Brake and Air System Maintenance Instructions (Cont)
If brakeshoes are to be reused, tag on removal for reference
Unhook retaining springs (7) and remove shoe (8).
Remove brakeshoe (9).
There are two kinds of brake shoes. Model A is identified
by part number 804378 and Model B is identified by part
number 805677. Also, Model B has press marks on the
brake from one additional manufacturing step. Model A
and B brakeshoes must not be mixed on axle. If one type
of brakeshoe must be replaced by another, all brakeshoes
on that axle must be changed.
There are two types of brake chamber brackets. Model A
has the brake chamber on the front side of the bracket.
Model B has the brake chamber on the rear side of the
bracket. On both models, the brakeshoes are installed
the same way.
Install brakeshoe (1) on brake backing plate (2).
Attach retaining springs (3) to brakeshoe (1).
Hook brakeshoe (4) on retaining springs (5).
Place brakeshoe (4) on backing plate (6) and install
release spring (7).