Brake System; Brake Fluid Inspection; Brake Hose And Fitting Inspection; Brake Pad / Disc Inspection - Polaris ACE 900 2017 Service Manual

BRAKE SYSTEM

BRAKE FLUID INSPECTION

Always check the brake pedal travel and inspect the
brake fluid reservoir level before each operation. If the
fluid level is low, add DOT 4 brake fluid only.
Brake fluid should be changed every two years. The fluid
should also be changed anytime the fluid becomes
contaminated, the fluid level is below the minimum level,
or if the type and brand of the fluid in the reservoir is
unknown.
The brake fluid master cylinder reservoir can be
accessed in the front storage box, under the storage bin.
1. Position the vehicle on a level surface.
2. Place the transmission in PARK.
3. View the brake fluid level in the reservoir
should be between the MAX and MIN level lines
4. If the fluid level is lower than the MIN level line, add
brake fluid until it reaches the MAX level line.
5. Install the reservoir cap and apply the brake pedal
forcefully for a few seconds and check for fluid
leakage around the master cylinder fittings and the
brake caliper fittings.
9929422 R02 - 2017-2019 ACE 900 Service Manual
© Copyright Polaris Industries Inc.

BRAKE HOSE AND FITTING INSPECTION

Check brake system hoses and fittings for cracks,
deterioration, abrasion, and leaks. Tighten any loose
fittings and replace any worn or damaged parts.

BRAKE PAD / DISC INSPECTION

1. Check the brake pads for wear, damage, or
looseness.
2. Inspect the brake pad surface for excessive wear.
3. Pads should be changed when the friction material
q
is worn to .030" (0.762 mm).
q
. The level
w
.
4. Check surface condition of the brake discs.
5. Measure the thickness of the front and rear brake
discs.
6. The disc (s) should be replaced if thickness is less
than .170" (4.32 mm).
MAINTENANCE
2
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