Brewer's Ledge Treadwall AM, Service Manual

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Treadwall
®
Service Bulletin #3:
Adjustment of microswitch
The Treadwall counter is activated by a simple microswitch which counts every other 6" panel, each
click/count indicating 1' of distance. The microswitch is mounted inside the panels with its arm passing
over every other panel stiffener bar. This arm movement (clicking sound) breaks a tiny electrical
current from the counter which causes a "count".
Access to the microswitch is by removal of a panel . The wall is then rotated to expose the microswitch.
See Service Bulletin No. 1 "Removal of a Panel".
If a counter is not working, check the following items:
a. Examine the microswitch; is the arm is bent and aligned correctly? See diagram below.
b. Is the counter itself working properly? This can be checked by removing one wire from the
microswitch and touching it to the other wire - the counter should register each touch.
c. If the microswitch was just installed, check to ensure you have attached one wire to the
terminal marked "common", with the other to either remaining terminal.
If you are installing a new microswitch, be sure to mount the switch on the correct side of the bracket so
that the arm clicks over every other panel bar. Depending on the bracket supplied with your machine,
the microswitch will have to be mounted on the inner or outer side of the bracket. It may only go in one
position to catch every other panel.
Test microswitch at all angles; there is some variation in panel position depending on angle.
Panel
IMPORTANT: The most frequent
cause of failure is misadjustment of
the switch arm. Make sure it works
properly with the wall moving both
forward
and backwards! at all angles.
Test bent arm - a clicking
sound should be heard each time it
passes over a panel bar.
Panels.
Make sure switch counts every other bar...place switch
on correct side of bracket.
Make sure raised tip does not catch
opposite panel bars as they descend!
Microswitch
Panel Bars