Jet J-1600R, Инструкция по эксплуатации и каталог запасных частей

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Figure 11: Locking indicators
8.5
Raising and lowering radial arm
1. Power to drill press must be ON – then release
machine locks by pushing UNLOCK button in
center of handwheel.
2. Raise or lower arm to required height using
arm/spindle control lever (see Figure 10). See
also section 8.24,
Arm/spindle control lever
.
3. When arm is at required height and if no other
adjustments to spindle location are required,
press LOCK button to engage all machine
locks.
8.6
Moving drill head along arm
1. Power to drill press must be ON – then release
machine locks by pushing UNLOCK button.
2. Turn handwheel to move drill head along arm.
See Figure 10.
3. When drill head is at desired position on arm
and if no other adjustments to spindle location
are required, push LOCK button to engage all
machine locks.
NEVER swing drill press arm
on support column unless you are absolutely
certain the drill press base is firmly attached to
shop floor.
You can tell if base is bolted to floor by
checking the mounting pads at the four corners of
base. There should be a securing bolt through
each mounting pad. If the arm is moved off its
position directly above base and base is not bolted
to floor,
THE DRILL MAY TIP OVER AND CAUSE
SERIOUS INJURY TO THE DRILL PRESS
OPERATOR,
and will certainly result in damage to
drill press itself.
8.7
Rotating arm on support column
1. Power to drill press must be ON – then release
machine locks by pushing UNLOCK button on
front of handwheel.
2. Swing arm using handle (see Figure 10) to
required spindle position.
3. When spindle is positioned correctly and no
other adjustments are required, push LOCK
button to engage all machine locks.
8.8
Setting spindle speed
Spindle speeds are established using gear change
levers on lower right-hand side of drill head. The
shorter of the two levers (C, Figure 12) operates a
two-speed mechanism which puts the gearbox in
either high or low gear. The longer gear change
lever (D) operates a three speed gearbox
mechanism. A detent in the middle of the three-
speed lever travel indicates when lever is in
intermediate gear position.
The spindle speed readout (F) is located on the
three-speed change mechanism housing.
Figure 12: Gear change levers
This gearbox set-up allows a total of six spindle
speeds which may be selected. Adding the two
speeds possible with the HI/LOW change lever (E,
Figure 12) increases the number of available
speeds to twelve.
A chart on front of drill head shows gear change
values required to select each speed. A similar
chart is included in Table 4 of this manual.
Also on the spindle speed chart are recommended
drill and tap sizes for the various speeds which are
selectable.
These recommendations are only
approximate.
With the wide variety of drill types
and coatings available, as well as cutting fluids,
and the even wider variety of workpiece materials
which you might be machining – you need to
consult with your tooling, coolant and/or workpiece
suppliers to determine best spindle speed to use
for any specific drilling operation.