Starting Operation; Removing The Chuck And Arbor; Adjusting The Depth Stop - Jet JDP-22VS Gebrauchsanleitung

5.4 Starting operation

Before starting the machine check
the proper chucking
The keyed ON/OFF switch activates
power to the drill press and can be
locked in the OFF position to avoid
unauthorized use.
Fig 4
You can start the machine with the
green START-button.
The red STOP-button stops the
machine.
The emergency stop button (R, Fig 2)
stops all machine functions.
Attention:
The machine still has electric power!
Turn emergency stop button clockwise
to reset.
The speed selector switch ( I, Fig 1) is
used to determine direction of spindle
rotation (Fwd/Rev) and to set the
motor speed (1 or 2).
WARNING:
Do not change the spindle running
direction while machine is running.
Improper operation may damage the
selector switch.
6. Machine operation
Warning:
Setup work may only be carried out
after the machine is protected
against accidental starting.
With pressed emergency stop
button.
Never place your fingers in a position
where they could contact any rotating
tool, chuck or cutting chips.
Remove cutting chips with the aid of
an appropriate chip hook when the
machine is at a standstill only.
Never stop the rotating chuck or tool
with your hands.
Always close the chuck guard and
make sure the pulley cover is closed
before you start the machine.
Secure work piece to the table with
clamps or a vice to prevent rotating
with the drill bit.
When using a vice, always fasten it to
the table.
Check the save clamping of the work
piece, chuck and tools before starting
the machine.
Never do any works "freehand" (hand-
holding the work piece rather than
supporting it on the table).
Support long work pieces with helping
roller stands.
Always adjust the depth stop to
prevent drilling into the table or into
the workholding device.
Feed a drill bit into the material with
only enough force to allow the drill bit
to work. Feeding too slowly may
cause burning of the work piece or
tool. Feeding too quickly may cause
the motor to stop and/or the drill bit to
break.
Do not use wire wheels or grinding
wheels on this machine.
Never cut magnesium-
high danger to fire!
Measurements and adjustments may
only be carried out when the machine
is at a standstill only.
In case of danger push the
emergency stop button.
Spindle speeds selection:
The correct spindle speed depends on
the type of machining, the cutting
diameter, the material to be machined
and the cutting tool.
These are recommended max. speeds
for a 10mm high speed steel (HSS)
tool (e.g. drill bit).
Aluminium, brass
Cast iron
Mild steel
High carbon steel
Stainless steel
6
If a carbide (HM) tool is used about 5
times higher speeds can be chosen.
Generally speaking, the larger in
relation the cutting diameter, the
smaller the possible RPM.
For example:
Drilling mild steel with a drill bit of
20mm allows a speed of
400 RPM max.
2000 RPM max.
7. Setup and adjustments
Warning:
Setup and adjustment work may
only be carried out after the
machine is protected against
accidental starting.
Push the emergency stop button
and disconnect from the power
source!

7.1 Removing the Chuck and Arbor

Unplug the machine from the power
source.
Lower the quill using the down feed
handle.
Rotate the spindle to align the key in
the spindle with the key hole in the
quill.
Insert the drift key into the aligned
slots and tap lightly. Have another
person (or a protected table) catch the
chuck and arbor assembly as it falls
away from the spindle (Fig 5).
1500 RPM

7.2 Adjusting the Depth Stop

1000 RPM
To drill multiple holes at the same
800 RPM
preset depth, use the depth stop and
depth gauge (Fig 6).
600 RPM
300 RPM
with HSS tool
with carbide tool
Fig 5