7-2. SERVICE BRAKE SYSTEM MAINTENANCE
a. Disk Brakes.
This task covers inspection of disk brakes. Inspect disk
brakes after every 250 hours of operation or every month, whichever occurs first.
TOOLS: Automotive Mechanics Tool Kit
M a c h i n i s t s s t e e l r u le
Outside micrometer, one inch capacity
(a) At each wheel end, measure thickness of lining on each brake pad using
m a c h i n i s t s s t e e l r u l e.
(b) Thickness of each lining must be more than 0.100 inch. If lining thick-
ness is not 0.100 inch, replace linings (page 7-19).
(c) Thickness of lining in each caliper must be approximately equal. If lin-
ing thickness is not equal, caliper is leaking at one side and must be
replaced (page 7-28).
(d) Measure thickness of each disk .
(e) Each disk must be at least 0.500 inch thick. If disk is not at least
0.500 inch thick, notify direct support maintenance (disk must be re-
p l a c e d ).
(f) Check disks for deep grooves and warpage.
If disk has deep grooves or
warpage, notify direct support maintenance (disk must be replaced).