9
9850043 R01 - 2017-2021 RANGER 500 / 570 Service Manual
© Copyright Polaris Inc.
9.19
9. Remove the fasteners attaching the lower A-arm to
the frame and remove the lower A-arm from the
vehicle.
10. Examine A-arm and bearing carrier bushings and
pivot tubes (see “Exploded View”). Replace if worn.
Discard hardware.
WARNING
The locking agent on the existing bolts was destroyed
during removal. DO NOT reuse old hardware. Serious
injury or death could result if fasteners come loose
during operation.
11. If not replacing the A-arm, thoroughly clean the a-
arm and pivot tubes.
12. Insert new A-arm bushings and pivot tubes into the
new A-arm.
INSTALLATION
1. Install lower A-arm assembly onto vehicle frame.
Torque NEW fasteners to specification.
TORQUE
Control Arm Fasteners:
40 ft-lbs (54 Nm)
2. Attach lower A-arm to bearing carrier. Torque NEW
fastener to specification.
TORQUE
Bearing Carrier Fasteners:
40 ft-lbs (54 Nm)
3. Route the brake line over the top of the lower A-arm
and secure it in the retainer
q
.
4. Install upper A-arm assembly onto vehicle frame.
Torque new fasteners to specification.
TORQUE
Control Arm Fasteners:
40 ft-lbs (54 Nm)
5. Attach upper A-arm to bearing carrier. Torque new
fastener to specification.
TORQUE
Bearing Carrier Fastener:
40 ft-lbs (54 Nm)
6. Reinstall the lower portion of the shock and stabilizer
linkage to the upper A-arm. Torque shock / linkage
fastener to specification.
TORQUE
Shock / Linkage Fastener:
40 ft-lbs (54 Nm)
7. Install wheel and torque wheel nuts to specification.
TORQUE
Steel Wheel Lug Nuts:
36 ft-lbs (49 Nm)
Aluminum Wheel Lug Nuts:
30 ft-lbs + 90º (41 Nm + 90º)
WARNING
Upon A-arm installation completion, test vehicle at low
speeds before putting into service.
STEERING / SUSPENSION
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