
VEHICLE STRUCTURE 467
body or, at the most, after a slight pressure is applied
by hand. The diameter of each dowel is significantly
less than the bore of the corresponding hole in the jig,
this clearance directly relating to the maximum toler-
ance allowed for the positioning of the hole in the body.
Body alignment checking equipment must be treated
with care, since any loss of accuracy resulting from
damage can be reflected in car handling and tyre wear
problems.
27.2 COMMERCIAL VEHICLE CHASSIS FRAMES
General arrangement
The structural foundation of a commercial vehicle lies
in its chassis frame, which in long-established practice
has take