TM 5-3805-291-23-1
THEORY OF OPERATION - CONTINUED
0003 00
BRAKE AND HYDRAULIC FAN SYSTEM - CONTINUED
(1)
Each individual service brake uses an
indicator pin to help determine amount
of wear on an existing service brake disc.
(2)
Oil groove depth is a critical dimension.
If oil groove depth on a brake disc is too
shallow, oil flow will be inadequate,
causing wear and abrasion.
(3)
An indicator pin is located on each side
of front and rear axle center housings.
When a service brake disc wears, dis-
tance between piston and plate
decreases, causing indicator pin to move
closer to flange face of axle housing.
427-C1775
0003 00-100