Renault Laguna III, Manual

Page: 2386 / 3699

37A
-
52
MECHANICAL COMPONENT CONTROLS
Clutch circuit: Bleed
PK4 or TL4
37A
a
Prefill the hydraulic tappet using the new syringe (by
gravity).
a
Refit the part(s) concerned.
V - BLEED PROCEDURE AFTER A REMOVING A
COMPONENT OF THE HYDRAULIC CIRCUIT.
a
Keep the clutch pedal in the upper position using a
strap attached to the steering wheel to ensure conti-
nuity of the hydraulic circuit during the bleed opera-
tion.
a
Remove the bleed plug from the clutch slave cylin-
der.
a
Connect a transparent pipe of sufficient length to the
bleed hole (at least thirty centimetres) in order to
place it at the same height as the reservoir.
a
Open the bleed screw.
a
Fill the brake fluid master cylinder reservoir until
brake fluid flows out of the bleed screw.
a
Connect a new syringe containing 60 ml of ap-
proved brake fluid to the end of the transparent pipe.
a
Slowly inject the entire contents of the syringe into
the hydraulic clutch circuit without injecting any of
the air from the top section of the syringe.
a
Close the bleed screw.
a
Remove the transparent pipe from the bleed hole.
a
Refit the bleed plug.
a
Top up the brake fluid level in the master cylinder
reservoir.
a
Disengage and engage the clutch quickly around
twenty times.
a
Check that the clutch system is operating correctly.
a
Repeat the bleed operation if necessary.
a
Check the adjustment of the switch. (see 37A , Me-
chanical component controls , Clutch pedal
switch: Removal - Refitting , page 37A-43 ) (37A,
mechanical control elements).
141809
Note:
Take care not to disrupt the adjustment of the
clutch start of travel switch.
Note:
The transparent pipe must remain at the same
height as the master cylinder reservoir to prevent
air from entering inside the clutch circuit.