DS 19 OPERATION No. DS 330-3 : Overhauling a gearbox. Op. DS 330-3 199
TOOLS
17 To strip the intermediate train (see Pl. 53, fig. 2).
Disconnect the 2nd speed intermediate pinion (44), the 3rd and 4th speed intermediate pinion (45).
Take out the driving pins (46).
18 To dismantle the differential (see Pl. 54, fig 1).
Uncouple the crown wheel from the differential housing.
Disengage the planet wheel (47), the spindles for the satellite wheels, the satellite wheels (48) and their thrust
washers (49), the other planet wheel (47).
Remove the taper roller bearings from the differential housing and from the crown wheel (extractor 1750-T,
split collet and ring 1753-T and thrust block 1742-T, see Pl. 61, fig. 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 mm box spanner
Extractor 1750-T
Split collet and ring
1753-T
Thrust block 1742- T
19 To strip the differential shafts (see Pl. 54, fig. 1):
a) Unscrew the screw (50) retaining the nut (51), locking the bearing (52) on the shaft. Remove the nut (spanner
1770-T, see Pl. 63, fig. 4).
Drive out the shaft assembly and disc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Spanner 1770-T
b) Remove the screw (53) retaining the nut (54) locking the bearing (52) in the housing. Remove the nut (spanner
1771-T, see Pl. 63, fig. 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Spanner 1771-T
c) Remove the oil (55) by means of a screwdriver.
Drive out the bearing (52) from the housing.
d) To remove the assembly of the retaining washer and thrust washer. Heat the thrust washer (83) (200
0
C
approximately) with a blow pipe fitted with a 150 to 250 litre nozzle. Assist the removal of the thrust washer
with a screwdriver if necessary, (use this method only if the washer is to be renewed).
20 To strip the cover plate (see Pl. 55)
a) To remove the selector control cylinders (cars produced before March 1957, see fig. 2 and 6).
Remove the fixing clamps (56).
Remove the plates (57) and the adjusting packings (58).
Remove the cylinder and pipe assemblies.
Remove the adjusting washers (59) from the cylinders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 mm box spanner
b) To remove the selector control cylinders (cars produced since March 1957, see fig. 1):
Remove the cylinder fixing clamps (20), (end piece 1773-T, see Pl. 64, fig. 6).
Remove the clamp adjusting washers (99).
Remove the cylinder and pipe assemblies.
Remove the adjusting washers (59) from the cylinders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . End piece 1773-T
c) Take out the screws fixing the forks so that they slide freely on the shaft. Check that all the shafts are in the
neutral position.
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