64 Lubricating pressure
85 Pressure limiting valve
Installation Note:
The springs are installed either before or after the slide valve depending on the transmission type or vehicle model. For this reason, when disassembling the slide valve or pickup housing, take note of the order in which the valves and springs are inserted.
7. The arrow shows the position of the hexagon socket screw for the full throttle control pressure. The clockwise direction of rotation causes earlier wide open throttle or kick-down upshifts. The opposite direction of rotation causes later upshifts.