Brake clearance

WARNING: This page is about a different variant/trim than selected.

Measure the low and reverse brake clearance.
1. Set the dial gauge to the low and reverse brake.
2. Set the measuring point of the dial gauge to the low and reverse brake piston.
  
  Fig 1: Measuring Low And Reverse Brake Clearance
  Courtesy of MAZDA MOTORS CORP.
3. Apply compressed air to the part indicated in the figure and let the low and reverse brake piston stroke three times.
  Air pressure
  
  98.1 kPa {1.0 kgf/cm ² , 14 psi}
4. Apply compressed air and operate the low and reverse 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 low and reverse brake piston is not operating.
  
  Fig 2: Applying Compressed Air To Low And Reverse Brake Fluid Passage
  Courtesy of MAZDA MOTORS CORP.
6. Calculate the low and reverse brake clearance according to the following formula:
  Step (4) value - Step (5) value = low and reverse 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:
  Low and reverse brake clearance 2.20-2.50 mm {0.087-0.098 in}
If not as specified, replace parts as necessary. (See LOW AND REVERSE BRAKE AND ONE-WAY CLUTCH INNER RACE DISASSEMBLY/ASSEMBLY .)

Fig 3: Measuring Low And Reverse Brake Clearance

Courtesy of MAZDA MOTORS CORP.