Metabo BAS 505 Precision WNB Original Operating Instructions page 16

en ENGLISH
35
36
6. Tighten lock nut.
7.2 Mount saw
For a firm stand the saw must be mounted on a
stable supporting surface:
1. Drill four holes in the supporting surface.
2. Put fixing bolts through the base plate and
secure with nuts.
7.3 Installing the Saw Table
1. Fit the limit stop screw (36) to the underside of
the saw table.
2. Guide saw table over the band saw blade and
place it on the table trunnion.
3. Attach the saw table with two sets of four
screws (37) and washers to the table trunnion.
37
7.4 Tensioning the Band Saw Blade
Danger!
Too much tension can cause the band saw
blade to break. Too little tension can cause
the driven band saw wheel to slip and the
band saw blade to stop.
1. Raise upper blade guide fully ( see "opera-
tion").
2. Checking the blade tension:
Check tension by pushing with a finger,
halfway between table and upper blade guide,
against the side of the blade (the blade should
flex not more than 1-2 mm).
Check adjustment at the blade tension
indicator. The scale indicates the correct
adjustment in dependence on the band saw
blade width.
3. Correct tension if necessary:
turning the setting knob (21) counter-
clockwise increases the blade tension.
16
turning the setting knob (21) counter-
clockwise reduces the blade tension.
7.5 Installing the Fence Guide Extru-
sion
 Fasten the fence guide extrusion (12) with two
sets of four thumb screws and washers to the
saw table.
7.6 Installing the Rip Fence
The rip fence can be used on both sides of the
blade.
38
1. Place rip fence on the rip fence guide.
2. Tighten the lock lever (38) of the rip fence.
7.7 Connect chip extraction
Danger!
Some types of saw dust (e.g. oak, beech and
ash) can cause cancer when inhaled: work in
closed rooms only with a chip extraction unit
(air velocity at the suction nozzle of the saw
 20 m/s, air volume  460m
36
Caution!
Operation without a dust collector is only
possible:
 outdoors;
 for short-term operation
(up to 30 minutes maximum);
 with dust respirator.
 If no dust collector is used chips will
accumulate, which need to be removed
periodically.
Connect dust collector or industrial vacuum with a
suitable adaptor to the dust extraction port.
7.8 Changing the Band Saw Blade
Danger!
Risk of injury, even with the band saw blade
at standstill. Wear gloves when changing
blades.
Use only suitable saw belts (see "Technical
Specifications").
1. Loosen the four thumb screws and remove the
guide extrusion (12) for the rip fence.
21
12
3
/h).
12
2. Open the housing door.
3. Position upper belt guide (7) at the very bot-
tom.
21 6
4. Loosen the knurled nut (40) at the contact pro-
tection and push the contact protection in the
lowest position.
40
5. Open lower saw belt cover (39).
6. Loosen setting knob (21) until the band saw
blade is loose.
7. To remove the band saw blade, guide it
through
 the gap in the saw table,
 the blade guard on the upper blade guide
(7),
 the lower blade guard (39) and the
 the belt guides
.
Danger!
Use suitable transport device for transporting
tensioned, wider band saw blades.
8. Fit a fresh band saw blade. Check the correct
position: Teeth point towards the front (door
side) of the saw.
9. Centre band saw blade on the rubber tyres of
the band saw wheels.
10. Retighten the setting knob (21) until the blade
no longer slips.
11. Tighten band saw blade (see chapter "tension-
ing the band saw blade")
7
39