Metabo BAS 505 Precision WNB Manual De Instrucciones Original página 17

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12. Close the lower saw belt guard(39) and push
the contact protection into the uppermost posi-
tion or until the table edge and (40) tighten the
knurled nut.
13. Close the housing door.
14. Then:
 align the saw blade (see chapter "tensioning
the band saw blade");
 align band saw blade (see "Care and
Maintenance");
 let saw test run for at least one minute;
 stop saw, unplug and recheck settings.
15. fasten fence guide extrusion (12) to the saw
table using four wing nuts and washers.
7.9 Connection to Power Mains
Danger! High voltage
 Operate the saw in only in a dry environ-
ment.
 Operate the saw only on a power source
matching the following requirements (see
also "Technical Specifications"):
 Mains voltage and system frequency
must conform to the voltage and
frequency shown on the machine´s
rating label;
 fuse protection by a residual current
operated device (RCD) of 30 mA
sensitivity;
 outlets properly installed, earthed and
tested;
 three-phase outlets with neutral wire
installed;
Note: Check with your local Electricity
Board or your electrician if in doubt whether your
house service connection meets the require-
ments.
 Make sure the power supply cable is out of
the way, so that it does not interfere with the
work and does not pose a tripping hazard or
will get damaged.
 Protect the power supply cable from heat,
aggressive liquids and sharp edges.
 Use only rubber-insulated extension cables
of sufficient lead cross section (
2
(3 x 1.5 mm
, for machines with three-phase
2
motor: 5 x 1.5 mm
).
 Do not pull on the power supply cable to
unplug.
Change in direction of rotation (only
for design with three-phase motor):
Depending on phase sequence the band saw
blade may turn in the wrong direction. This
can cause the work piece being tossed away
when attempting to cut. Therefore, always
check direction of rotation after every
connection to the power supply.
If the direction of rotation is incorrect, the
electrical connection must be changed by a
qualified electrician!
1. When the saw is assembled and all safety
devices are installed, connect it to the power
supply.
2. Start saw briefly and turn OFF immediately
again.
3. Note direction of rotation of the band saw
blade: The band saw blade must move
from top to bottom in the cutting area.
4. If the band saw blade turns in the wrong direc-
tion, unplug the power supply cable at the saw.
5. Have the electrical connection changed by a
qualified electrician!
8. Operation
Danger!
To reduce the risk of personal injury as much
as possible, the following safety
recommendations should be observed when
operating the saw.
 Use personal protection gear:
 dust respirator;
 ear protection;
 safety goggles.
 Cut only one work piece at a time.
 Always hold the work piece down on the
table.
 Do not jam any work pieces.
 Do not try to slow the band saw blade down
or stop it by pushing the work piece against
the saw blade from the side.
 Sawing of curved and irregular workpieces:
hold workpiece firmly on the table and push
forward uniformly. Keep your hands in the
safe area.
 If the type of work requires, use the follow-
ing:
 Push stick – if the distance stop profile –
band saw blade
120 mm;
 work support – for long stock, which
would otherwise fall off the table on
completion of the cut;
 dust collector;
 a circular cutting device when cutting
circles;
 a guide when cutting small wedges;
 an appropriate jig when cutting round
stock, to keep it from turning;
 a suitable guide for firm support when
cutting thin stock layed on edge.
 Before starting work, check to see that the
following are in proper working order:
 band saw blade;
 upper and lower blade guard.
 Replace damaged parts immediately.
 Assume correct work position (the band
saw blade's teeth must point towards the
operator).
 Never cut several work pieces at the same
time – and also no bundles containing sev-
eral individual pieces. Risk of personal
injury if individual pieces are caught by the
saw blade uncontrolled.
Entangelement hazard!
 Do not wear loose clothing, jewellery, or
gloves, which may get caught and wound up
by revolving machine parts.
 Contain long hair with a hairnet.
 Never cut stock to which ropes, cords,
strings, cables or wires are attached or
which contain such materials.
8.1 Upper blade guide adjustment
The height of the upper blade guide (7) needs to
be adjusted: prior to every cutting operation, to
accommodate the height of the work piece (the
upper blade guide should be set approx.
 3 mm above the work piece);
 after adjustments of band saw blade or saw
table (e.g. band saw blade change, tensioning of
the band saw blade, saw table alignment).
Danger!
Prior to setting the upper belt guide and the
saw table inclination, switch off the device
and wait until the saw blade is at a standstill.
1. Loosen the screw (41) .
2. Adjust the upper belt guide (7) with the rotary
knob (5) to the desired height.
3. Retighten the screw (41) .
Cutting speed adjustment
1. Open the lower housing door.
2. Slacken V-belt by turning the crank anti-clock-
wise.
3. Put V-belt on the required pulley of the driving
wheel (lower band saw wheel) and the corre-
sponding motor pulley – note label inside the
lower housing door.
Caution!
The V-belt must run either on both front or
both rear pulleys. Never have the V-belt run
diagonally!
430 m/min
1020 m/min
 V-belt on front pulley
= low speed, high torque.
 V-belt on rear pulleys
= high speed, low torque.
4. Tighten the V-belt again by turning the crank
counter-clockwise (halfway between the pul-
leys the V-belt should flex approx. 10 mm ).
5. Close the lower housing door.
8.2 Sawing
1. Check band saw blade tension (see chapter
"tensioning the band saw blade")
2. If necessary, adjust the table tilt.
3. Select rip fence and table tilt for the type of
cutting operation to be carried out.
Hazard due to jamming of the tool!
When cutting with the ripping fence and
inclined workpiece, the ripping fence has to
be mounted at the side of the workpiece
inclined downwards.
4. Set upper blade guide 3 mm above the work
piece.
ENGLISH en
5
41
7
17
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