Frelander 2. Manual — part 354
Clutch Controls -
Torque Specifications
Description
Nm
lb-ft
Clutch bleed screw
10
7
Clutch pedal box nuts
24
18
Clutch slave cylinder bolts
11
8
Clutch Controls - Clutch Controls
Description and Operation
COMPONENT LOCATION
Item
Part Number
Description
1
-
Brake/clutch reservoir
2
-
Brake master cylinder
3
-
Connector
4
-
Low pressure hose
5
-
Clutch pedal bracket
6
-
Clutch master cylinder
7
-
High pressure hose
8
-
Connector
9
-
Clutch slave cylinder and release bearing
10
-
Hydraulic adaptor and peak torque limiter
11
-
Bleed screw
12
-
Clutch pedal
13
-
Brake pedal
OVERVIEW
The clutch is a conventional single, damped driven plate and a self-adjusting diaphragm spring clutch cover assembly
which is hydraulically actuated from the clutch pedal.
Pressing the clutch pedal pressurizes the hydraulic fluid in the master cylinder. The fluid pressure is transferred via a pipe
from the master cylinder to the slave cylinder in the transmission. The fluid pressure operates the slave cylinder which in
turn pushes the fingers of the clutch cover, releasing the driven plate and disengaging the drive from the engine crankshaft
to the transmission.
A hydraulic clutch bleed adaptor is located on the front of the transmission. The adaptor provides the connection between
the pressure pipe from the master cylinder to the slave cylinder. The adaptor contains a bleed screw to purge the clutch
hydraulic system of air after service replacement of one of the hydraulic components. The adaptor also includes a peak
torque limiter. This prevents instant clutch engagement if the driver accidentally releases the clutch lever to prevent
damage to the driveline components.
Stop/Start Vehicles - From 2010 MY
Clutch Master Cylinder and Linear Clutch Sensor
The linear clutch sensor, located on the clutch master cylinder and hardwired to the CJB, is used to sense the position of
the clutch pedal. It is used in conjunction with other sensor outputs to trigger an engine restart, engine stop or stall
recovery on Stop/Start vehicles. It is also used along with the first and reverse gear switches to complete clutch
plausibility.
A magnet inside the clutch master cylinder provides the position indicator for the linear clutch sensor. For this reason, if
the master cylinder is replaced the correct replacement master cylinder must be identified and fitted.
For additional information, refer to:
Starting System
(303-06C Starting System - TD4 2.2L Diesel, Vehicles Built From:
01-03-2009, Description and Operation).
Linear Clutch Sensor
Clutch Controls - Clutch Controls
Diagnosis and Testing
Principles of Operation
For additional information.
REFER to:
Manual Transaxle and Clutch
(308-00 Manual Transmission/Transaxle and Clutch - General Information,
Diagnosis and Testing).
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