11
Figure 8-1: depth stop adjustment
7.2
Changing spindle speeds
A spindle speed and pulley/belt arrangement chart is
affixed inside pulley cover, and also shown in
sect.
11.0
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
7.3
Return spring adjustment
The return spring is adjusted by the manufacturer and
should not require attention. If adjustment is deemed
necessary, follow the steps below while referring to
Figure 8-3:
1. Unplug machine from power source.
2. Loosen lock nut (E).
Do not remove
.
3. Firmly hold coil spring cover (F).
4. Pull out cover and rotate until pin (G) on housing
engages the next notch in coil spring cover. Turn
cover clockwise to decrease tension and
counterclockwise to increase tension.
5. Tighten lock nut (E).
Do not over-tighten or force
nut too strongly against spring cover.
Figure 8-3: return spring adjustment
7.4
Table tilt adjustment
Table tilt adjustments are made on table bracket
beneath table.
Refer to Figures 8-4 and 8-5.
In the following steps do not
over-loosen. This could cause table assembly to
separate from column, fall and cause injury.
1.
JD-32120:
Loosen set screw (H) with 5mm hex
wrench)
2.
JD-32120:
Loosen two hex nuts (J) with 19mm or
adjustable wrench.
3. Tilt table to desired angle, referring to scale and
pointer atop table bracket.
4. Tighten screw or nuts (J).
5. Tighten
set screw (H).
