Automatic transmission repair
Attention: Repair of automatic transmission Transporter T4 requires special equipment and instruments.
In the absence of special experience, the gearbox can be damaged even during disassembly. The information below is intended for specialists, as well as for the general development of everyone. The modernization of the automatic transmission took place at the turn of 1996/97, so be careful when using illustrations.
On fig. 357 shows the automatic transmission control unit. On production models up to 1996, this assembly has a similar design (there is no assembly 12a). On fig. 362 shows the design of the secondary (output) shaft. Adjustment rings (13) are available in thicknesses from 1.00 to 2.70 mm in increments of 0.025 mm. Adjustment rings (21) are available in thicknesses from 1.60 to 2.55 mm in 0.025 mm increments.
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358 Automatic transmission hydraulic valve panel - models since 1996 1 - pallet, 2 - gasket, 4, 6, 7 - oil seals, 5 - pillar, 12 - valve block, 13 - M6x15 bolt, 14 - M5x55 bolt
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359 Automatic transmission housing - production models before 1996 1 - left half of the housing, 2 - bushing, 3 - filler plug (magnetic) M24x1.5, 4 - M8x75 bolt, 5 - M8x35 bolt, 6 - nut, 11 - right half of the body assembly, 12 - cover with stuffing box, 13 - stuffing box, 14 - cap, 15 - breather, 16 - plug, 17.18 - button, 19 - sleeve, 21, 24 - spring, 22, 38 - M6x15 bolts, 23 - parking mechanism drive lever, 25, 37 - washer, 26 - lock washer, 27 - axle, 28 - wheel locking mechanism, 29 - guide plate, 30 - support plate, 31 - M6x20 bolt, 32 - lever shaft, 33 - sector, 34 - switching lever, 35 - pin, 36 - hook, 39 - control lever, 40, 42 - levers, 41 - bolt locking bracket, 43 - M6x32 bolt, 44 - pallet, 45, 49 - gasket, 46 - bushing, 47 - M6x20 bolt, 48 - cover, 49 - cover, 50 - M6xl5 / M6x8 stud bolt, 51 - oil dipstick tube, 52, 58, 64, 70 - oil seals, 53 - M6x15 bolt, 54 - oil dipstick ( transmission), 55 - oil pump, 56 - oil seal, 57 - gasket, 59 - bolt, 60 - bar, 65 - bracket, 68 - speed sensor, 69 - gasket, 71 - M6x15 bolt
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360 Automatic gearbox housing - models since 1996 1 - left half of the housing, 2 - bushing, 3 - filler plug (magnetic) M24x1.5, 4 - M8x75 bolt, 5 - M8x35 bolt, 6 - M8 nut, 11 - right half of the body, 12 - cover with stuffing box, 13 - stuffing box, 14 - plug, 15 - breather, 16, 17 - button, 18 - bushing, 19 - lever, 20 - M6x32 bolt, 21 - pan, 22 - gasket, 23 - pipe / fluid drain plug, 24 - sealing ring, 25 - M6x15 bolt with M6x8 stud, 29 - oil level check tube plug, 30 - oil level check tube, 31, 39, 42 - oil seals, 35 - body, 36 - cover, 37 - bracket, 38 - M6x20 bolt, 40 - transmission control unit sensor, 41 - speedometer sensor, 43 - M6x15 bolt
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361 Oil pump, drive for switching automatic transmission modes - models up to 1996 release 1 - oil pump, 2, 11 - oil seals, 3 - bushing, 4 - pump gears, 6 - bolt M6x14 type Top, 7, 9, 10 - rings, 8 - spacer washer, 12 - gasket, 13 - M6x27 bolt
