7
EXTENSION CORDS
Use proper extension cords. Make sure your extension cord is in good condition and is a 3-wire
extension cord which has a 3-prong grounding type plug and matching receptacle which will accept the machine’ s plug.
When using an extension cord, be sure to use one heavy enough to carry the current of the machine. An undersized
cord will cause a drop in line voltage, resulting in loss of power and overheating. Fig. C shows the correct gauge to
use depending on the cord length. If in doubt, use the next heavier gauge. The smaller the gauge number, the heavier
the cord.
Fig. C
MINIMUM GAUGE EXTENSION CORD
RECOMMENDED SIZES FOR USE WITH STAT I O N A R Y ELECTRIC MACHINES
A m p e r e Total Length Gauge of
R a t i n g Vo l t s of Cord in Feet Extension Cord
0 - 6 1 2 0
up to
2 5 18 AW G
0 - 6 1 2 0 2 5 - 5 0 16 AW G
0 - 6 1 2 0 5 0 - 1 0 0 16 AW G
0 - 6 1 2 0 1 0 0 - 1 5 0 14 AW G
6 - 1 0 1 2 0
up to
2 5 18 AW G
6 - 1 0 1 2 0 2 5 - 5 0 16 AW G
6 - 1 0 1 2 0 5 0 - 1 0 0 14 AW G
6 - 1 0 1 2 0 1 0 0 - 1 5 0 12 AWG
1 0 - 1 2 1 2 0
up to
2 5 16 AW G
1 0 - 1 2 1 2 0 2 5 - 5 0 16 AW G
1 0 - 1 2 1 2 0 5 0 - 1 0 0 14 AW G
1 0 - 1 2 1 2 0 1 0 0 - 1 5 0 12 AW G
1 2 - 1 6 1 2 0
up to
2 5 14 AW G
1 2 - 1 6 1 2 0 2 5 - 5 0 12 AW G
1 2 - 1 6 1 2 0 GREATER THAN 50 FEET NOT RECOMMENDED
F O R E W O R D
FUNCTIONAL DESCRIPTION
NOTICE: The photo on the manual cover illustrates the current production model. All other illustrations contained in the
manual are representative only and may not depict the actual color, labeling, or accessories, and are intended to
illustrate technique only.
The ShopMaster Model SM500 is a 4" Belt, 6" Disc Sander that comes equipped with a 5.2 AMP 120 Volt Single Phase
Induction Motor, a tilting table, a miter gauge, a backstop, a 4" x 36" 60-grit sanding belt, and a 6" 60-grit sanding disc.
You can mount the tilting table for use on either the belt or disc unit, and can operate the belt in the horizontal position,
the vertical position, or any position in between.