HYDRAULIC AND PARK BRAKE SYSTEMS
Brake Pads and Caliper
2005 HUV4420 Gasoline and HUV4420-D Diesel Vehicle Maintenance and Service Manual
Page 5-5
5
BRAKE PADS AND CALIPER
See General Warning, Section 1, Page 1-1.
FRONT BRAKE PAD AND CALIPER REMOVAL
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WARNING
• If at any point in this procedure the hydraulic system is opened, the brakes must be bled after
the correct reinstallation of the brake components. Failure to bleed the brakes could result in
decreased braking performance due to air being trapped in the hydraulic system. Use only
DOT 5 brake fluid. See Bleeding the Hydraulic Brake System on page 5-22.
• Prior to servicing hydraulic brakes, thoroughly clean the vehicle, paying particular attention
to areas immediately surrounding hydraulic connections, to prevent dirt or debris from
entering system.
Noise and chatter – clicking or
scraping sound upon brake
application, continued
Worn brake pads
Replace the brake pads.
See Brake Disc
and Hub on page 5-10.
Foreign material embedded in brake pads
Replace the brake pads.
See Brake Disc
and Hub on page 5-10.
Brake discs are cracked or scored
Replace the brake discs.
See Brake Disc
and Hub on page 5-10.
All brakes drag
Binding brake pedal
Replace bushings and adjust. Also
replace any bent or damaged
components.
See Section 6 –
Accelerator and Brake Pedal
Assemblies.
Soft or swollen rubber parts caused by
incorrect or contaminated brake fluid
Replace master cylinder.
See Master
Cylinder and Reservoir on page 5-20.
Rear brakes drag
Binding park brake cables
Adjust or replace cables.
Improper brake adjustment
See Park Brake Adjustment on
page 5-23.
Also
See Park Brake Wheel
Cables on page 5-24.
One brake drags
Improper park brake adjustment
See Park Brake System on page 5-23.
Sticking caliper pistons
Replace the caliper.
See Brake Pads and
Caliper on page 5-5.
Bent or distorted brake pads
Replace the brake pads.
See Brake Pads
and Caliper on page 5-5.
Worn front or rear wheel bearings
Adjust or replace front wheel bearings.
See Brake Disc and Hub on page 5-10.
Damaged hydraulic line
Replace brake lines as required.
See
Hydraulic Line Replacement on
page 5-17.
TROUBLESHOOTING GUIDE
SYMPTOM
POSSIBLE CAUSES
CORRECTIVE ACTION
Summary of Contents for HUV4420
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