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Electrical Connections After September 2019
A standard electrical schematic is shown below. This schematic is typical of installations from
September 2019 and onward. The physical indication that shows the difference between this
connection arrangement and earlier assemblies, is the red sheathing on the truck timer harness.
For schematics related to the exchange of timers in other systems, please visit
www.lubecore.com or contact Lubecore directly.
As in previous systems the truck timer schematic below includes the low-level switch operation.
For lubrication systems that do not have the low-level switch operation, a separate connection is
required for input into the timer. To ensure proper timer operation without a low-level switch, a
jumper wire must be installed between pin #7 and pin #3 at the timer plug end.
Figure 21 Common Electrical Timer for a Lubecore Truck Timer September 2019 and onward
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