I am working on the dial drive for this rig. The LMO is a TRW 800 651.

In setting the dial pointer to track across the 0-5 dial window, I have
found that the LMO only makes (4) 360 deg rotations, not 5, as called
out in the instructions. There are a series of 6 little "L" shaped
pawls on the LMO shaft. On rotation (1), the inner-most pawl is stopped
by a roll pin on the shaft bracket, but on rotation (2) it appears that
(3) of the pawls are stopped by the first pawl. There after, one pawl
is stopped by the preceeding pawl on each rotation.

None of the pawls seems to be distorted or bent in such a way as to
interfer with the rest passing over it as they should.

This description will probably make sense to an expert- I suppose not
to anyone else!

Anybody incounter this before??