-32-
Model W1866 (For Machines Mfd. Since 11/18)
O
PE
R
ATIO
NS
Changing.Speed.Ranges
The pulley belt configurations on this lathe provide two
speed ranges (see
Figure
31
).
Note: To maximize spindle torque, use low spindle speed
range for spindle speeds of 1200 RPM or less.
Refer to the speed recommendations chart below to
choose an appropriate RPM for your operation, then
choose the speed range that will include the selected
RPM.
Always. choose. correct. spindle. speed.
for. an. operation.. Using. wrong. speed.
may. lead. to. workpiece. being. thrown.
at. high. speed,. causing. fatal. or. severe.
impact.injuries.
Workpiece.
Diameter
Roughing..
RPM
General.
Cutting.RPM
Finishing..
RPM
Under 2"
1600
2300
2300
2–4"
800
1600
2300
4–6"
500
1100
1700
6–8"
400
800
1250
8–10"
300
700
1000
10–12"
250
550
900
12–16"
200
450
680
16–20"
150
350
550
20–24"
100
280
400
Outboard
80
200
300
Spindle
Motor
= Low Range
60-1200 RPM
= High Range
120-2300 RPM
Figure.31.
Speed range belt positions.
To change speed ranges, do these steps:
1. DISCONNECT
MACHINE FROM POWER!
2. Open belt access cover, as shown in Figure
32
.
3. Loosen belt tension lock handle (see Figure
33
).
4. Use belt tension lever (see Figure
33
) to lift motor
assembly all the way up, then re-tighten belt tension
lock handle to hold motor in place while you change
belt position.
Figure.33.
Belt tension lever and lock
handle.
Belt
Tension
Lever
Belt Tension
Lock Handle
Figure.32.
Belt access cover opened.
Belt
Access
Cover
Summary of Contents for W1866
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