Rockwell Automation Publication 2100-IN012G-EN-P - August 2016 73
Operator Handle and Unit Interlock Chapter 6
Lock Horizontal Operating Handles in the OFF/O Position
Some units use a horizontal operating handle. The horizontal operating handle
can be locked in the OFF/O position by putting the shackle of the lock
through the open slotted area to the left of the operator handle.
Figure 33 - Locking a Horizontally Mounted Operating Handle in OFF/O Position
Lock Units with Operating Handles in the ON/I Position
Follow this procedure to lock the operator handle in the ON/I position.
1. Drill out the hole to 3/8 in. (9.5 mm) diameter maximum.
2. Insert the shackle of the lock.
The following instructions assume that the handle is in the ON/I position:
• For units with small handles, the hole is in the upper portion of the
operator handle assembly.
• For units with medium and large operator handles, the hole is
underneath the operator handle on the handle assembly.
• For units with a horizontally mounted handle, the hole is on the left-
hand side of the handle assembly.
ATTENTION: Locking an operating handle in the ON/I position can be in
conflict with local codes and emergency shut down requirements.
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