DS 19 OPERATION No. DS 334-3 Work on the gear control. Op. DS 334-3 238
TOOLS
b) New model gear change speed control with flat base.
Assemble the parts in the following order
1 filter (57).
1 distance piece (60).
1 disc with a central hole (58).
1 distance piece (60).
1 disc with an eccentric hole (59) etc.
For information, there are in the gear change speed control
15 distance pieces.
8 discs with a central hole
7 discs with an eccentric hole.
Tighten the screw (56).
27 Put the spring (54) in the body of the change speed control. Put the piston (53) in position, smeared with hydraulic
fluid, the screw engaged in the spring.
28 Put a ring seal (61) on each plug. Fit the plugs (the plug (52) with the slotted end should be fitted by hand; if not,
the spring is out of position). Do not reverse the plugs (51) and (52) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 mm box spanner
NOTE - The adjustment of the flow of the change speed control can be carried out on the hydraulic unit test bench
2298-T (see Pl. 176) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Test bench 2298-T
OVERHAULING A HYDRAULIC GEAR SELECTOR
IMPORTANT REMARK - In the case of difficult gear engagement, it is necessary to carry out the following
checks before removing the hydraulic gear selector
A - Make sure that the engine adjustments are correct
Adjust the slow running (see Op. DS 142—0).
Adjust the clutch clearance (see Op. DS 314-0, paragraphs 20 to 23).
Adjust the clutch drag (see Op. DS 314-0, paragraphs 18 and 19).
Adjust the clutch engagement control (see Op. DS 314-0, paragraphs 24 to 26).
B - Make sure that the hydraulic gear selector and the gear change speed lever assembly are correctly set
(see Op. DS 334—1).
C - If the 2nd gear will not engage (by moving from 1st to 2nd gear) and if 2nd gear jumps out by pressing lightly
on the lever towards the 1st gear position, it is necessary to check the gear lever (play on the rivets assembling
the washers forming the selector sate).
To Next Page
Loading...
