Operation - Scheppach DM500T Manual Del Usuario

10. Operation

Selecting the speed (Fig. 3)
m ATTENTION!
The mains plug shall not be plugged in when ad-
justing the speed.
Select the correct speed:
• With new workpieces, select a low speed first. In-
crease the speed as the weight of the workpiece
increases.
• The selection of the correct speed depends on
several factors, e.g. material, diameter, length and
unbalance of the workpiece. In principle: Choose
a low speed for hard timber, non-round, long or
large-diameter workpieces.
• Use the table as a guide when selecting the speed:
The workpiece diameter is indicated on the x-axis.
The speed can be read off the y-axis. Go up vertically
from the diameter of the workpiece and read off the
speed where an imaginary perpendicular line meets
the curve.
1. Loosen the two locking screws (19) on the two
gearing covers (20).
2. Open the gearing covers (20).
3. Loosen the locking screw (21) of the motor unit
with the Allen key (12).
4. Lift the motor unit (22) by operating the lever (23)
to relieve the load on the V-belt (25).
5. Fix the motor unit (22) by tightening the locking
screw (21).
6. Place the V-belt (25) in the desired groove of the
drive pulley (24) to achieve the specified speed:
2600
1760
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1260
890
The V-belt must lie in the same groove on the
upper and lower drive pulley.
Note: The two gearing covers (20) are equipped
with an interlock switch (26). The interlocking
switches (26) are actuated automatically when
the gearing covers (20) are closed. The device
cannot be switched on if a gearing cover (20) is
not closed correctly.
7. Loosen the locking screw (21) and lower the lever
with the motor unit to tighten the V-belt.
8. Tighten the locking screw (21).
9. Close the gearing covers (20). Secure the gearing
covers with the locking screws (19).
Securing the workpiece
Securing with the 4-prong centre tip (1) and tail-
stock (5) (Fig. 1)
1. Draw a diagonal line at both ends of the work-
piece to locate the centre. The centre is where
the lines meet. Make a centring hole where the
4-prong centre tip and tailstock are to meet the
workpiece. This ensures a better hold.
2. Make an approx. 2 mm deep saw cut along the
diagonal to enable the 4-prong centre tip (1) to
grip better.
3. Fit the dismounted 4-prong centre tip (1) central-
ly to the centre of the workpiece. Lightly tap the
4-prong centre tip (1) into the workpiece with a
mallet (not included in the scope of delivery). Take
care to protect the thread of the 4-prong centre tip
(1) with a wooden board, for example.
4. Remove the 4-prong centre tip (1) from the work-
piece again.
5. Then (re)mount the 4-prong centre tip (1) onto the
device.
Note: The mounting and dismounting of the
4-prong centre tip can be found in the chapter
"Mounting/changing the workpiece holders".
6. Position the workpiece on the 4-prong centre tip
(1). Make sure that the 4-prong centre tip (1) en-
gages with the notch, otherwise secure clamping
is not guaranteed.
7. Loosen the lever (8) of the tailstock.
8. Slide the tailstock towards the 4-prong centre tip
(1) until it makes firm contact with the workpiece
to clamp it.
9. Fix the tailstock by pushing the lever (8) down.
10. Use the hand wheel (6) for fine adjustment.
11. Fix the position of the handwheel with the coun-
ternut (4).
GB | 25