Care And Maintenance - Metabo BAS 318 Precision WNB Manual De Instrucciones

Note:
Always make a trial cut in a piece of scrap to verify
settings; correct if necessary before cutting the
work piece.
5. Place work piece on the saw table.
6. Start saw.
7. Cut work piece in a single pass.
8. Switch off if no further cutting is to be done
immediately afterwards.

10. Care and Maintenance

Danger!
Prior to all servicing:
1. switch machine OFF;
2. Wait until the saw has come to a complete
stop.
3. Unplug power cable;
– Check to see that all safety devices are
operational again after each service.
– Replace defective parts, especially of safety
devices, only with genuine replacement parts.
Parts not tested and approved by the
manufacturer can cause unforeseen damage.
– Repair and maintenance work other than
described in this section should only be
carried out by qualified specialists.
10.1 Change saw belt
Danger!
Risk of injury, even with the band saw blade at
standstill. Wear gloves when changing
blades.
Use only suitable band saw blades (see
"Technical Specifications").
1. Remove rip fence (26)
2. Loosen the four wing screws on the fence
guide extrusion (25) and remove the fence
guide extrusion.
3. Open both housing doors.
4. Fold blade guard (8) forwards.
5. Position upper blade guide (39) at the very
bottom.
6. Loosen quick release lever (34) until the band
saw blade is loose.
7. Remove dust guard strip (41) by lifting and
place to one side.
8. To remove the band saw blade, guide it
through
– the gap in the saw table (14),
– the blade guard at the upper blade guide (39),
– the side blade shaft and
– the blade guides
.
9. Fit a fresh band saw blade. Check the correct
position: Teeth point towards the front (door
side) of the saw.
10.Centre band saw blade on the rubber tyres of
the band saw wheels.
11.Retighten the quick release lever (34) until the
blade no longer slips.
12.Replace dust guard strip (41).
13.Fold lower blade guard (8) backwards (close).
Danger!
Close housing doors only when the lower
blade guard is in its closed position.
14.Close both housing doors.
15.Then:
– Tighten band saw blade (see chapter 8.2);
– Align blade (see chapter 10.2);
– Set blade guides (see chapter 10.3 and 10.4);
– let saw test run for at least one minute;
– stop saw, unplug and recheck settings.
10.2 Align band saw blade (set run of
band saw blade)
If the band saw blade does not run in the centre of
the rubber tyres, the tracking needs to be
corrected by adjusting the tilt of the upper band
saw wheel:
1. Release lock nut (42).
2. Turn setting knob (43):
– If the band saw blade is to run more to the rear
of the saw: turn setting knob (43) clockwise.
– If the band saw blade is to run more to the
front of the saw: turn setting knob (43)
anticlockwise.
3. Retighten lock nut (42).
10.3 Align upper blade guide
The upper blade guide consists of:
– a thrust bearing (supporting the band saw
blade from the rear),
– two guide bearings (providing lateral support).
These parts must be realigned after each blade
change and each blade alignment:
Note:
Periodically check all bearings for wear, if
necessary replace both guide bearings at the
same time.
Adjusting the thrust bearing
1. Loosen screw (45) for thrust bearing.
2. Align thrust bearing (44) (distance from thrust
bearing blade = 0.5 mm – when the blade is
moved by hand it must not touch the thrust
bearing)
3. Retighten screw (45) for thrust bearing.
Adjusting the guide bearings
4. Loosen screw (47) for guide bearing.
5. Move guide bearing (46) so that is gently
touching the band saw blade.
6. Retighten screw (47) for guide bearing.
7. Set the guide bearing on the other side of the
band saw blade in the same way.
10.4 Align lower blade guide
The lower blade guide consists of:
– a thrust bearing (supporting the band saw
blade from the rear),
– two guide bearings (providing lateral support).
These parts need to be readjusted after every
band saw blade change or tracking adjustment:
Note:
Periodically check thrust bearings and guide
bearings for wear, if necessary replace both guide
bearings at the same time.
Preparation
1. Open lower housing door and lower blade
guard (8).
Adjusting the thrust bearing
1. Loosen screw (49) for thrust bearing.
2. Align thrust bearing (48) (distance from thrust
bearing blade = 0.5 mm – when the blade is
moved by hand it must not touch the thrust
bearing)
3. Retighten screw (49) for thrust bearing.
Adjusting the guide bearings
4. Loosen screw (51) guide bearing.
5. Move guide bearing (50) so that is gently
touching the band saw blade.
6. Retighten screw (51) for guide bearing.
7. Set the guide bearing on the other side of the
band saw blade in the same way.
8. Close lower guard (8).
9. Close the lower housing door.
10.5 Replacing the band saw tyre
Regularly check the plastic tyres on the band saw
rollers for wear. Replace only in pairs:
1. Remove blade (see chapter 10.1).
2. Lift band saw tyre with a small screwdriver,
then pull off the band saw wheel.
3. Mount new band saw tyres and reinstall the
band saw blade.
10.6 Table insert change
The table insert (15) must be changed if the
sawing gap is damaged.
1. Remove screws at table insert.
2. Remove table insert.
3. Insert new table insert.
4. Tighten the screws at the table insert.
10.7 Cleaning the Saw
1. Open the lower housing door.
2. Remove and empty the chips holder (7).
3. Remove chips and saw dust with brush or
vacuum from:
– inside of the lower band saw housing;
– blade guides;
– operating elements
4. Replace chips holder (7).
10.8 Storage
Danger!
Store saw where
– it cannot be used or tampered with by
unauthorized persons and
– cannot injure anyone standing on the
device.
Caution!
Do not store the saw outdoors, in unprotected
areas or in damp or wet locations.
11. Accessories
Use only genuine Metabo accessories.
Use only accessories that fulfil the requirements
and specifications listed in these operating
instructions.
A Band saw blade for wood, plastic - curved cuts
B Band saw blade for wood, plastic - universal
cuts
C Band saw blade for wood, plastic - straight
cuts
D Band saw blade for non-ferrous metals, foams
E Circle cutter (max. cutting height 105mm)
F Belt grinder
G Abrasive belt K80 (suitable for use with belt
grinder 631333000)
H Abrasive belt K120 (suitable for use with belt
grinder 631333000)
I Metabo all-purpose vacuum cleaner and
extraction units
J Roller stand RS 420
For a complete range of accessories, see
www.metabo.com or the catalogue.
12. Repairs
Danger!
Have your power tool serviced by a qualified
repair person using only identical
replacement parts. This will ensure that the
safety of the power tool is maintained.
If the mains connection lead of this device is
damaged, it must be replaced with an original
Metabo mains connection lead.
Contact your local Metabo representative if you
have Metabo power tools requiring repairs. See
www.metabo.com for addresses.
ENGLISH en
0909029252
0909029244
0909029260
0909029279
631327000
631333000
0909030528
0909030536
(see catalogue)
0910053353
15