Chapter 2- Drive System: CVT and Transfer Case
22
DRIVE SYSTEM ADJUSTMENT: PARKING BRAKE
NOTE: The parking brake is mounted to the
transfer case, and its operation is completely
independent of the hydraulic service brakes.
1. The parking brake has two functions:
1a. It should prevent the vehicle from rolling
when it is applied.
1b. It should not drag when released.
2. Parking brake operation should be checked at
each oil change interval. If the operator notices
any change in operation of the parking brake, it
should be checked before any further use.
NOTE: When the engine is turned-off, the CVT
will not stop the vehicle from rolling, even if the
transfer case is left in gear. The parking brake is
essential to safe operation of the vehicle.
3. Visual inspection of the brake system should
accompany adjustment. Look for:
• Indications of dragging brake:
- burning smell
- discolored park brake rotor
- sluggish performance
- a ccelera ted brake pa d w ea r
- slack cable when brake is released.
• Indications of impending failure
- corroded or frayed cable
- excessive travel on park brake lever before
- brakes engage
- worn brake pads: <
.030” friction material
thick ness (<
.762mm)
- burnt, kinked, or chafed cable housing
- loose hardware or damaged brackets
- mechanical damage to rotor or caliper
4. Repair any of these issues before proceeding
with adjustment. Adjustment should be checked
after any service to the parking brake caliper of
linkage.
5. Checking caliper adjustment: See Figure 2.31.
5a. Chock the wheels so that the vehicle will
not roll.
5b. Release the parking brake.
5c. Confirm that the return spring has drawn
the arm on the caliper all the way against
the stop.
5d. Use a feeler gauge to check the clearance
between the parking brake rotor and one
of the pads. It may be necessary to wig-
gle the rotor slightly, forcing the pads back
from the rotor.
5e. Clearance should be between .010” and
.013” (.254mm-.330mm).
5f. Adjust the caliper if it is not in this range.
Figure 2.31
Parking brake
caliper
Feeler gauge
.010-.013 (.254-.330mm)
Adjustment screw
and jam nut
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