User Guide

52
53CHAPTER THREE Inspection, Adjustment & Lubrication
Introduction
The braking mechanism of an internal or drum
brake is inside a hub, but it is actuated by a hand
lever. The lever is connected to the brake by a
cable. This system consists of several parts:
• Brake lever
• Brake cable and housing
• Rear hub
Inspection
Every month check that the brake cable clamp
bolt is tight.
Every month check the brake cables on your bike for kinks,
rust, broken strands, and frayed ends, and check the housing
for bent ends, cuts, stretched coils, and wear. Replace any part
which does not pass inspection.
Adjustment
To decrease lever movement
1. Loosen the locknut on the barrel adjuster (Figure 3.7.6) and
turn the barrel adjuster.
To increase the lever travel, turn the screw in (clockwise). To reduce the
lever travel, turn the screw out (counter-clockwise).
2. After adjustment, tighten the locknut to hold this adjustment.
Rear wheel removal
To remove the rear wheel, you must first disconnect the shift
and brake cables.
To disconnect the brake cable
Be careful not to touch the rear hub which may be hot from braking.
1. Press the cable carrier arm (Figure 3.7.6) forward, and the
cable clamp bolt rearward, so the bolt aligns with the larger
diameter hole in the carrier.
2. Pull the cable clamp bolt outward to disengage it from the carrier.
3. Slide the brake cable stop forward to remove it from the
brake arm.
4. Undo brake strap bolt.
Internal, or drum, brakes
Figure 3.7.6 Internal drum brake
Barrel adjuster
Cable
clamp
bolt
Cable
carrier
arm
Brake Systems