Norton Commando Workshop Manual

## Frame and Ancillaries

# F

### SECTION F3

### FRAME CHECKING DIMENSIONS

During the course of an accident repair, the frame must be examined most carefully for damage to tubes, welds and fixing lugs. It is then essential to check for distortion and misalignment. Fig. F4 shows the Commando frame measurements which should be used to establish whether or not damage has occurred. However, before stripping out the frame from the motorcycle, one quick visual check can be made on vertical alignment at the

steering head tube after removal of the front fork assembly. This is accomplished by a long tube (approximately 4 ft. (121 cm) ) inserted as a tight push fit through the steering head races. Viewed from the front, the tube should be seen to be perfectly alignad to the motorcycle centre line. Severe damage will immediately be shown up by this method and will obviate unnecessary dismantling at the estimating stage.
It is recommended that the frame is checked more accurately when removed from the motorcycle, to the dimensions given in the checking chart.

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