Jet JTM-1050, Инструкция по эксплуатации и каталог запасных частей

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12.3 Changing speed range
To change from high to low speed range, push in
lever (D, Figure 5) and rotate it almost 180
degrees. Lever will stay in position once pressure
is released.
Do not change gears while
spindle is running. Rotate spindle by hand to
ensure clutch is engaged prior to turning on.
Do not turn on machine unless spindle can be
moved freely.
12.4 Manual feed
12.4.1 Manual fine feed (handwheel)
Refer to Figure 8.
1. Disengage automatic feed by pulling out knob
(E, Figure 8) and moving lever to the right
hole.
2. Position feed reversing knob (K) to the center,
or neutral, position.
3. Engage feed trip lever (I) by pulling away from
the head assembly.
4. The quill can now be moved up or down by
turning handwheel (J, Figure 5).
Figure 8: Manual feed controls
12.4.2 Manual coarse feed (handle)
Refer to Figure 8.
1. Disengage automatic feed by pulling out knob
(E, Figure 8) and moving lever to the right
hole.
2. Position feed reversing knob (K) to the center,
or neutral, position.
3. Disengage feed trip lever ( I ) by pushing
towards head assembly.
4. Use coarse feed handle (F, Figure 5) to move
the spindle.
12.4.3 Micrometer adjusting nuts for
manual feed
Refer to Figures 5 and 8.
1. Lower quill to required depth.
2. Tighten quill lock (G, Figure 8).
3. Screw the micrometer nut (H
1
) against quill
stop (L), and tighten micrometer jam nut (H
2
).
4. Loosen quill lock (G).
5. Use coarse or fine manual downfeed .
Note: Always make a test cut to verify that depth
of cut is correct.
12.5 Automatic feed
Refer to Figure 8.
1. Ensure quill lock (G, Figure 8) is loosened by
rotating counterclockwise.
2. Set micrometer nut (H) to desired depth.
3. Engage auto feed lever by pulling out lock
knob (E) and moving lever to the left hole.
4. Select feed direction by setting feed direction
knob (K) position per Table 2.
Spindle dir. Feed dir. Knob position
CW
Down In
Up Out
CCW
Down Out
Up In
Table 2
5. Select feed rate from feed selector knob (M)
0.0015”, 0.003”, and 0.006” per spindle
revolution. It is easier to change feed rate
while the spindle is turning.
6. Engage feed trip lever ( I , Figure 8) by pulling
away from head assembly.
Automatic (power) feed
may be engaged when spindle is
rotating, however, it must be engaged
gently to avoid damage to the worm gear.

Do not use power feed at speeds
above 2700 R.P.M.

It is recommended that the power
feed worm gear be disengaged
whenever the power feed is not
required.

Maximum loading is a 3/8” (9.5mm)
diameter bit for drilling in steel. Use
manual feed for bits larger than 3/8".
Note: Due to variables in tool diameter, coatings,
coolant, and materials, no specific spindle speed or
feed rate recommendations are provided. Use
general shop manuals that have data applicable to
the milling and drilling operations being performed.
Or, contact the supplier of the tooling, coolant and
material for specific recommendations.
12.5.1 Micrometer adjusting nuts for
auto feed
Refer to Figures 5 and 8.
1. Lower quill to required depth.