Clutch Clearance

Clutch clearance
1. Measure the forward clutch clearance.
1) Install the forward clutch in the oil pump, and set the dial gauge.





2) Secure the forward clutch by lightly pressing down with a press, etc.





3) Apply compressed air to the part indicated in the figure and let the forward clutch piston stroke three times.

Air pressure:
392-441 kPa (4.0-4.5 kgf-cm2, 57-63 psi)

4) Apply compressed air and operate the forward clutch piston. Read the value when the indicator of the dial gauge stops.
5) Release the compressed air and read the dial gauge when the forward clutch piston is not operating.
6) Calculate the forward clutch clearance according to the following formula:
Step (4) value - Step (5) value = Forward clutch clearance.





7) Measure the clearances at four locations (90 degrees apart) by following the steps from (3) to (6). Verify that the average value is within the specification below.

Forward clutch clearance:
1.50-1.80 mm (0.059-0.071 in)

2. If not as specified, replace parts as necessary.