Needs Maintainance Cover

The Needs Maintainance [sic] Cover is a cover added by GregTech 5 Unofficial. It is used to emit Redstone signals when a number of maintenance issues arise.

Usage
Place the Needs Maintainance Cover on any Control Block of a Multiblock that needs maintenance. By clicking on the cover with a screwdriver the number of maintenance issues needed to emit a redstone signal must be changed.

The cover emits a redstone signal from the side it is placed on, as well as the opposite side of the machine.

Tip
Since most multiblock controllers have no free side to place redstone logic next to them, it is recommended to use a Redstone Transmitter (In) attached to Input/Output Hatches/Buses. Alternatively, one can also put the Needs Maintainance Cover on one side of the controller, and put a on the opposite side of it.