17
OPERATION
The operation instructions under “OPERATION-GENERAL” also apply to this
machine. Please see the additional instructions specific to the 4-speed Morse
taper model below:
WARNING: NEVER operate 60mm (2-3/8 in.) or larger cutters unless the plate
thickness is mini mum 20mm (13/16 in.) MAGNET LIFTING MAY RESULT. If
the plate thickness is not enough, supplement the magnetic adhesion by
adding a 10mm or thicker plate directly the magnet’s position under the
work piece.
CAUTION: Machine is equipped with a reversing switch. Always ensure that
direction of rotation is correct before operating. Operating in the wrong
direction could result in damage to the cutter.
Select desired gear range by first popping the tab out of its detent and then sliding selectors up or down in
the proper combination. Refer to the chart to achieve the correct combination for the desired speed. (It may
be necessary to turn the arbor slightly in order for the gears to mesh properly). Follow the recommended
speed ranges on the cutting speed chart to set the proper speed and gear range.
NOTE: These speeds are general recommendations only. The material should determine actual speeds
and the cutting speed recommended by the cutting tool manufacturer. See the section below
"RECOMMENDED SURFACE SPEEDS" and use the formula to calculate the best RPM.
4 SPEED GEAR CHART (FIXED MOTOR SPEED MODELS)
GEAR NO LOAD min
-1
FULL LOAD min
-1
CUTTERS TAPS
1
150
90
60~75mm 15~25.4mm or less
(2-3/8 to 3 in.) (9/16 to 1 in.)
2
200
120
45~60mm N/A
(1-3/4 to 2-3/8 in.)
3
300
180
35~45mm N/A
(1-3/8 to 1-3/4 in.)
4
380 230
35mm or less
N/A
(1-3/8 in.)
4 SPEED GEAR CHART (VARIABLE MOTOR SPEED MODELS)
GEAR
MAX. SPEED min
-1
MIN. SPEED min
-1
CUTTERS TAPS
1
120 35
Up to 120mm
25mm or less
(4-3/4") ( 1 in.)
2
220
70
55mm-70mm
N/A
(2-1/8 to 2-3/4 in.)
3
250
80
35~55mm N/A
(1-3/8 to 2-1/8 in.)
4
450
140
35mm or less
N/A
(1-3/8 in.)
Содержание MD120/4
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