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n want to make an 8-point plumb line check of a van. What is the correct method?
1st December 1967, Page 135
1st December 1967
Page 135
Page 135, 1st December 1967
— n want to make an 8-point plumb line check of a van. What is the correct method?
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AYou should take a line drop from the
outside centre of each axle or stub axle marking the ground where the plumb bob forms. It is of course essential to ensure that the steering gear is straight ahead. The second readings should be taken from the fixed eye of the road springs or the pivoting eye of a trailing arm.
To check whether the vehicle is square it is then moved away from the marks which you have made beneath the plumb bob and diagonal measurements can be taken from nearside rear marks, These dimensions should be near enough the same. In any case they should not differ to any great degree. Frame square can be checked in the same manner.