Reduction Brake Preinspection
Reduction Brake PreinspectionBrake operation
1. Set the direct clutch drum onto the transaxle case.
Caution: Applying compressed air to the assembled clutch pack for longer than 3 s at a time will damage the seal. Do not apply compressed air for more than the aforementioned time when testing the system.
2. Inspect the brake operation by applying compressed air as shown.
Air pressure:
392 kPa (4.0 kgf-cm2, 57 psi) max.
3. If not as specified, replace parts as necessary.
Brake clearance
Measure the reduction brake clearance.
1. Set the dial gauge to the reduction brake.
2. Set the measuring point of the dial gauge to the retaining plate.
3. Apply compressed air to the part indicated in the figure and let the reduction brake piston stroke three times.
Air pressure:
392 kPa (4.0 kgf-cm2, 57 psi) max.
4. Apply compressed air and operate the reduction brake piston. Read the value when the indicator of the dial gauge stops.
5. Release the compressed air and read the dial gauge when the reduction brake piston is not operating.
6. Calculate the reduction brake clearance according to the following formula: Step (4) value-Step (5) value= reduction brake clearance.
7. Measure the clearances at four locations (90° apart) by following the steps from (3) to (6). Verify that the average value is within the specification below.
Reduction brake clearance:
1.50-1.80 mm (0.059-0.070 in)
8. If not as specified, replace parts as necessary.