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5 - 36
BRAKES
ROTOR (Continued)
Fig. 63 Minimum Brake Rotor Thickness (Typical)
1 - ROTOR MINIMUM THICKNESS MARKING
2 - ROTOR
Minimum allowable thickness is the minimum
thickness which the brake rotor machined surface
may be cut to.
CAUTION: Do not machine the rotor if it will cause
the rotor to fall below minimum thickness.
Before lathe installation, verify the brake rotor
face and the hub adapters are free of any chips, rust,
or contamination.
When mounting and using the brake lathe, strict
attention to the brake lathe manufacturer's operating
instructions is required.
Machine both sides of the brake rotor at the same
time. Cutting both sides at the same time minimizes
the possibility of a tapered or uneven cut.
When refacing a rotor, the required TIR (Total
Indicator Reading) and thickness variation limits
MUST BE MAINTAINED. Extreme care in the oper-
ation of rotor turning equipment is required. Specifi-
cations for brake rotor machining can be found in
this sections specification table. (Refer to 5 -
BRAKES/HYDRAULIC/MECHANICAL/ROTOR
SPECIFICATIONS)
REMOVAL
REMOVAL - FRONT
NOTE: Before proceeding, (Refer to 5 - BRAKES -
WARNING)(Refer to 5 - BRAKES - CAUTION).
(1) Raise and support vehicle. (Refer to LUBRICA-
TION & MAINTENANCE/HOISTING - STANDARD
PROCEDURE)
(2) Remove tire and wheel assembly.
NOTE: In some cases, it may be necessary to
retract caliper piston in its bore a small amount in
order to provide sufficient clearance between shoes
and rotor to easily remove caliper from knuckle.
This can usually be accomplished before mounting
bolts are removed, by grasping rear of caliper and
pulling outward working with guide pins, thus
retracting piston. Never push on piston directly as
it may get damaged.
(3) Remove two bolts securing disc brake caliper
adapter to steering knuckle (Fig. 64).
Fig. 64 Front Caliper With Adapter Mounting To
1 - BRAKE ROTOR
2 - BRAKE CALIPER/ADAPTER ASSEMBLY
3 - MOUNTING BOLT
4 - KNUCKLE
-
(4) Remove disc brake caliper and adapter from
knuckle as an assembly (Fig. 64). Hang assembly out
of way using wire or a bungee cord. Use care not to
overextend brake hose when doing this.
(5) Remove clips retaining brake rotor to wheel
studs (Fig. 65).
(6) Remove brake rotor (Fig. 65).
REMOVAL - REAR
NOTE: Before proceeding, (Refer to 5 - BRAKES -
WARNING)(Refer to 5 - BRAKES - CAUTION).
(1) Raise and support vehicle. (Refer to LUBRICA-
TION & MAINTENANCE/HOISTING - STANDARD
PROCEDURE)
Knuckle
CS
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