Snowmobile Polaris 600 IQ Widetrak (2017 year). Manual - part 22

91

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” (.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. 

See page 57.

8. Reinstall the gasket and cover.

92

MAINTENANCE

Lights

Removing Halogen Bulbs

Tip: Do not touch 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.

1. Remove the plenum 

covering from the 
headlight assembly. Lift 
the rubber boot to expose 
the bulb.

2. Push down on the spring 

to release it from the 
housing.

3. With the wire harness 

attached to the bulb, 
withdraw the bulb from 
the housing.

4. Grasp the bulb by its 

metal base and carefully 
separate the bulb from 
the harness.

Spring

Harness

Bulb

93

MAINTENANCE

Lights

Installing Halogen Bulbs

1. Hold the bulb by its metal base and install it into the wire harness.

2. Insert the bulb into the housing.

3. Connect the spring to the housing.

4. Carefully flip the spring back into the housing, placing it around the 

wire harness.

5. Reinstall the plenum covering on the headlight assembly.

6. Adjust headlight aim. See page 30.

Replacing Taillight Bulbs

1. Remove the screws securing the taillight cover and remove the 

cover.

2. Remove the taillight lens.

3. Push the bulb in and twist it counterclockwise to remove it.

4. Install the new bulb.

5. Reinstall the taillight lens.

6. Reinstall the taillight cover.

94

MAINTENANCE

Electrical System

RELAY LABEL

FUSE LABEL

ITEM POWERED

START SOLENOID
RELAY

Ground side of start solenoid

CHASSIS
RELAY

SPARE 20A

None

ACCESSORY
EMERGENCY
SPARE 30A

Accessory plugs

CHASSIS
30A

High beams

Low beams

Handwarmers

Thumbwarmer

Passenger handwarmers

Work light

Tail lamp

Brake lamp

Alternator coils

EFI
RELAY

EX. SENSOR
GAUGE 20A

Exhaust sensor

Gauge

Accessory projector beam relay

Diagnostic plug

IGNITION 20A

Ignition relay power

EFI
20A

Cam phase sensor

ECU hold-on power

Forward limit switch

Start relay coil

Chassis relay coil

Ignition relay coil

Fuel pump relay coil

Fan relay coil

Fuel pump relay power

PTO injector

MAG injector

IGNITION RELAY

PTO ignition coil

MAG ignition coil

FUEL PUMP RELAY

Fuel pump

FAN RELAY

Radiator fan