DS 19 OPERATION No. DS 142-6 : Overhauling an accelerated idling control assembly (cars produced since January 1959). 114
TOOLS
DISMANTLING (see Pl. 28, fig. 1 and 2).
1 Remove the support (14) of the spring (13) from the body of the control assembly.
2 Remove the support (14) and the spring (13) from the lever (26).
3 Remove the adjusting screw (15), the spring (27) and the washer (28), from the lever (26).
4 Disengage the dust cover (21) from the cap (22) and from the lever (26).
5 Unscrew the cap (22) holding the assembly by its support and remove the assembly of the cylinder (23) and the
piston (24). Disengage the seal (29) between the cylinder and the body. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27-28 mm spanners
6 Disengage the piston (24) from the cylinder (23). Remove the seal (25) from the cylinder (23) using a small
brass wire hook.
7 Remove the bleed screw (30), from the body of the control assembly.
8 Clean the parts with alcohol only. Do not use trichlorethylene.
ASSEMBLY see Pl. 28, fig. 1 and 2).
NOTE – In the case of slight scratches being found on the piston, a light rubbing with No. 600 abrasive paper
smeared in alcohol is permitted. Clean with alcohol and blow with compressed air.
When refitting the parts, they should be smeared with hydraulic fluid..
9 Put the ring seal (25) in position and fit the piston (24) in the cylinder (23).
10 Put the cylinder piston in the cap (22), fit the seal (29) in the body of the control assembly and screw the cap (22) 27-28 mm spanners
on the body.
11 Put the dust cover (21) in position on the cap (22) and the lever (26).
12 Fit the lever (26), the washer (28), the spring (27) and the adjusting screw (15).
13 Put the spring (13) in position on its support (14). Engage the support in the body of the assembly.
14 Fit the bleed screw (30).
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