Prowork PSB 401/1 Mode D'emploi page 14

Anleitung PSB 401-1 SPK 1 Prowo
GB
screw (16) back down again. The tension is
properly set when the V-belt flexes in the middle
by approx. 1 cm when pressed.
b Close the V-belt cover and screw down using the
screw (16).
The V-belt cover (7) must always be locked tight, as
the machine is equipped with a safety switch that
only allows the machine to be turned on when the V-
belt cover (7) is closed.
Caution! Never let the pillar drill run when the V-belt
cover is open. Always pull the mains plug before
opening the cover. Never touch the V-belt when it is
rotating.
7.5 Drill depth stop (Fig. 8)
The drill depth can be set exactly by means of the
depth stop (14) and a scale (a) on the front side of
the machine head. The machine must be switched
off in order to set the depth stop.
b Insert the required bit (7.2) and turn the setting
screws up.
b Using the handle, move the bit so that its tip just
touches the surface of the workpiece and read
the value indicated on the scale.
b Remove the workpiece.
b Add the required drill depth to the value you read
off the scale and use the handle to lower the bit
until the value you calculated is indicated on the
scale.
b Turn down the lower setting screw as far as it will
go.
b Secure the setting by turning the upper setting
screw against the lower setting screw.
Important! When setting the drill depth of a
cylindrical hole you must add the length of the drill tip
7.6. Setting the angle of the drill table (Fig. 6)
b Slacken the carriage bolt (26) under the drill
table (4).
b Set the drill table (4) to the desired angle (which
can be read off the scale on the top side of the
drill table).
b Tighten down the carriage bolt (26) in order to
lock the drill table (4) into this position.
7.7. Setting the height of the drill table (Fig. 1/2)
b Slacken the tightening screw (5).
b Set the drill table (4) to the desired height by
pressing down or lifting up and simultaneously
(gently) pushing to the left or right.
b Screw the tightening screw (5) back down again.
7.8. Locking the workpiece into position (Fig. 1)
As a general rule, use a machine vice (14) or another
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02.06.2004 11:03 Uhr Seite 14
suitable clamping device to lock a workpiece into
position.
Never hold the workpiece in place with your
hand!
When drilling, the workpiece should be able to travel
on the drill table (4) for self-centering purposes.
Ensure that the workpiece cannot rotate. This is best
achieved by placing the workpiece/machine vice on a
sturdy block.
Caution! Sheet metal parts must be clamped in to
prevent them from being torn up. Properly set the
height and angle of the drill table for each workpiece.
There must be enough distance between the upper
edge of the workpiece and the tip of the drill bit.
7.9. Drilling wood
Please note that sawdust must be properly
evacuated when working with wood, as it can pose a
health hazard. Ensure that you wear a suitable dust
mask when performing work that generates dust.
7.10. Working speeds
Ensure that you drill at the proper speed. Drill speed
is dependent on the diameter of the drill bit and the
material in question.
The table below acts as a guide for selecting the
proper speed for various materials.
Note: The drill speeds specified are merely
suggested values.
Drill bit Ø Cast iron Steel Iron Aluminium
3 2550 1600 2230 9500
4 1900 1200 1680 7200
5 1530 955 1340 5700
6 1270 800 1100 4800
7 1090 680 960 4100
8 960 600 840 3600
9 850 530 740 3200
10 765 480 670 2860
11 700 435 610 2600
12 640 400 560 2400
13 590 370 515 2200
14 545 340 480 2000
16 480 300 420 1800
18 425 265 370 1600
20 380 240 335 1400
22 350 220 305 1300
25 305 190 270 1150
GB
Bronze
8000
6000
4800
4000
3400
3000
2650
2400
2170
2000
1840
1700
1500
1300
1200
1100
950