Norton Commando Workshop Manual

## Brakes, Weels and Tyres

# H

### SECTION H9

### FRONT WHEEL BEARING OVERHAUL

(Drum Brake)
To gain access to the front wheel axle and bearings, remove the wheel as described in Section H8. Remove the front brake plate with shoes and proceed as follows:
1 | Unscrew the bearing lock ring (right hand thread) from the left side of the hub, using Peg Spanner 063965 Tool, or, if not available a pin punch and hammer. If the ring is an extremely tight fit, try tapping from different holes and heat the hub with a gentle flame.
2 | Lift out the felt seal and distance piece.
3 | Insert the front wheel axle from the brake side and drive with a hide mallet. This will drive the double row bearing further into the hub and at the same time drive the single row bearing out.
| CAUTION: Drive carefully until this bearing just drops clear, or otherwise the fabricated spacer will be damaged.
4 | Withdraw the axle and reverse to enter it through the spacer tube still in the hub.
5 | Holding the axle central, drive the double row bearing out, together with the felt retaining washer, felt seal and outer washer.
To re-assemble, first pack the bearings with grease then proceed as follows :
6 | Press the single row bearing into position at the left side of the hub.
7 | Fit the distance washer, plain side to the bearing.
8 | Fit the felt seal and locking ring which should be tightened fully with Peg Spanner 063965 tool.
9 | Insert the bearing spacer from the right, small end first into the hub, ensuring that it is fully home against the single row bearing. Pack the space between the bearing spacer and hub with grease.
10 | Enter the double row bearing squarely into the hub, passing the front axle through until it enters the opposite bearing. Drive the end of the spindle until the double row bearing comes up against the distance tube and stops.

11 | Fit the smaller felt retainer washer, the felt seal and large steel washer and lightly peen the latter into position at four points. Later models have a push-in washer.
To complete the wheel ready for refitting, relit the brake plate then refit the wheel to the forks as in Section H8.

### SECTION H10

### FRONT BRAKE ADJUSTMENT

(Drum Brake)
Routine brake adjustment is carried out by means of the cable adjuster (C). See Fig. H10. Correct adjustment will allow the wheel to spin freely with the minimum movement at the control lever.
Fig. H10 & H11 show the external features of the drum type twin leading shoe brake. Adjustment by this means is sufficient until such times as the brake shoes or linings are replaced. After replacement of such parts, the lining contact with the drum must be reset by means of the link rod adjustment.
Setting the Link Rod
1 | Take out the top clevis pin (F). See Fig. H10.

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