CITROEN DS 19 - Adjustment

DS 19 OPERATION No. DS 314-0 : Checking and adjustments on the clutch control. Op. DS 314-0 167
PARTICULAR POINTS
Checking the clutch cylinder for leakage (test bench 2290-T).
The clutch cylinder should be free from leakage under a pressure of 1,070 p.s.i. (75 kg/cm
2
).
Checking the clutch (test bench 2290-T).
6 Put the manual control in the “engaged” position.
8 With a tension of 72 ft/lb (1 m.kg) exerted on the starting handle with a torsion spanner the clutch should disengage when a pressure of 425
p.s.i. (30 kg/cm
2
) is applied in the clutch cylinder.
Checking the clutch pressure (test bench 2290-T).
9 Build up the pressure in the clutch cylinder to 570 p.s.i. (40 kg/cm
2
) then let it drop very slowly.
Raise the pressure again to the exact moment when the clutch slips with a tension of 7 2ft/lb (1 m.kg) being applied on the starting handle.
The difference between this pressure and that in paragraph 8, should not be greater than 98 p.s.i. (7 kg/cm
2
).
Check the hydraulic gear selector pressure (test bench 2290-T).
This test should be carried out with a warm engine, the springs of the clutch engagement control and the accelerated idling control
unhooked. Apply the parking brake.
12 Connect the clutch cylinder feed pipe to a pressure gauge 0-1,500 p.s.i. (0-100 kg/cm
2
) the second opening of the test bench pump connected
to a pressure gauge 0-3,000 p.s.i. (0-200 kg/cm
2
). Using the test bench pump, raise the pressure in the clutch cylinder to 995 p.s.i. (70
kg/cm
2
).
13 Put the manual clutch control in the normal running position.
With the engine running at 550 r.p.m. (revolution counter) engage first gear, the pressure should be 420 p.s.i. (29 kg/cm
2
) minimum.
14 Stop the engine. The pressure should increase to 530 to 690 p.s.i. (37 to 48 kg/cm
2
); the needle of the pressure gauge should swing between
these two figures.
15 Start the engine. The pressure should drop to 420 p.s.i. (29 kg/cm
2
) minimum.
IMPORTANT - During each operation the pressure in the clutch cylinder should not drop below 570 p.s.i. (40 kg/cm
2
).
Adjustment of the clutch drag (revolution counter).
This check should be carried out with the engine warm, the car on a level surface the springs of the clutch engagement control and the
accelerated idling control unhooked, the clutch clearance being set (1 to 2 mm).
19 By accelerating very slowly, movement should commence between 700 and 750 r.p.m. If movement commences at a speed less than 700
r.p.m. tighten the adjusting screw. Untighten the adjusting screw if movement commences at a greater speed than 750 r.p.m. The end of
the screw should be at a distance of 17 to 25 mm from the end of the body.