9850043 R01 - 2017-2021 RANGER 500 / 570 Service Manual
© Copyright Polaris Inc.
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CALIPER OVERHEATS (BRAKES DRAG)
CALIPER OVERHEATS (BRAKES DRAG)
• Compensating port plugged
• Pad clearance set incorrectly
• Parking brake lever incorrectly adjusted (If Equipped)
• Brake pedal or brake lever binding or unable to return
fully
• Incorrect brake fluid level (Overfilled Fluid Reservoir)
• Parking brake left on (If Equipped)
• Residue build up under caliper seals
• Incorrect operation of brakes
– Operator using the throttle and brakes at the same
time.
– Excessive use of the brakes.
POOR BRAKE PERFORMANCE
POOR BRAKE PERFORMANCE
• Air in system
• Water in system (brake fluid contaminated)
• Caliper or disc misaligned
• Caliper dirty or damaged
• Brake line damaged or lining ruptured
• Worn disc and/or friction pads
• Incorrectly adjusted stationary pad
• Worn or damaged master cylinder or components
• Damaged brake pad noise insulator
• Brake pads dragging
• Brake caliper dragging
BRAKES LOCK
BRAKES LOCK
• Alignment of caliper to disc
• Caliper pistons sticking
• Failed master cylinder
• Failed brake hose / line
• Improper assembly of brake system components
• Faulty distribution block (INTL models only )
GENERAL INFORMATION
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