Snowmobile Polaris Widetrak LX (2015 year). Manual - part 18

74

MAINTENANCE

Fuel Filter/Fuel Lines

The fuel filter is located inside the fuel tank. This component requires 
no maintenance.

Inspect the fuel lines regularly for signs of deterioration or damage. 
Always check fuel line condition after periods of storage. Normal 
deterioration from weather and fuel compounds may occur. Replace 
worn or damaged fuel lines promptly.

NOTICE: Kinking the fuel lines or using a pliers or similar tools to remove fuel 

lines may cause damage to the lines. If a fuel line has been damaged 
or kinked, replace it promptly.

Oil Filter

The oil filter is located at the side of 
the oil tank. Have your dealer change 
the oil filter and bleed the system 
annually or every 1000 miles (1600 
km). 

Tip: The direction of the arrows indicates 

the direction of flow through the filter.

75

MAINTENANCE

Exhaust System

Check the exhaust system for wear or damage at approximately 1000 
miles (1600 km). To inspect, allow the engine and exhaust system to 
cool completely. Open the hood and inspect the muffler and pipes for 
cracks or damage. Check for weak or missing retaining springs or 
damper/support grommets.

CAUTION! Hot exhaust system parts can cause serious burns. Allow adequate 
time for the exhaust system to cool. Never perform this procedure with the 
engine running.

Drive Chain Tension

Your Widetrak is equipped with an automatic chain tensioner. No 
maintenance or inspection should be necessary.

76

MAINTENANCE

Brakes

Hydraulic Brake Inspection

Inspect the brake lever reserve before each use of the snowmobile. See 
page 41.

Brake pads must be replaced when the brake pad material becomes 
thinner than the backing plate, approximately 1/16 inch (1.5 mm). A kit 
is available for replacing brake pads. See your dealer.

WARNING! Brake failure during operation can result in serious injury or death. 
Properly functioning brakes are vital to your safety. Be sure the brake pads do 
not drag on the disc and that brake lever travel is not excessive. Always replace 
brake pads when the brake pad material becomes thinner than the backing plate 
(approximately 1/16 inch/1.5 mm).

Brake Components

1.

Brake Caliper

2.

Gearcase

3.

Brake Disc

4.

Backing Plate

5.

Brake Pad Material 
(replace when thick-
ness is less than 1/16 
inch/1.5 mm)

1

2

3

4

5

77

MAINTENANCE

Brakes

Brake Fluid

WARNING! 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 accident or severe injury.

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.

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.

We recommend the use of POLARIS DOT 4 high temperature brake 
fluid. See page 106 for the part numbers of POLARIS products.

NOTICE: Brake fluid will damage labels, paint and some plastics. Always wipe 

up spills immediately.

Replace brake fluid at least every two years.