ATS 2140-M Series, Instruction Manual

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9.
Check position and operation of the proximity switch actuator (or shutdown switch actuator,
if equipped).
10. For automatic beam leveling on tester drawheads:
a. Attach the automatic beam level floating actuators to the lever arm above the proximity
switches.
NOTE: The switch at the front of the machine is known as the main switch, while the switch at
the back of the machine is the intermediate. These switches are pre-installed by ATS.
b. Adjust the nuts above the main proximity switch until the red light on the switch goes out,
which signals that the arm is level. The red light will illuminate ONLY when the lever arm
is low on the weight pan side.
c. To set the intermediate switch, adjust the nuts above until the red light goes out. This
should be when the weight pan sits on the base and there is about 1-2cm of slack in the chain.
The red light will illuminate ONLY when the lever arm there is excessive slack in the chain.
NOTE: A green light shows that the switches are level.