Norton Commando Workshop Manual

## Brakes, Weels and Tyres

# H

2 | With the help of a second operator apply both the top and bottom operating levers (B) fully, and adjust the length of the link rod by slackening the link rod locknut (G) and screwing the link rod (H) in or out until with the linings still in contact with the drum the clevis pin can be refitted.
3 | Securethe link rod locknut.
4 | If necessary, carry out final adjustment on the cable adjuster.
5 | NOTE: should the adjustment run out at the handlebar and cable adjusters, providing the brake Iinings are examined to ensure that the rivets are not flush with the lining friction surface, the operating cam levers can be reversed to regain adjustment.

### FRONT BRAKE (Disc Type)

The disc brake functions by the pressure of friction pads against the disc attached to the front wheel hub. As the brake handlebar lever is applied, brake fluid from the master cylinder reservoir is forced through the brake line to the caliper to force the friction pads against the disc.
The brake requires no adjustment since wear on the pads is compensated for by extra brake fluid passing from the master cylinder reservoir into the system.
Note that the stoplamp switch must be adjusted as in Section J18.
The rear brake cable is fitted instead of a brake rod to cope with the flexibility of the engine cradle and swinging arm relative to the main frame on which the rear brake pedal is mounted. For this reason under no circumstances must a rod be substituted for the rear brake cable.

### SECTION H11

### REAR BRAKE ADJUSTMENT

The rear brake is a single leading shoe unit and apart from centralising the shoes in the brake drum when the wheel has been disturbed, adjustment is carried out purely on the cable. Refet to Fig. H4.

The rear brake is adjusted by means of the cable adjuster at the operating lever. When the brake is fully applied the operating lever should be approximately in the position shown in brokon lines in the illustration. If excessive brake lining wear brings the lever past this position and there is no adjustment left, the brakes should be relined.
After adjustment the wheels should rotate freely. Any tendency to bind will dissipate power and generate heat which will adversely affect the efficiency of the brakes.
To centralise the brake shoes in the drum and thus achieve maximum braking efficiency, slacken wheel spindle nut (A) apply the rear brake fully and hold on whilst the spindle nut is retightened. Refer to Fig. H4

### SECTION 12

### OVERHAULING DRUM BRAKES

The rear brake of all Commando models is of the single leading shoe variety whereas the front brake (on models without the disc brake option) is of the double leading shoe type. The routine for changing brake shoes is detailed separately below for the rear brake, twin leading shoe front brake and twin leading shoe type with available high performance support plate. When sufficient wear has taken place on the brake linings, the shoes complete with linings or the linings only must be renewed. Linings separate from the brake shoes are not

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