Scheppach DP19Vario Traduccion Del Manual De Instrucciones Originale página 33

Drilling depth stop, Fig. 15a
The drill spindle has a rotatable scale ring (19) for set-
ting the drilling depth. Only set up work while stopped.
• Press the drill spindle down until the drill tip lies on
the workpiece.
• Loosen the clamping screw (18) and turn the scale
ring (19) forwards until it stops.
• Turn the scale ring (19) back by the desired drilling
depth and fix it with the clamping screw (18).
Attention! When setting the drilling depth of a cylindri-
cal hole, you must add the length of the drill tip.
Setting the inclination of the drilling table, Fig. 1, 15
• Loosen the hexagonal bolt (20) under the drilling
table (4).
• Set the drilling table (4) to the desired angle.
• Tighten the carriage bolt (20) again to fix the drilling
table (4) in this position.
Setting the height of the drill table, Fig. 16
• Loosen the clamping screw (3).
• Move the drilling table to the desired position using
the crank handle (16).
• Retighten the clamping screw (3).
Setting the spindle return spring, Fig. 17
The spindle return spring may have to be set, as it's
tension has changed and therefore, the spindle moves
back too quickly or too slowly.
1. Lower the table for more space to work.
2. Work on the left of the drill.
3. Insert a screwdriver into the front groove (1) and
keep this in position.
4. Use an open-ended spanner (size 14) to remove
the outer nut (3)
5. With the screwdriver still in the groove, loosen the
inner nut (4) until the notch releases from the hub
(6). ATTENTION, springs are tensioned!
6. Turn the spring cap (2) carefully in an anti-clock-
wise direction using the screwdriver until you can
press the groove (1) into the hub (6).
7. Lower the spindle into the lowest position and keep
the spring cap (2) in position. Once the spindle
moves up and down as you require, re-tighten the
inner nut (4).
8. If it is too loose, repeat steps 3-5. If it is too tight,
repeat step 6 in reverse order.
9. Use an open-ended spanner to secure the outer
nut (3) against the inner nut (4).
10. NOTE: Do not over-turn and do not limit the range
of movement of the spindle!
Axial play for the spindle, Fig. 18
When the spindle is in the bottom position, turn it man-
ually. If you determine that the play is excessive, pro-
ceed as follows:
1. Loosen the counternut (21).
2. Turn the screw (22) clockwise in order to compen-
sate for the play without impairing the upwards
and downwards movement for the spindle (a small
amount of play is normal).
3. Re-tighten the counternut (21).
Tensioning the workpiece
Always clamp workpieces firmly using a machine vice
or suitable clamping equipment. Never hold workpiec-
es by hand! When drilling, the workpiece should be
movable on the drilling table (4) so that self-centering
can take place. Always secure the workpiece against
twisting. The best way to do this is to place the work-
piece or machine vice against a fixed stop.
Attention! Metal parts must be clamped so that they
cannot be pulled up. Depending on the workpiece, cor-
rectly adjust the height and inclination. There must be
enough distance between the top of the workpiece and
the tip of the drill.
Working speed
Ensure correct speed during drilling. This depends on
the drill diameter and the material.
The list below will help you choose speeds for different
materials.
The speeds indicated are only guidelines.
Drill
diameter
3
4
5
6
7
8
9
10
11
12
13
14
16
18
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Grey
cast Steal Iron Aluminium
iron
2550 1600 2230 9500
1900 1200 1680 7200
1530 955 1340 5700
1270 800 1100 4800
1090 680 960 4100
960 600 840 3600
850 530 740 3200
765 480 670 2860
700 435 610 2600
640 400 560 2400
590 370 515 2200
545 340 480 2000
480 300 420 1800
425 265 370 1600
Bronze
8000
6000
4800
4000
3400
3000
2650
2400
2170
2000
1840
1700
1500
1300
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