Measure the brake drum inside diameter. Check the runout of the brake drum using a dial indicator.
ITEM | Standard value | Service limit |
Inside diameter mm (in.) | 254 (10) | 256 (10.08) |
If the brake drum inside diameter is greater than the service limit, replace the brake drum.
Measure the brake shoe lining thickness.
Standard value | Service limit | |
Lining thickness mm (in.) | 4.5 (0.18) | 1.5 (0.06) |
If the brake lining thickness is less than the service limit, replace the brake shoe.
Inspect the brake lining and drum for proper contact.
Inspect the outside of the wheel cylinder for excessive corrosion and damage.
