Rewiring to 440V
The Model G0501 can be rewired for 440V oper- ation. This rewiring job consists of disconnecting the saw from the power source, changing the connections on the voltage transformer, changing the overload relays for the cutting motor and scoring motor, and rewiring the cutting motor and scoring motor.
The necessary overload relays for this procedure can be purchased in the Model G0501 440V Conversion Kit by calling our customer service number at (800)
This procedure takes moderate electrical skill and the rewiring job must be inspected by a licensed electrician before the saw is connected to the power source. Also, the motors can be accessed easier for rewiring if the blade is moved to 0˚ (90˚ to table) before beginning.
To rewire the Model G0501 for 440V opera- tion:
1.Disconnect the saw from the power source!
2.Open the electrical panel and locate the volt- age transformer shown in Figure 2.
Scoring
Voltage Motor Relay
Transformer
Main Motor
Relay
Figure 2. Inside view of the control panel.
3.At the voltage transformer, remove the wire that leads to the “220” terminal and connect that wire to the “440” terminal (see Figure 3).
340 | 480 |
Voltage Transformer
Figure 3. Wire removed at 220V location and
connected to 440V location.
4.Remove the main motor overload relay (RH- 18/26 21-31A) and replace with the 440V overload relay (RH-18/15 12-18A) that was included with the Grizzly 440V conversion kit. Set the overload relay dial to 13A.
5.Remove the scoring motor overload relay (RH10E/3C 2.4-3.6A) and replace with the 440V overload relay (RH10E/1.7C 1.3-2A) from the conversion kit. Set the overload relay dial to 1.7A.
6.Open the motor cabinet door and remove the motor wiring caps from the main motor and the scoring motor.
7.Rewire the motors as shown on the diagrams that are placed on the inside of the motor wiring caps. Note—The diagram labeled “Higher” is the correct wiring for 440V.
G0501 Sliding Table Saw |