Polaris TRACTOR Sportsman 570 6X6 (2018 year). Manual - part 25

103

MAINTENANCE

Brake Fluid

Hand Brake

The master cylinder is located 

on the left handlebar. Maintain 

the fluid level 6 mm below the 

top edge of the master 

cylinder. Do not overfill.

1. Position the vehicle on a 

level surface. Make sure 

the handlebars are straight.

2. View the fluid level 

through the indicator 

window (eye) on the top of 

the master cylinder. The 

eye will appear dark when 

the fluid level is full. When 

fluid is low, the eye will be 

clear.

3. Add the recommended fluid as needed. Do not overfill.

Master 

Cylinder

Indicator 

Window

Full

Low

104

MAINTENANCE

Brake Fluid

Foot Brake

Check the brake fluid level 

frequently for the foot brake 

system. The foot brake fluid 

reservoir is located under the seat.
1. Position the vehicle on a level 

surface.

2. Remove the seat.
3. View the fluid level in the 

reservoir.

4. Remove the cap and add the 

recommended fluid as 

needed.

5. Maintain the fluid level 

between the minimum and 

maximum marks. Do not 

overfill.

6. Reinstall the reservoir cap.
7. Reinstall the seat.

Minimum

Maximum

Brake Fluid 

Reservoir

105

MAINTENANCE

Brakes

The front and rear hand brakes are hydraulic disc brakes, activated by 

moving the single brake lever toward the handlebar. The auxiliary foot 

brakes are also hydraulic disc brakes. All brakes are self-adjusting.

Brake Inspections

Inspect brake components at the intervals outlined in the Periodic 

Maintenance Chart beginning on page 85. Check more often if brakes 

are used heavily under normal operation.
1. Always keep brake fluid at an adequate 

level. See page 102.

2. Inspect hydraulic hoses for leaks, wear 

or damage. Replace worn or damaged 

hoses promptly.

3. Check the brakes for excessive travel 

or spongy feel.

4. Check the friction pads for wear, 

damage and looseness. Replace the 

pads when the friction material is worn 

to 0.762 mm.

5. Check the security and surface condition of the disc. Clean any 

grease using a recommended brake cleaner or alcohol. Do not use 

spray lubricants or other petroleum-based products. If you discover 

any damage (cracks, excessive corrosion, warping) service is 

required before operating. Your POLARIS dealer can assist.

0.762 mm

106

MAINTENANCE

Toe Alignment

Do not attempt to adjust alignment. All steering adjustments should be 

performed by an authorized service technician. Your POLARIS dealer can 

assist.

Use the following procedure to check the toe alignment of the vehicle. 

The recommended toe alignment is 3-6 mm toe out.
1. Position the vehicle on a 

level surface.

2. Place the handlebars in a 

straight-ahead position.

3. Tie a length of string between 

two stands as shown in the 

illustration. Position the 

stands so that the string is 

flush with the side of the rear 

tire.

TIP: If available, you may use a long 

straight-edge instead of string.

4. Measure the distance from 

the string to the rim at the 

front (1) and rear (2) of the 

front rim. The rear 

measurement should be 2-3 

mm more than the front 

measurement on each side of 

the vehicle to obtain the 

recommended 3-6 mm toe 

out alignment.

5. Repeat the measurement 

procedure on the other side of the vehicle.

6. If you discover improper alignment, service is required. Your 

POLARIS dealer can assist.

String

Stand

2

1