Polaris Timbersled ST 120 RAW 2019 Owner's Manual page 47

BRAKE FLUID
The brake fluid level can be seen through a plastic sight glass in the brake
reservoir. If the fluid is sufficient, the sight glass will be black. If the sight glass is
any color other than black, add brake fluid.
Replace brake fluid at least every two years with DOT 4 high temperature brake
fluid, or an equivalent product.
After opening a bottle of brake fluid, always discard any unused portion. Never
store or use a partial bottle. Brake fluid is hygroscopic, meaning it rapidly
absorbs moisture from the air. The moisture causes the boiling temperature of
the brake fluid to drop, which can lead to early brake fade and the possibility of
Keep the master cylinder cover free of dirt and debris. The vent slits allow for
diaphragm movement, and if they become plugged, movement of brake fluid
below the diaphragm may be restricted, altering brake function.
Brake fluid will damage labels, paint and some plastics. Always wipe up spills
WARNING
accident or serious injury.
WARNING
NOTICE
immediately.
MAINTENANCE
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