Jet JDP- 20FT, Operating Instructions Manual

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Fig 4
Install three down feed handles (A, Fig
5) into the down feed hub (B).
Fig 5
Chuck guard Assembly:
Remove knurled bolt (D, Fig 6)
Remove screw (A Fig 6),
Insert the chuck guard (B Fig 6),
Install screw (A Fig 6),
Fig 6
Install knurled bolt (D Fig 6).
Safety Note:
For machine operation, the chuck
guard must always be closed and
locked with screw (D).
Raise the table to approximately
200mm below the spindle assembly.
Lock the table.
Place a piece of scrap wood on the
table.
Thoroughly clean the spindle opening,
the arbor, and the chuck.
Important:
These three pieces must be free of
any rust protection or lubricant. If they
are not clean, the arbor and chuck will
fail to seat in the spindle and will fall
out.
Place the arbor into the chuck.
Twist the chuck to retract the chuck
jaws if they are exposed.
Place the arbor and chuck assembly
into the spindle.
Turn the arbor and chuck assembly
until the tang on the arbor engages the
slot at the end of the spindle.
Lower the down feed handle so that
the chuck meets the scrap wood.
Pressure on the down feed handle
once the chuck meets the scrap wood
seats the arbor and chuck into the
spindle (see Fig 7).
Fig 7
5.3 Mains connection
Mains connection and any extension
cords used must comply with
applicable regulations.
The mains voltage must comply with
the information on the machine licence
plate.
The mains connection must have a
10 A surge-proof fuse.
Only use power cords marked H07RN-
F
Connections and repairs to the
electrical equipment may only be
carried out by qualified electricians.
5.4 Starting operation
You can start the machine with the
green on button. The red button on the
main switch stops the machine.
6. Machine operation
Always adjust the table and the depth
stop to prevent drilling into the table.
Use a back-up piece of scrap wood to
cover the table. This protects both the
table and the drill bit.
Secure workpiece to the table with
clamps or a vice to prevent rotating
with the drill bit.
Feed the bit into the material with only
enough force to allow the drill bit to
work. Feeding too slowly may cause
burning of the workpiece. Feeding too
quickly may cause the motor to stop
and/or the drill bit to break.
Recommended speeds for a 10mm
HSS drill:
Wood: 2000 RPM
Plastic: 1500 RPM
Aluminium: 1500 RPM
Brass: 1500 RPM
Cast iron: 1000 RPM
Mild steel: 800 RPM
High carbon steel: 600 RPM
Stainless steel: 300 RPM
Generally speaking, the smaller in
relation the drill bit, the greater the
RPM required.
Wood requires higher speeds than
metal.
Metal is usually drilled at slower
speeds; cutting oil is applied if
necessary.
Warning:
Always keep your hands well clear of
the rotating bit.
Do not remove chips and workpiece
parts until the machine is at a
standstill.
Always close the chuck guard and
pulley cover before you start the
machine.
When using a drill press vice, always
fasten it to the table.
Never do any works “freehand” (hand-
holding the work piece rather than
supporting it on the table), except
when polishing.