Brake Panel and Drum
Brake Panel Assembly
Lubricate the brake camshaft.
Fit the indicator [A] on the serration so that it points to the extreme
right of the USABLE RANGE [B] (Rear panel only).
Brake Drum Wear Inspection
If the drum is worn unevenly or if it is scored, turn the drum down on
a brake drum lathe or replace the hub with a new one. (Do not turn
it down to the service limit, and do not turn it down if any diameter
measurement exceeds the service limit.)
Measure the inside diameter [A] of the brake drum. Since uneven
drum wear will decrease braking effectiveness, take measurement at
a minimum of two places.
If any diameter measurement exceeds the service limit, replace the
hub with a new one.
Brake Drum Inside Diameter
Brake Shoe Lining Wear Inspection
Visually inspect the linings for uneven wear, and ﬁle or sand down any
high spots. With a wire brush, remove any foreign particles imbedded
in the lining surface. Wash off any oil or grease with a high-ﬂash-point
solvent. Do not use one which will leave an oily residue.
If the linings are damaged or the surface cannot be restored by
sanding and cleaning, replace the shoes as a set.
Measure the thickness of the brake linings.
If the thickness [A] at any point is less than the service limit, replace
both shoes as a set.
Brake Shoe Lining Thickness