DS 19 OPERATION No. DS 330-3 : Overhauling a gearbox. Op. DS 330-3 206
TOOLS
c) To adjust the setting of the front bearing. Carry out the same procedure as in paragraph 28 “e” or “f”.
30 To assemble the intermediate train (see Pl. 52):
Place in the box the intermediate train and the 1st speed loose pinion (85) together with its sliding pinion (86).
Put the sliding pinion in the 1st speed position in order to obtain an approximate centring of the intermediate
train and of the loose pinion.
31 To assemble the 1st speed fork in the groove of the sliding pinion
Position the fork so that the articulating spindle in the lever is towards the front and the large boss of the lever
is towards the casing (see Pl. 57 for position). Do not fit the pin for the lever and swivel the latter towards the
rear of the box.
32 To assemble the reverse gear layshaft (see Pl. 54, fig. 2)
Make sure that the screw (87) is in the spindle (29).
Smear this screw with Hermetic when fitting. Offer up the spindle (29) in its bearings; position the hole for the
spindle locking screw (27) towards the front. With the sliding pinion (89) in position, the groove for the fork
should be towards the rear.
Fit in the bore of the pinion (88), the needle bearing cages and a thrust bearing (30) at each end. (The ground
face against the pinion).
Put the assembly in position on the spindle, measure the end play with a set of feelers.
Determine the thickness of the adjusting shims (31), in order to obtain a clearance of between 0.05 mm and
0.20 mm.
Fit the shim in front of the pinion between the pinion and the thrust bearing.
Tighten the pointed screw (27) and the locknut.
33 To assemble the bevel pinion shaft (see Pl. 52)
NOTE - On cars produced before October 1957, it is necessary to fit the mainshaft before the bevel pinion
(see following paragraph).
Engage the bevel pinion (25) in the intermediate gear train.
In order to fit the roller bearing in the bore of the casing, (use the mandrel MR-3676-30) (see Pl. 65, fig. 2).
Fit an adjusting shim, for example : 3.7 mm thick, then the bearing (35) on the end of the bevel pinion . . . . . Mandrel MR-3676-30
IMPORTANT - 1. It is necessary to fit split adjusting shims.
2. If the nut (12) was retained by a lockwasher, do not refit either this nut or the lockwasher. Obtain from our
Spare Parts Department, a new nut with a thin collar No. DS 344-5.
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