Bedienungsanleitung DeWalt DW739 (Seite 21 von 76) (Deutsch, Englisch, Holländisch, Dänisch, Französisch, Italienisch, Portugiesisch, Spanisch, Polnisch, Türkisch, Schwedisch, Norwegisch, Finnisch)

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• Insert one hex bolt M8 x 20 (28) with washer into the two front holes

and fasten them hand-tight (fig. D3).

• Tilt the table to a 45° angle.

• Insert one hex bolt M8 x 20 (28) with washer into the two rear holes

(fig. D4).

• Tighten all four bolts using the box spanner.

• Press the table insert (4) into place (fig. D5).

• Swing the connecting plate (26) back into place (fig. D1).

• Completely raise the blade guard (3) by turning the height adjuster (11)

clockwise (fig. A).

• Use a set square to check that the table is at a right angle to the saw

blade when in the horizontal position. If adjustment is needed, loosen

the table tilt locking lever and adjust the grub screw (29) as required

(fig. D6).

Mounting a blade (fig. A, D1, D5, E1 - E4)

The teeth of a new blade are very sharp and can be

dangerous.

• Unscrew the two retention knobs (8) and open the hinged cover (5) (fig. A).

• Swing back the connecting plate (26) which covers the blade slot in the

table (fig. D1).

• Remove the table insert (4).

• Guide the blade though the blade slot in the table. Make sure that the

teeth point to the front of the machine and downwards in the working

area (fig. E2).

• Carefully insert the blade into the blade guard slot (30) while turning it

90° (fig. E3 & E4).

• Position the blade between the guide blocks (19) and (21).

• Move the blade around the band wheels (31) and (32) (fig. E2).

If necessary, lower the upper band wheel by turning the blade tension

adjuster (6 in fig. A) counterclockwise.

• Mount the table insert (4) (fig. D5).

• Swing the connecting plate (26) back into place (fig. D1).

• Adjust the blade tension, the guide blocks and the support bearings as

described below.

Adjusting the blade tension (fig. F1)

The correct tension depends on the width of the blade used. Refer to the

table on the machine.

• Adjust the blade tension using the blade tension adjuster (6) until the

scale indicates the tension corresponding to the blade width.

Adjusting the blade position (fig. A, F2 & F3)

The blade must be centred on the rim of the band wheels.

• Open the hinged cover as described above.

• While rotating the upper band wheel with one hand, slightly rotate the

bladecentring adjuster (7) with the other (fig. A & F3).

Do not touch the blade but rotate the upper band wheel with

your finger on one of the spokes.

Adjusting the blade guide blocks and rear support bearings

(fig. B, G1 - G3)

During the sawing operation, the blade is exposed to frontal and lateral

forces. The rear support bearings (17 in fig. G1) are positioned 0.5 mm

behind the blade to control the blade front-to-back movement.

The 45° and 90° guide blocks are positioned 0.1 mm from the blade to

control the lateral blade position.

• Remove the table insert and tilt the table to 45°.

• Slacken the grub screws (18) and position the rear support bearings

(17) away from the blade (fig. G1).

• Adjust the knurled knob (33) to position the blade guide blocks just

behind the blade teeth (fig. G1).

• Position the rear support bearings (17) 0.1 mm behind the blade and

tighten the grub screws (18) (fig. G1).

• Slacken the grub screws (20) and (22) and insert the blade guide

blocks (19) and (21) in the holders (fig. G1).

• Set the guide blocks to a distance of approx. 0.5 mm from the blade.

• Tighten the grub screws (20) and (22) (fig. G1).

Changing speed

DW738 (fig. H1 - H3)

Your DW738 bandsaw has two speeds. The low speed is obtained with

the drive belt on the small drive pulley (34) (fig. H2). The high speed is

obtained with the drive belt on the large drive pulley (35) (fig. H2).

For speed rates, refer to the technical data.

• Slacken the motor location bolt (13) and move the motor to relax the

drive belt (fig. H1).

• Ease the drive belt from the wheel pulley and subsequently from the

drive pulley (34) or (35) (fig. H3).

• Reinstall the drive belt on the wheel pulley and the required drive pulley (34)

or (35).

• Reposition the motor to obtain the correct drive belt tension and

secure the motor location bolt (13) (fig. H1).

DW739 (fig. A & J)

The speed of your DW739 bandsaw is infinitely variable over a wide range

(refer to the technical data).

• With the motor running, turn the blade speed adjuster (14) to obtain the

desired speed (fig. A2).

Do not force the speed adjuster beyond its range.

Mounting and adjusting the rip fence (fig. A, K1 - K5)

• Mount a fence clamp piece (36 in fig. K1) on each end of the fence

(10 in fig. A) using the M6 x 65 bolts (37 in fig. K1) as shown (fig. K1 & K2).

• Put a D6 washer on each of the bolts and screw the plastic knobs (38)

onto the bolts (fig. K3).

• Slide the fence onto the table as shown (fig. K4). Make sure that the

V-shaped lug (39) engages in the groove in the table (fig. K5).

• To set the fence, slacken the knobs (38) and slide the fence into the

desired position using the scale on the table (fig. K3).

• Secure the fence in position by first tightening the front knob, then the

rear knob. This ensures that the fence is aligned with the blade.

Instructions for use

• Always observe the safety instructions and applicable

regulations.

• Do not force the cutting action. Allow the motor to reach full

speed before cutting.

• Select an appropriate saw blade.

• Never run the machine without the guards in place.

• Do not overtension the blade.

The attention of UK users is drawn to the “woodworking machines

regulations 1974” and any subsequent amendments.

Switching ON and OFF (fig. E1)

For reasons of security, the ON/OFF-switch (1) works only with the safety

key (2) inserted. It also offers a no-volt release function: should the power

be shut off for some reason, the switch has to be deliberately reactivated.

To operate:

• I = ON The tool now works in continuous operation.

• 0 = OFF

DeWalt DW739 Seite 21

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