SOLVING PROBLEMS
Inconsistent Lean
When the arm is new, or when adjustments
are made, lean can appear to vary slightly
between the start and end of a record. This
will normally pass as the hoists settle in and
form to the shape of the hoist pipe.
If this persists, it may result from under-
extension of the hoist pipe eye relative to
the pivot point. To extend the hoist pipe,
dismount the arm, loosen the pipe locking
screw and push the hoist pipe a little
further out so that its eye is more directly
above the pivot point. The bearing works
best if the eye of the hoist pipe is only a
millimetre or so closer to the post than the
pivot point. Do not over-extend the hoist
pipe lest contact at the pivot cease.
Excess Bias
This problem may also arise from the eye of
the hoist pipe being too near the post as
compared to the pivot. Extend the hoist
pipe as described above.
hoist pipe
hoist pipe eye
pipe lock screw
pivot bolt
pivot point
post
pillar
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gripping tightly. Do not overtighten as this
could split the carbon-fibre tubes. The short
end of an Allen key can be ground down in
order to access the thrust box bolts with it.
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