Pioneer 1200 Maintenance Service Manual page 51

MC012C-AS00 TRANSAXLE: HYDRAULIC AND PARK BRAKE SYSTEMS
TROUBLESHOOTING GUIDE
SYMPTOM
Vehicle pulls to one side, continued
Pulsating brake pedal
Decreasing brake pedal travel
Noise and chatter – Squealing, clicking
or scraping sound upon brake
application
All brakes drag
Troubleshooting Guide continued on next page...
2003 Pioneer 1200/1200SE Gasoline Vehicle Maintenance and Service Manual
POSSIBLE CAUSES
Grease or brake fluid on the brake shoe
linings
Loose or distorted brake cluster backing
plate
Scored or warped brake drums
Water on the brake shoe linings
Sticking wheel cylinder piston
Faulty suspension parts
Warped brake drums
Bent axle
Worn or damaged front wheel bearings
Weak or broken brake shoe return springs
Sticking wheel cylinder piston
Overly adjusted brake adjusters
Improperly adjusted park brake
Bent, damaged or incorrect brake shoes
Worn out brake shoes
Foreign material embedded in brake shoe
linings
Broken brake shoe return springs or hold
down springs
Rough, grooved or dry brake shoe ledges
or backing plate bosses
Brake drums are cracked or scored
Binding brake pedal
Soft or swollen rubber parts caused by
incorrect or contaminated brake fluid
Brake System Troubleshooting
CORRECTIVE ACTION
Replace hub, axle seal or wheel cylinder
and replace the brake shoes. See Brake
Shoe Removal on page 6-8.
Tighten or replace the backing plate and/
or hardware.
Replace the brake drums. See Brake
Drum Removal on page 6-6.
Apply the brakes several times to dry the
brake shoe linings.
Replace the wheel cylinder. See Wheel
Cylinder Replacement on page 6-19.
See Section 7 – Steering and Front
Suspension, or Section 9 – Rear
Suspension.
Replace the brake drums. See Brake
Drum Removal on page 6-6.
Replace the axle. See Section 16 –
MC012C-AS00 Unitized Transaxle with
Differential Lock.
Replace bearings. See Section 7 –
Steering and Front Suspension.
Replace return springs.
Replace the wheel cylinder. See Wheel
Cylinder Replacement on page 6-19.
Adjust brake adjusters. See Brake Shoe
Adjuster Replacement on page 6-21.
Adjust park brake. See Park Brake
Adjustment on page 6-35.
Replace the brake shoes. See Brake
Shoe Removal on page 6-8.
Replace the brake shoes. See Brake
Shoe Removal on page 6-8.
Replace the brake shoes. See Brake
Shoe Removal on page 6-8.
Replace damaged parts.
Lubricate the bosses of the brake cluster
backing plate, and/or replace the brake
shoes. See Brake Cluster Inspection
and Cleaning on page 6-10. See Brake
Shoe Removal on page 6-8.
Replace the brake drums. See Brake
Drum Removal on page 6-6.
Lubricate and adjust. See Section 5 –
Accelerator and Brake Pedal
Assemblies.
Replace master cylinder. See Master
Cylinder Removal on page 6-29.
6
Page 6-5