Grizzly g0749 Correcting Phase Polarity, Connection Type, Grounding Instructions, Extension Cords

Connection Type

a permanently connected (hardwired) power sup- ply is typically installed with wires running through mounted and secured conduit. a disconnecting means, such as a locking switch (see following figure), must be provided to allow the machine to be disconnected (isolated) from the power supply when required. this installation must be performed by an electrician in accordance with all applicable electrical codes and ordinances.

Figure 10. Typical setup of a permanently

connected machine.

Grounding Instructions

In the event of a malfunction or breakdown, grounding provides a path of least resistance for electrical current to reduce the risk of electric shock. A permanently connected machine must be connected to a grounded metal permanent wir- ing system; or to a system having an equipment- grounding conductor. All grounds must be verified and rated for the electrical requirements of the machine. Improper grounding can increase the risk of electric shock!

Serious injury could occur if you connect the machine to power before completing the setup process. DO NOT connect to power until instructed later in this manual.

Extension Cords

Since this machine must be permanently con- nected to the power supply, an extension cord cannot be used.

Model G0746/G0749 (Mfg. Since 3/13)

Correcting Phase

Polarity

This sub-section is only provided for troubleshoot- ing. If you discover that the lathe will not operate, or that the spindle runs backwards, the lathe may be wired out of phase.

Correcting phase polarity requires reversing the positions where two incoming power source wires are connected. Due to the high voltage and risk of serious shock involved, we strongly recommend this procedure only be done by an electrician or qualified service personnel.

To correct the phase polarity of the incoming power supply:

1.disCONNECT MACHINE FROM POWER!

2.open electrical box located at back of machine.

3.swap the incoming L1 and L2 wire positions on the terminals shown in Figure 11.

Swap Any Two

Wires Here

Figure 11. Swapping power connections to

correct out-of-phase wiring.

3.Close and latch electrical box.

4.reconnect machine to power supply.

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