10
6.2.2
Variable speed model (SWG-272VS)
1. Remove existing plug from power cable and
attach a UL/CSA listed plug designed for 230V
power; or “hardwire” the machine directly to a
panel. If hardwiring make sure a disconnect is
provided for the operator.
No internal rewiring is needed for the inverter to
accept the new input voltage.
6.3
Extension cords
The use of extension cords is discouraged; try to
position your machine within reach of the power
supply. If an extension cord becomes necessary,
make sure the cord rating is suitable for the
amperage listed on the machine’s motor plate. An
undersized cord will cause a drop in line voltage
resulting in loss of power and overheating.
Use the chart in Table 2 as a general guide in
choosing the correct size cord. If in doubt, use the
next heavier gauge. The smaller the gauge number,
the heavier the cord.
Recommended Gauges (AWG) of Extension Cords
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 2
7.0
Adjustments
7.1
Platen or Wheel installation
Move switch to OFF to avoid
personal injury.
To install either the platen or the 8-inch serrated
wheel:
1. Pull out on tension lever (shown in Figure 7-3)
and lower it, to release tension on the belt.
2. Loosen knob and raise upper guard (see Figure
7-2). Open side panel by turning its knob and
lowering panel on its hinges.
3. Loosen clamp handle on head casting. See
Figure 7-1.
4. Install pivot shaft of platen (or shaft of wheel) all
the way into head casting, as shown in Figure
7-1.
5. Position platen as desired:
For grinding flat or angular workpieces,
position platen with platen surface facing
outward.
For grinding of cylindrical workpieces,
position platen with “yoke” side facing
outward.
6. Set platen at desired angle and tighten clamp
handle.
7. Install and track the abrasive belt (see sect. 7.3
and 7.4).
8. Raise tension lever to set belt tension.
Do not
overtighten.
9. Bring upper guard down into position and adjust
so that it will not contact abrasive belt. Tighten
upper guard knob.
10. Adjust work rest to 1/16 inch from belt.
7.2
Platen wheel adjustment
The platen wheels have eccentric shafts, which
allow adjustment of the wheels tangent to the
surface of the platen.
Turn one or both screws (A, Figure 7-1) to adjust.
Figure 7-1: installing platen assembly
7.3
Installing/replacing grinding belt
Do not operate machine with
side panel open.
1. Lower belt tension lever (see Figure ---) to
release tension on belt.
2. Loosen knob and raise upper guard (see Figure
7-2). Open side panel by turning its knob and
lowering panel on its hinges.
3. If required, loosen work rest to provide
clearance for belt removal.
4. Remove belt from drive wheel, idler wheel, and
contact wheel. Install replacement belt centered
over drive wheel, idler wheel, and contact
wheel. Make sure direction arrows on belt
match machine operation.
