Chevrolet Trax: Drum brake adjustment
Special Tools
CH-21177-A Drum to Brake Shoe Clearance Gauge
For equivalent regional tools, refer to Special Tools.
WARNING: Refer to Brake Dust Warning
- Ensure the park brake lever is in the fully released position.
- Remove the front floor console cupholder insert.
![Fig. 56: Parking Brake Cable Adjusting Nut](images/manuals/4484/index428(2).gif)
Fig. 56: Parking Brake Cable Adjusting Nut
NOTE: Use ONLY HAND TOOLS when loosening or tightening the
adjusting nut.
- Using ONLY HAND TOOLS, loosen the adjusting nut (1) completely to the
end of the front cable
threaded rod.
- Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle
.
- Remove the rear tire and wheel assemblies. Refer to Tire and Wheel
Removal and Installation .
- Remove the brake drums. Refer to Brake Drum Replacement.
![Fig. 57: Installing Drum to Brake Shoe Clearance Gauge Inside Brake Drum Diameter](images/manuals/4484/index429(2).gif)
Fig. 57: Installing Drum to Brake Shoe Clearance Gauge Inside Brake Drum
Diameter
- Position the CH-21177-A Drum to Brake Shoe Clearance Gauge to the widest
point of the brake drum
inside diameter.
- Firmly hand tighten the set screw on the CH-21177-A Drum to Brake Shoe
Clearance Gauge.
![Fig. 58: Positioning Drum to Brake Shoe Clearance Gauge Over Brake Shoe Assembly](images/manuals/4484/index430(2).gif)
Fig. 58: Positioning Drum to Brake Shoe Clearance Gauge Over Brake Shoe
Assembly
- Remove the CH-21177-A Drum to Brake Shoe Clearance Gauge from the brake
drum and position it
over the corresponding brake shoe assembly at its widest point.
- While holding the CH-21177-A Drum to Brake Shoe Clearance Gauge in
position, insert a proper feeler
gauge between one side of the CH-21177-A Drum to Brake Shoe Clearance Gauge
, and the
corresponding brake shoe lining.
- Rotate the brake shoe adjuster screw until the brake shoe linings
contact the CH-21177-A Drum to Brake
Shoe Clearance Gauge and the feeler gauge. Refer to Drum Brake Component
Specifications.
- Repeat the above steps for the opposite brake drum and brake shoe
assembly.
- Install the brake drums. Refer to Brake Drum Replacement.
- Adjust the park brake. Refer to Parking Brake Adjustment (Drum Brake) .
- Install the rear tire and wheel assemblies. Refer to Tire and Wheel
Removal and Installation .
- Lower the vehicle.
- Install the front floor console cupholder insert.
READ NEXT:
DRUM BRAKE SYSTEM DESCRIPTION AND OPERATION
System Component Description
The drum brake system consists of the following:
Drum Brake Shoes
Applies mechanical output force, from hydraulic brake wheel c
SPECIFICATIONS
FASTENER TIGHTENING SPECIFICATIONS
Fastener Tightening Specifications
BRAKE COMPONENT SPECIFICATIONS
Brake Component Specifications
BRAKE SYSTEM SPECIFICATIONS
Brake System Specific
SEE MORE:
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
Review Strategy Based Diagnosis for an overview of the diagnostic
approach.
Diagnostic Procedure Instructions provides an overview of each diagnostic
category.
DTC Descriptors
D
Removal Procedure
WARNING: Refer to Brake Dust Warning .
Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle
.
Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and
Installation .
Remove the rear wheelhouse panel liner. Refer to Rear Wheelhouse Liner
R