Use and Care Manual
9
2. Reinstall cover.
3. The plug on end of main power cord must be
replaced with a UL/CSA listed plug rated for 230
volt operation.
Figure 7-2: voltage conversion
7.3 Extension cords
The use of extension cords is discouraged; try to
position machines near the power source. If an
extension cord is necessary, make sure it is in good
condition. When using an extension cord, be sure to
use one heavy enough to carry the current your
product will draw. An undersized cord will cause a
drop in line voltage resulting in loss of power and
overheating. Table 1 shows correct size to use
depending on cord length and nameplate ampere
rating. If in doubt, use the next heavier gauge. The
smaller the gauge number, the heavier the cord.
Amp Rating Volts Total length of cord in feet
More
Than
Not
More
Than
120
240
25
50
50
100
100
200
150
300
AWG
0 6 18 16 16 14
6 10 18 16 14 12
10 12 16 16 14 12
12 16 14 12
Not
Recommended
Table 1: Extension cord recommendations
8.0 Adjustments
8.1 Depth stop adjustment
To drill multiple holes at the same preset depth, use
the depth stop:
1. Make a pencil mark on edge of workpiece to
indicate depth of hole.
2. With drill bit in chuck, lower downfeed handle to
advance bit to your mark.
3. With your other hand, advance lock nuts (A,
Figure 8-1) on the depth stop rod until they are
snug to the seat (B).
4. The drill bit will now advance to this point.
5. To release, advance nuts counterclockwise to
top of depth stop.
Figure 8-1: depth stop adjustment
8.2 Changing spindle speeds
A spindle speed and pulley/belt arrangement chart
is affixed inside pulley cover, and also shown in
sect. 12.0 of this manual.
To change spindle speeds:
1. Unplug machine from power source.
2. Loosen two thumb screws (C, Figure 8-2) found
on each side of head assembly.
3. Rotate tension handle (D) clockwise to bring
motor base as close to head as possible.
4. For desired speed, change location of belts per
pulley/belt arrangement chart.
5. Rotate tension handle (D) counterclockwise to
tension belts.
6. Tighten both thumb screws (C). Belts are
properly tensioned when finger and thumb
pressure midway between the two pulleys
causes approximately 1/2-inch deflection.
Figure 8-2: belt/speed adjustment