Mains Connection; Dust Connection; Starting Operation; Machine Operation - Jet 22-44OSC Operating Instructions Manual

Install the sanding paper (see chapter
7.1).
Lower the sanding drum until it
touches the sanding bed and zero the
indicator (B, Fig4) in regards to the
height scale.

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 16
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 Dust connection

Before initial operation, the machine
must be connected to a dust extractor.
The suction should switch on
automatically when the sander is
switched on.
The flow rate on the 100mm suction
port must be 20m/sec.
Flexible hoses must be of non-
flammable quality, and must be
connected to the machine ground
system.

5.5 Starting operation

You can start the sanding drum with
the green on button (D, Fig4) on the
control box. The red button on the
control box stops the motor.
The federate control knob (C, Fig 4)
starts the conveyor and selects the
feed rate from 0 to 100% (0 – 3
m/min)
The height adjustment handle raises
or lowers the sanding drum to the
selected depth of cut.

6. Machine operation

Correct operating position:
To feed the workpiece into the
machine, position yourselves offset to
one side of the feed opening.
Workpiece handling:
Feed stock form the infeed side and
against the rotation of the drum.
It will then be automatically fed
through the machine.
Feed with thicker workpiece end at the
front, hollow side downward.
Don't machine stock that is heavily
twisted, bowed, or otherwise varies in
thickness form end to end.
Workpieces shorter than 60 mm may
not be processed.
Machine max. 2 workpieces at one
time. Feed on both drum ends.
Support long workpieces with helping
roller stands.
Basic operating procedures:
1. Set depth of cut
2. Select Oscillation ON or OFF
3. Start drum
4. Start conveyor and select
federate.
5. Start dust collector
6. Feed stock through unit
General warning:
Always keep your fingers well clear
of the rotating sanding drum.
Never place your fingers under the
drum.
Operating notes:
First begin sanding with a coarser grit,
and then progressively work toward
finer grits (see chapter 7.2).
Grits that are too fine may sometimes
burnish the wood (oak, for example is
susceptible due to its open pores).
Angling the workpiece provides the
advantage of more even wear of
abrasive strips, potential faster feed
rates, lighter load on the motors and
less dust build up on the sanding
paper.
6
Fig 5
Even a slight offset angle of the stock
will provide for more efficient stock
removal.
The optimum feeding angle for stock
removal is about 60°
You will get the best finish however,
when sanding in line with the grain of
the wood on the final one or two
passes.
You get a faster stock removal when
sanding several passes with less
depth of cut at a higher feedrate.
For best results clean the sanding
paper regularly (see chapter 7.3).
Abrasive life can also be increased by
reversing the strip.
Replace worn or torn sanding paper
immediately.
It may take some experimentation to
determine the proper depth of cut,
given the variables of abrasive grit,
type of wood and feed rate.
Switch machine off if no further
sanding is to be done immediately
afterwards.
22-44 OSC with Sand Smart:
The 22-44 OSC drum sander is
equiped with motor load monitoring to
avoid excessive material removal and
motor stalling.
Whenever the drum motor runs on full
power the feed rate is automatically
reduced and the red Led is lit.
Note: Reduction of feedrate increases
the risk of burining the wood.
You get a better result at high feedrate
and small depth of cut.