Manual Metabo BAS 261 Precision (page 14 of 92) (All languages)

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ENGLISHen

– a suitable guide for firm support when

cutting thin stock laid on edge.

 Before starting work, check to see that the

following are in proper working order:

–saw belt;

– upper and lower belt guard.

 Replace damaged parts immediately.

 Assume correct work position (the saw

blade’s teeth must point towards the

operator).

 Never cut several work pieces at the same

time – and also no bundles containing

several individual pieces. Risk of personal

injury if individual pieces are caught by the

saw blade uncontrolled.

Entanglement 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.

9.1 Set height of the belt guide

The height of the upper belt guide (24) must be

set:

– before each sawing procedure, to adjust to the

height of the work piece (the upper belt guide

(24) must be approx. 3 mm above the

workpiece during cutting);

– after adjustments of saw belt or saw table (e.g.

saw belt change, tensioning of the saw belt,

saw table alignment).

Danger!

Before adjusting the upper belt guide and saw

table tilt:

–switch machine OFF;

– wait until the saw belt has come to a

complete stop.

1. Release lock nut (23).

2. Turn setting knob (22) so that the upper belt

guide (24) is approx. 3 mm above the

workpiece

3. Retighten lock nut (23).

9.2 Sawing

1. If necessary, adjust the table tilt.

Risk of kickback (work piece is caught

by the saw belt and thrown against the

operator)! Do not jam any work pieces.

2. If necessary, use the ripping fence (17) or the

fence mitre (20).

Risk from tilting of work piece!

When cutting with the ripping fence and

inclined workpiece, the ripping fence has to

be mounted at the side of the workpiece

inclined downwards.

3. Tighten upper belt guide 3 mm above the work

piece. (For details see chapter 9.1).

Note:

Always make a trial cut in a piece of scrap to verify

settings; correct if necessary before cutting the

work piece.

4. Place work piece on the saw table.

5. Start saw.

6. Cut work piece in a single pass.

7. Switch off if no further cutting is to be done

immediately afterwards.

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 saw belt at

standstill. Wear gloves when changing belts.

Use only suitable saw belts (see "Technical

Specifications").

1. Remove rip fence (17)

2. Loosen the four wing screws on the fence

guide extrusion (16) and remove the fence

guide extrusion.

3. Open both housing doors.

4. Fold saw belt guard (7) forwards.

5. Position upper belt guide (24) at the very

bottom.

6. Turn the setting knob (19) anti-clockwise until

the saw belt is loose.

7. Remove dust guard strip (25) by lifting and

place to one side.

8. To remove the saw belt, guide it through

– the gap in the saw table (10),

– the belt guard at the upper belt guide (24),

– the side belt shaft and

– the belt guides

9. Fit a fresh saw belt. Check the correct

position: Teeth point towards the front (door

side) of the saw.

10.Centre saw belt on the rubber tyres of the

band saw wheels.

11.Turn the setting knob (19)clockwise until the

saw belt does not slip off any more.

12.Replace dust guard strip (25).

13.Fold lower belt guard (7) backwards (close).

Danger!

Close housing doors only when the lower belt

guard is in its closed position.

14.Close both housing doors.

15.Then:

– Tighten saw belt (see chapter 8.2);

– Align saw belt (see chapter 10.2);

– Set belt guides (see chapter 10.3 and 10.4);

– let saw test run for at least one minute;

– switch off the saw, pull the mains switch and

re-check the settings and adjust, if required.

10.2 Align saw belt (set run of saw belt)

If the saw belt 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 (26).

2. Turn setting knob (27):

– If the saw belt is to run more to the rear of the

saw: turn setting knob (27) clockwise.

– If the saw belt should run more towards the

front of the saw:

Turn the setting knob (27) anti-clockwise.

3. Retighten lock nut (26).

10.3 Align upper belt guide

The upper belt guide consists of:

– a thrust bearing (supporting the saw belt from

the rear),

– two guide bearings (providing lateral support).

These parts must be realigned after each saw belt

change and each saw belt 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 (29) for thrust bearing.

2. Align thrust bearing (28) (distance from thrust

bearing belt = 0.5 mm – when the saw belt is

moved by hand it must not touch the thrust

bearing)

3. Retighten screw (29) for thrust bearing.

Adjusting the guide bearings

4. Loosen screw (31) for guide bearing.

5. Move guide bearing (30) so that is gently

touching the saw belt.

6. Retighten screw (31) for guide bearing.

7. Set the guide bearing on the other side of the

saw belt in the same way.

10.4 Align lower belt guide

The lower belt guide consists of:

– a thrust bearing (supporting the saw belt from

the rear),

– two guide bearings (providing lateral support).

These parts need to be readjusted after every saw

belt 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 saw belt

guard (7).

Adjusting the thrust bearing

1. Loosen screw (33) for thrust bearing.

2. Align thrust bearing (32) (distance from thrust

bearing belt = 0.5 mm – when the belt is

moved by hand it must not touch the thrust

bearing)

3. Retighten screw (33) for thrust bearing.

Adjusting the guide bearings

4. Loosen screw (35) guide bearing.

5. Move guide bearing (34) so that is gently

touching the saw belt.

6. Retighten screw (35) for guide bearing.

7. Set the guide bearing on the other side of the

saw belt in the same way.

8. Close lower saw belt guard (7).

9. Close the lower housing door.

10. Care and Maintenance

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Metabo BAS 261 Precision Manual

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