Schwinn Motor Scooters 50GR06BL manual Rear Drum Brake Adjustment, Check Rear Drum Brake Shoe Wear

Page 14

Routine Care and Maintenance, continued

REAR DRUM BRAKE ADJUSTMENT

• Test the rear brake lever free play. Apply light

1

 

 

2

pressure to the left brake lever until you feel the

 

 

 

2a Pivot Pin

brake engage. There should be very little free play

 

 

 

 

 

 

Brake

between the “at rest” position of the brake lever

 

 

 

 

 

 

Adjustmentj

and the applied position of the brake lever.

 

 

 

 

 

 

Nut

Acceptable free play is between 3/8" and 3/4" (Fig.

 

 

 

 

1). Keep the brake cable adjusted to maintain

 

Between

acceptable free play.

 

3/8" and 3/4"

 

 

 

 

• Use a wrench to adjust the brake adjustment nut on the rear wheel (Fig. 2). Tighten as necessary until the correct freeplay is established.

NOTE: If you tighten the nut too much, the rear wheel will “drag”, even if the brake is not applied.

Make sure the brake adjustment nut is in the correct position after adjusting. The curved side of the nut must rest snugly against the pivot pin (Fig 2a). Check brake operation.

CHECK REAR DRUM BRAKE SHOE WEAR

As the drum brake shoe linings wear, freeplay in the brake lever will increase. Each time the brake adjustment nut is tightened to decrease freeplay in the brake lever, the brake wear indicator will move to a position closer to the minus (–) sign (Fig. 3).

The indicator should never reach the minus sign. Brake shoes should be inspected and replaced by a QUALIFIED MECHANIC before the indicator reaches the minus sign. The brake shoe must be replaced before the lining reaches the minimum allowed thickness of 0.06" (1.5 mm). The brake drum must never measure larger than 3.892" (99.0 mm) in diameter.

CHECK FRONT DISC BRAKE FLUID LEVEL

Locate the front brake master cylinder under the housing near the right handlebar (Fig. 4). If the fluid level in the window is at or below the low-level mark, take the scooter to your dealer for service.

CHECK FRONT DISC BRAKE PAD WEAR

As the disc brake pads wear, the depth of the notches in the disc brake pads will decrease (Fig. 5). NOTE: The disc rotor has been removed for clarity in Fig. 5. The disc rotor is shown in place in Fig. 5a.

Never allow the notches to wear away completely. Brake pads should be inspected and replaced by a QUALIFIED MECHANIC while the notches are still visible. The brake pads must be replaced before the pads reach the minimum allowed thickness of 0.072" (1.85 mm). The minimum allowed thickness for the disc rotor is 0.118" (3.0 mm).

WARNING

Never allow the front disc brake notches to wear away completely.

Never allow the rear drum brake pad indicator to reach the minus sign.

Even if working properly, the brakes should be inspected by your dealer at the intervals listed in the Professional Maintenance Schedule on page 17.

3REAR DRUM BRAKE

Time to replace

brake shoe

4

Master

Cylinder

5FRONT DISCI BRAKE

5a

Time to replace

brake shoes

12

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Contents Gas-powered Scooter Model 50GR06BL and 50GR06SV Table of Contents Introduction SpecificationsSafety Precautions Vehicle RecordSafety Precautions Stay Visible on the Road Wear EYE and Face ProtectionWear Protective Clothing Features ControlsInstrumentation Engine Stop Switch and Starter Button Right Handlebar Description of FeaturesKEY, Ignition SWITCH, Steering LOCK, Seat Lock and Fuel CAP Headlight and Turn Signal Left HandlebarBrakes VIN Badge and Access PlateThrottle Right Handlebar Grip Kick StarterBefore Every Ride Starting the ScooterAutomatic Choke Kick Start Electric StartBreaking In the Scooter Riding the ScooterRefueling Routine Care and MaintenanceTire Maintenance Check Front Disc Brake Fluid Level Rear Drum Brake AdjustmentCheck Rear Drum Brake Shoe Wear Check Front Disc Brake PAD WearAdding Transmission OIL Adding Engine OILChanging the Engine OIL Changing Transmission OILReplacing the Battery Battery MaintenanceInspecting the Battery Terminals Battery DisposalReplacing the Spark Plug Cleaning or Replacing the AIR FilterReplacing the Fuse Cleaning TroubleshootingReporting Safety Defects Professional Maintenance Schedule Scooter Noise Regulation Limited WarrantyEmissions Performance Warranty Exhaust system Intake System