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REAR BRAKE ASSEMBLY
(2 - 4 PASSENGER ONLY)
(e2, e4, eS, eL)
DESCRIPTION
The rear brakes consist of a spindle, wheel
cylinder, park brake actuator lever, drum and
shoes. It is mounted on flanges at each end of the
rear axle. The park brake actuator lever is
connected by cables to the park brake lever.
Fig. 5 Rear Brake Breakdown
(*indicates serviceable part)
1 - Drum*
2 - Drum mounting bolt(s)
3 - Wheel cylinder bolts
4 - Bleed screw
5 - Wheel cylinder*
6 - Upper spring
7 - Mounting/Backing plate
8 - Retention pin clips
9 - Retention pins
November 2007
10 - Actuating lever
11 - Outer spring*
12 - Spacer
13 - Spacer mounting bolt and nut
14 - Lower shoe retainer
15 - Lower Spring
16 - Brake shoe*
17 - Spindle
OPERATION
When pressing on the brake pedal, pressure forces
the brake fluid through the brake line from the
master cylinder to each wheel cylinder. The wheel
cylinder has two pistons, each of which engage a
brake shoe. Fluid pressure pushes the pistons out,
causing the brake shoes to press against the brake
drum.
When the park brake lever is engaged, it pulls on
the cables to the park brake actuator lever, which
engages the two brake shoes. Movement of the
park brake actuator forces the brake shoes to press
against the brake drum.
The friction of the shoes against the drum causes
the drum and wheel to stop turning.
REMOVAL
1. Raise and support the vehicle on a suitable
hoist.
2. Remove the hubcap.
3. Remove the tire and wheel assembly.
4. Remove the cotter pin and clevis pin attaching
park brake cable to actuator lever on brake
drum.
5. Remove the park brake cable from actuator
lever.
6. Using a flare nut wrench, remove 17mm brake
line from the wheel cylinder and allow fluid to
drain into suitable container for disposal.
7. Remove the four 13mm bolts attaching the
brake assembly to the axle end flange.
8. Remove the rear brake assembly.
BRAKES
4 - 7
GEM Service Manual
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Do you have a question about the GEM E Series and is the answer not in the manual?
Questions and answers
Cart starts and shuts down as soon as I syart to acceleratw Wait a second or two and the sequence repeats
Possible causes for a Polaris GEM E Series cart starting and then shutting down immediately when accelerating include:
1. Faulty Contactor – If voltage on the black/green wire does not drop from 72V to 0V when the accelerator is pressed, the contactor may need to be replaced.
2. Failed Motor Controller – If error code 51 appears, the motor controller may have failed due to a shorted motor.
3. Shorted Motor – If the motor has shorted windings, it could cause the controller to fail and shut down operation. Inspect the motor for burnt windings or shorts.
4. Burnt Contactor Points – A voltage drop test across the contactor points can reveal excessive resistance, which may indicate burnt points that need replacement.
To diagnose, check the contactor operation, inspect the motor and controller for faults, and test for voltage drops at key points.
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Witam potrzebuje regulator obrotów silnika Polaris gem 72v
The motor speed controller for the Polaris GEM E Series 72V is referred to in the service manual. If you need to locate or replace it, refer to the circuit diagrams and troubleshooting charts in the manual. If the controller needs replacement, follow the diagnostic steps outlined under Drive and Power System Error Codes.
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