User manual

-21-
spindle blocking during operation, please switch offthe
machine
immediately and configurethe feed and infeed for fur-
ther machining to avoid overloading of the machine.
Caution!
Beforeinserting the mains plug, please check if the information
on the rating plate matches the local conditions of your mains
supply
.Ifthey do not match, then damage or hazards during
work could be result!
Caution!
Always wear hearing protection and protective goggles while
working!
Caution!
Av
oid abnormal body posture! Make sureyou stand securely
and can keep your balance.
Caution!
Please comply with the following when commissioning and
working
with the PD 250/E: Your machine is equipped with an
automatic safety shutdown and can only be operated when the
chuck guardisfolded down! As soon as the chuck guardis
folded up during operation, the motor will shut offautomatical-
ly! Only work with afolded down chuck guard! If the guardis
defective, the machine may no longer be operated!
Avoid unnatural body positions. Ensurethat you arestanding in
asafe position and keep your balance.
1. Set selection switch 2(Fig. 2) to "0" position.
2. Switch on main switch 1. The function display should now
illuminate.
3. Turn the selection switch 2tothe right for normal turning.
4. Turn the selection switch to the left for anti-clockwise
rotation.
Important
Only switch on when the machine is stationary.
5. When you have finished working, switch offthe machine
again using the main switch. Only then is the machine com-
pletely disconnected from the mains.
Longitudinal turning
Note:
Turning parallel to the rotational axis and machining cylindrical
objects arethe main uses of alathe.
1. Select the spindle speed according to the table on your
lathe.
2. Adjust the required speed by shifting the belt in the drive
gearbox (see previous section).
3. Clamp aright side tool 2(Fig. 14) in the tool holder (see pre-
vious section).
4. Switch offthe automatic feed 3.
5. Move the support from the right to the left of the work piece.
6. Adjust the cutting depth using the cross-slide 1.
Important
Beforeswitching on the machine, manually check whether the
spindle, chuck and work piece arerunning free.
Do not allow the support or turning tool to collide with the
lathe
chuck.
7.
Switch on the machine (clockwise rotation).
8. Manually feed or switch on the automatic feed 3, do not
overload
the machine.
Note:
If the top slide is not necessary,itisadvisable to clamp it with
the
screw 4(Fig. 14). The turning performance is improved by
eliminating play.
Face turning
Note:
This
method of working is used to turnoff the face of awork
piece.
1. Adjust the right side tool by approx. 2° to 3° (Fig. 15).
2. Move the cross-slide from outside inwards (to the centre)
with the turning tool.
Important
The cutting speed from outside inwards differs considerably
for work pieces with larger diameters. Therefore, push the
cross-slide slowly and sensitively.
Taper turning
The top slide (Fig. 16) is equipped with ascale and can be swiv-
elled by 45° on either side of zerofor taper turning. To do so,
release fastening screw 1, adjust top slide and then re-tighten.
Cutting offawork piece
1. Clamp the cut-offtool at right angles in the tool holder.
Important
Give the cut-offtool as short an overhang as possible (half of
the diameter of the work piece +1mm). Similarly,give the
work piece as short an overhang as possible.
Note the exact centreheight of the cut-offtool. Work at low
speeds and cool blade as often as possible.
2. Sensitively move the cross-slide from outside inwards (to
the centre) with the turning tool.
Machining longer work pieces with tail-
stock and centre
Important
If the chuck projection is greater than three times the diame-
ter of the work piece, the work piece must be held at the right
end by the tailstock and centre.
For this purpose, acentreboremust be drilled on the right side
of the work piece.
1. Face turnthe right face.
2. Insert the drill chuck (accessories) in the tailstock and
clamp the centring drill.