Treadwall
®
Service Bulletin #27 Securing internal x-bracing.
It has come to our attention that the inside turnbuckles on the Treadwall sometimes loosen up,
even when the locknuts are tightened down securely. These are the turnbuckles which can be
seen through the access holes at the bottom of the side channels, not the larger turnbuckles on
the frame at the back of the machine.
If these internal turnbuckles become loose, the climbing surface will sway slightly from side to
side while the machine is being used, which is somewhat unpleasant but not a serious problem.
If one loosens completely and comes apart, however, the x-bracing rod will drop down and
become caught between two panels. This will cause damage - the rod will be bent and panel
damage may occur.
To prevent these problems, please check your Treadwall to make sure these turnbuckles
have not loosened. If they are loose, tighten them firmly by hand (do not over-tighten - it can
cause friction in the wall) and tighten down the locknuts. The turnbuckles should need no further
adjustment, and they should be secured to prevent them from loosening again. If the
turnbuckles are of the closed type use a few layers of duct-tape on each end to prevent turning
as shown. If they are open-body turnbuckles either use duct-tape or a locking wire
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