Quick Fix Guide www.netherlocks.com/support
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Resetting is required when the end stops of a valve change,
due to wear or pollution inside the valve.
> On both sides of the MRL lock there are slotted holes
where the counting mechanism of the lock can be set for
any valve or gearbox up to 180 turns
> Above 180 turns a special valve interlock (x-counter) has
to be installed which can handle 800 turns by default
> For more than 800 turns, a customized version of the
x-counter is available
How to reset a MRL valve interlock