NANO

DRIVETRAIN

329

DRIVETRAIN

MAINTENANCEANDREPAIRS

(a) Preliminary Inspection

Clutch needs replacement mainly on account of clutch

slippage or imperfect engagement and disengagement.

This may be due to worn out / damaged clutch parts.

It is desirable to carry out the following preliminary

checks before removal of the clutch for replacement

of the parts. Before carrying out the tests, check the

clutch cable for damage and also check for proper

position of the clutch pedal.

(b) Clutch Slippage Test

Clutch slippage can be confirmed by any of the

following two methods:

i) Drive the car in 1st or 2nd gear at maximum speed

corresponding to that gear. Keeping the accelerator

pedal pressed with your right foot, apply brake

gradually with your left foot, if the engine stalls, it

means that clutch does not slip.

ii) Drive loaded car in 3rd gear on level ground and let

the speed drop down to approximately 15 kmph.

Now press the accelerator pedal fully. With slipping

clutch, the car speed will not pick up and also

clutch burning smell will be noticed. If this does

not occur and the car picks up speed, it indicates

that clutch does not slip.

(c) Clutch Engagement And Disengagement Test

During the clutch slippage test, when the car is in

motion, depress clutch pedal fully without changing

the accelerator pedal position. If the engine speed

increases immediately, perfect clutch disengagement

is indicated. Further, release the clutch pedal

suddenly. If the car moves forward with a little jerk,

perfect clutch engagement is indicated.

(d) Clutch Pedal Travel Adjustment

1. Remove the clutch cable end from pedal hook and

adjust clutch pedal height with adjusting screw

(M6X25) located on the control mounting bracket

assembly and tighten the lock nut so that height

of clutch pedal to be at the level mentioned in the

next point.

CAUTION

This test should be carried out with utmost care

because sudden release of clutch might cause

heavy jerk & damage to the clutch lining, hence it

should not be done repeatedly.

2. The clutch pedal height should be adjusted as

shown in fig. below.