Snowmobile Polaris Widetrak LX (2015 year). Manual - part 19

78

MAINTENANCE

Brakes

Bleeding the Hydraulic Brake System

Air in the hydraulic brake system will cause spongy brake lever action. 
Bleed the system before operating the snowmobile.

WARNING! Operating the vehicle with a spongy brake lever can result in loss of 
brakes, which could cause an accident and lead to serious injury or death. 
Never operate the vehicle with a spongy-feeling brake lever.

During the bleeding procedure, keep the brake handle as level as 
possible. The reservoir must be in this position to minimize the 
possibility of air entering the system through the reservoir vent.

1. Remove brake master cylinder reservoir cover and gasket.

2. Fill the master cylinder reservoir to between the MIN and MAX 

marks or 1/4-5/16 inch (.6-.8 cm) below the lip of the reservoir 
opening. Reinstall the gasket and cover.

3. Slip a rubber tube over the ball of the bleeder valve and direct the 

flow of fluid into an approved container.

4. Squeeze the brake lever a full stroke. Then unscrew the bleeder 

valve 3/4 of a turn to release air.

5. Close the bleeder valve and release the brake lever.

6. Repeat steps 4 and 5 until fluid flows from the bleeder valve in a 

solid stream free of air bubbles.

WARNING! Overfilling the master cylinder leaves no room for fluid expansion 
and may cause the brakes to lock, resulting in serious injury or death. Always 
add brake fluid to the fill line as recommended.

7. After bleeding is complete, refill the reservoir to the proper level.

8. Reinstall the gasket and cover.

79

MAINTENANCE

Lights

Headlight Adjustment

The headlight may be adjusted for vertical aim using the following 
procedure:

1. Place the snowmobile on a level surface with the headlight 

approximately 25 feet (7.6 m) from a wall.

2. Measure the distance from the floor to the center of the headlight 

and make a mark on the wall.

3. Start the engine and turn the headlight switch to high beam.

4. Observe the headlight aim. The most intense part of the headlight 

beam should be aimed two (2) inches (5.1 cm) below the mark 
placed on the wall.

Tip: Rider weight must be included on the seat.

5. Turn the adjustment nut, located inside the hood, just below the 

headlamp opening. Turn the knob in or out as needed for proper 
aim.

2 in. (5.1 cm)

Lamp Center Height

25 ft. (7.6 m)

Adjustment 

Nut

80

MAINTENANCE

Lights

Avoid touching a halogen bulb with bare fingers. Oil from skin leaves a 
residue, causing a hot spot that will shorten the life of the lamp. If 
fingers do touch the bulb, clean it with an alcohol-moistened towel.

Headlight Bulb Replacement

1. Pinch the ends of the spring (1) 

together and lift until it releases 
from the spring retainer.

2. Lift the spring carefully around 

the wire harness (2) and flip it to 
the outside of the housing.

3. With the wire harness attached 

to the bulb (3), withdraw the 
bulb from the housing.

4. Grasp the bulb by its metal base 

and carefully separate the bulb from the harness.

5. Hold the new bulb by its metal base and install it into the wire 

harness.

6. Insert the bulb into the housing. Carefully flip the spring back into 

the housing, placing it around the wire harness.

7. Squeeze the spring together until it's over the spring retainer and 

release.

8. Verify headlight aim. See page 79.

Taillight/Brake Light Replacement

1. Remove the screws (1) securing the 

taillight housing (2).

2. Remove and replace the bulb (3).

3. Reassemble all components.

1

2

3

1

2

3

81

MAINTENANCE

Clutch System

Periodically inspect the clutch sheaves for damage, wear, or belt 
residue. To maintain optimum performance, clean with non-oil based 
cleaners such as isopropyl alcohol.

NOTICE: If you become aware of higher than normal clutch engagement or an 

unusual vibration or shift pattern, see your dealer immediately. Do not 
operate the snowmobile until repairs have been made. All clutch 
maintenance and repairs must be performed by an authorized 
POLARIS dealer. Any unauthorized modifications to clutches, such as 
adding or removing weights, will void the warranty.

NOTICE: The bushings in the weights and rollers of POLARIS clutches are 

made of a material that may be damaged if lubricated. Do not 
lubricate clutch bushings.

Clutch Alignment Offset

Clutch alignment offset is important for maintaining optimum 
performance. Please see your POLARIS dealer if you experience a 
decrease in performance.