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
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
- 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
- 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.
Diagnostic Fault
Up and Down Shift Enable Switch Circuit Low Voltage
Circuit/System Description
When the shift lever is placed in manual mode (M), the driver shift request ,
also known as the tap shift
function, is activated. The driver shift request allows the vehicle operator to
shift gears by pushing the plus (