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362 Oil pump, automatic transmission mode switch drive - models from 1996 release 1 - oil pump, 2, 11 - oil seals, 3 - bushing, 4 - pump gears, 6 - bolt M6x14 type Top, 7, 9, 10 - rings, 8, 23 - spacer, 12 - gasket, 13 - M6x27 bolt, 20 - axle, 21 - parking mode lever, 22 - spring, 24 - lock washer, 25 - M6x20 bolt, 26 - leading bracket, 27 - driven bracket, 28 - parking mode wheel mechanism, 30 - control lever, 31 - pin, 32 - washer, 33 - M6x15 bolt, 34 - shift lever, 35 - fastener locking bar, 36 - lever, 37 - M6x15x11.5 bolt, 38 - spring , 39 - pressure sector, 40 - thrust, 41 - switching lever
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363 Automatic transmission output shaft - models of all years 1 - secondary shaft, 2, 12, 20 - bearings, 3 - sealing ring, 5, 6 - oil seal, 7 - thrust bearing, 8 - parking mechanism, 9 - cover, 10 - M8x25 bolt, 13, 21 - adjusting rings, 14 - M27x1.5 nut, 16 - intermediate shaft, 17 - thrust bearing, 18 - cover 19 - M36x1.5 bolt
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364 Gear mechanism for forward and reverse automatic transmission - models before 1996 release 1 - planetary gear, 2 - oil seal, 3 - thrust bearing, 4, 22 - adjusting rings, 5, 31, 32 - intermediate discs, 6, 33 - friction disc, 7 - end plate, 8 - rear gear, 9 - clutch, 10 - roller, 11 - retaining ring, 12 - central gear wheel, 13, 16 - thrust rings, 14, 17, 20 - thrust roller bearings, 15 - drive casing, 18 - drive shaft / central gear of the gearbox, 19 - bearing separator, 21 - drive shaft / support of the side wheels of the gearbox, 23 - sealing ring, 24 - M8x22 bolt, 25, 27 - thrust bearings, 26 - switch 3 / 4 gears, 28 - switch 1-3 gears, 29 - reverse switch, 30 - casing-caliper, 34 - elastic (wave-like) ring, 35 - pusher, 36 - spring, 37 - adjusting ring, 38 - fluid coupling, 39 - nut M10xl, 40 - stuffing box.
Adjustment rings (4) and (22) are available in thicknesses from 1.00 to 1.90 mm thick, in 0.1 mm increments. Rings (37) are available in thicknesses from 1 mm to 1.8 mm in increments of 0.2 mm and are marked in color: light blue (1 mm), reduced green, no mark, black, gray (1.8 mm)
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365 Oil pump, automatic transmission shift drive - models since 1996 1 - planetary gear, 2 - oil seal, 3 - thrust bearing, 4, 22, 34a, 37 - adjusting rings, 5, 31, 32, 32a - intermediate discs , 6, 33 - friction disc, 7 - end plate, 8 - rear gear, 9 - clutch, 9a - ring, 9b - spring, 10 - roller, 11 - retaining ring, 12 central gear wheel, 13, 16 - thrust rings, 14, 17,20 - thrust roller bearings, 15 - drive housing, 18 - drive shaft, 19 - bearing separator, 21 - drive shaft, 23 - sealing ring, 24 - M8x22 bolt, 25, 27 - thrust bearings, 26 - 3/4 gear switch, 26a - thrust ring, 26b - oil seal, 28 - 1-3 gear switch, 29 - reverse switch, 30 - caliper casing, 34 - elastic (wave-shaped) ring, 35 - pusher, 36 - spring, 38 - fluid coupling, 39 - M10xl nut, 40 - stuffing box
Adjusting rings (4) and (22), as well as (37) - see note to the previous fig. Rings (34a) are available in thicknesses from 1.00 to 1.75 mm in increments of 0.25 mm.
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366 Automatic transmission control unit and its sensors - production models from 1996 1 - microprocessor module, 2,3, 11 - mounting brackets, 4 - starter relay, 5 - relay board, 6 - speedometer sensor, 7, 9, 15 - oil seals , 8 - multifunction switch, 10, 13, 14 - clamps, 12 - clamp, 16 - harness / valve block connectors, 20 - M8 nut, 23 - M6x55 bolt, 24 - M6x20 bolt, 25 - M8x15 bolt, 26 - solenoid , 27 - starter circuit blocker