TREADWALL
SERVICE BULLETIN
#13:
VALVE ARM
ADJUSTMENT
Two views of the Valve Arm.
valve handle
lever
Valve lever in closed position. Note
short valve handle is close to vertical.
Valve in open position. Note that the
short valve handle is close to horizontal
-almost parallel to valve axis.
This angle (between the
valve handle and the lever)
determines how high you are on
the wall when the brakes
release. To raise the
brake-point, straighten the angle
slightly. To lower the
brake-point, angle it more. The
angle shown in the diagram is a
good starting point
To adjust angle:
1) Loosen top bolt that holds
valve handle to lever (the one
with a large washer)
2) Adjust angle between lever
Summary of Contents for Treadwall AM
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