Powermatic PM3000 manual Grounding Instructions, Extension Cords, Adjustment

Adjustment

The clamping blocks (L, M, Figure 9) are adjusted at the factory and no further adjustment of the blade guard and riving knife assembly should be necessary. However, proper alignment is very important. Before operating the table saw, read the Riving Knife Adjustment section (page 16) to verify and follow the adjustment procedure if necessary.

Grounding Instructions

Electrical connections must be made by a qualified electrician in compliance with all relevant codes. This machine must be properly grounded to help prevent electrical shock and possible fatal injury.

A power plug is not provided with the Model PM3000. You may either connect the proper UL/CSA listed plug or “hardwire” the machine directly to your electrical panel provided there is a disconnect near the machine for the operator. If hard-wiring, make sure the fuses have been removed or the breakers have been tripped in the circuit to which the machine will be connected. Place a warning placard on the fuse holder or circuit breaker to prevent it being turned on while the machine is being wired.

The three phase motor on the 1720305K is pre- wired for 230 volt but may be re-connected for 460 volts by changing the connections as illustrated in the diagram in the motor wiring box, and by installing a 460V switch (not included – call customer service to order stock no. PM3000-282A).

It is recommended that the three phase PM3000 table saw when operated at 230 volts, be connected to a dedicated, minimum 30 amp circuit with a 30 amp circuit breaker or time delay fuse. When operated at 460 volts, connect the table saw to a dedicated, minimum 20 amp circuit with 20 amp circuit breaker or time delay fuse. Local codes take precedence over recommendations.

This machine must be grounded. Grounding provides a path of least resistance to help divert current away from the operator in case of electrical malfunction.

Make sure the voltage of your power supply matches the specifications on the motor plate of the machine.

Figure 9 repeated

Extension Cords

Make sure the cord rating is suitable for the amperage listed on the machine's motor plate. An undersize cord will cause a drop in line voltage resulting in loss of power and overheating.

The chart in Table 1 shows the correct size cord to use based on cord length and motor plate amp rating. If in doubt, use the next heavier gauge. The smaller the gauge number, the heavier the cord.

Recommended Gauges (AWG) of Extension Cords

			Extension Cord Length *
Amps		25	50	75	100	150	200
		feet	feet	feet	feet	feet	feet
< 5		16	16	16	14	12	12
5 to	8	16	16	14	12	10	NR
8 to 12		14	14	12	10	NR	NR
12 to	15	12	12	10	10	NR	NR
15 to	20	10	10	10	NR	NR	NR
21 to	30	10	NR	NR	NR	NR	NR

*based on limiting the line voltage drop to 5V at 150% of the rated amperes.

NR: Not Recommended.

Table 1

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