Schwinn Motor Scooters 50SP06RD manual Rear Drum Brake Adjustment, Check Rear Drum Brake Shoe Wear

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