Quick Fix Guide www.netherlocks.com/support
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> Check if you are considering (removing) the correct key
a. Valve open, then right key should be removed
b. Valve closed, then left key should be removed
> Check if the valve is fully operated, key is only removed
when valve is fully open or closed
> Check setting; remove setting counter cover from the
side where the key is stuck
> If two set screws are not inline, ush and directly
visible, the lock has passed or not reached its setting
and needs to be reset (see reset procedure)
> After reset, remove key
Troubleshooting valve interlocks
Key stuck (key cannot be removed)
1 2 2
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