DS 19 OPERATION No. DS 231-4 : Work on the pulleys and belts. Op. DS 231-4 157
TOOLS
REPLACEMENT OF THE WATER PUMP BELTS
Removal.
1 Loosen the screws fixing the dynamo and tie-rod. Move the dynamo as far as possible towards the engine.
Disengage the 1st belt by passing it between the blades of the fan. Bend one fan blade slightly.
Special care should be taken in very cold weather, the fan is more fragile when cold. Disengage the 2nd belt by
passing it first into the front groove of the pulley . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 mm box spanner
14 mm spanner
Assembly.
NOTE - Our Spare Parts Department sell these belts in sets of two. The belts are paired and their dimensions are
identical, for this reason: it is necessary to renew both belts even if one is in good condition.
2 Put the belts in position by passing them between the fan blades.
3 Adjust the tension of the belts (see Op. DS 231-0).
Tighten the screw of the dynamo tie-rod. Tighten the screw fixing the dynamo . . . . . . . . . . . . . . . . . . . . . . . . 12mm box spanner
14 mm spanner
REPLACEMENT OF THE HIGH PRESSURE PUMP BELTS
Removal (see Pl. 45).
4 Remove the dynamo and water pump belts (see paragraph 1, this operation).
5 Put the auxiliary clutch control in the disengaged position (push towards the front, then upwards, in order to lock it
in this position).
6 Loosen the front nut (1) of the clutch fork control rod (4). Disconnect the rod from the fork.
Do not loosen the rear nuts (2) and (3) to avoid having to re-adjust the clutch . . . . . . . . . . . . . . . . . . . . . . . . . 12 mm spanner
12 mm box spanner
7 Loosen the nut of the high pressure pump fixing spindle (spanner 2Z80-T, see Pl. 72, fig. 5). Loosen the nut of the
tie-rod fixing screw on the high pressure pump and on the water pump.
Remove the belt or belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Spanner 2280-T
12 mm box spanner
NOTE 1. In the case of abnormal belt wear, it may be necessary to change it and to adjust the driving pulley (see
paragraphs 12 and onwards, this operation).
NOTE 2. Our Spare Parts Department sell the belts in sets of two. The belts are paired and their dimensions are
identical, for this reason it is necessary to renew both belts even if one is in good condition (cars produced since
July 1956).
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