Brake Calipers

For this scheduled maintenance procedure, see Chassis → FRONT BRAKE CALIPER or Chassis → REAR BRAKE CALIPER.

Brake Lines

For this scheduled maintenance procedure, see Chassis → BRAKE LINES.

Brake Pads

WARNING

Always replace brake pads in complete sets for correct and safe brake operation. Improper brake operation could result in death or serious injury. (00111a)

1.	Inspect for grit and debris buildup at caliper piston areas. Clean if necessary. a. Rinse area with warm soapy water. b. Dry using low-pressure compressed air.
2.	NOTE Always replace both pads in a caliper as a set. See Figure 1. Measure brake pad thickness. a. Replace brake pads (1) if friction material thickness is equal to or less than dimension. Dimension: 0.5 mm (0.02 in)

Brake Disc

NOTE

Minimum acceptable thickness is stamped on side of disc.

1.	Measure thickness. a. Measure thickness with a micrometer. b. Replace disc if disc is scored or measured thickness is less than minimum.
2.	Measure runout. a. Measure runout near outside diameter of disc using a dial indicator. b. Replace disc if runout meets or exceeds dimension. Dimension: 0.2 mm (0.008 in)

Replace disc if warped, badly scored or worn beyond service limit. See Chassis → FRONT WHEEL or Chassis → REAR WHEEL.

1	Brake pad thickness
2	Backplate
3	Brake disc thickness

Figure 1. Brake Thickness