User manual

-18-
Description of the machine
The PROXXON lathe PD 250/E is an extensible system which
consists
of
•solid shaft electronics for high torques over the entirespeed
range
•a
utomatic feed
•l
athe chuck and
•rotating centre
for machining steel, brass, aluminium and plastics.
It
can also be used for face turning, longitudinal turning and
thread cutting.
The machine is also suitable for boring, milling work and
grooving by using the appropriate accessories.
The
ribbed, grey cast iron machine bed with ground prismatic
guideways ensures vibration-free work.
Technical data
Centredistance 250 mm
Centreheight 70 mm
Height above support 43 mm
Holding capacity
-Inner jaws 2-27mm, max. 75 mm
–Outer jaws 25 -71mm
Cross-slide adjustment 60 mm
Topslide adjustment 45 mm
Spindle passage 10.5 mm
Nose support on chuck side MK2
Tool holder 8x8 mm
Machine dimensions 560x270x170 mm
Weight approx. 10 kg
Possible thread leads 0.5/0.625/0.7/0.75
0.8/1.0/1.25 and 1.5 mm
Spindle speeds
–byshifting the V-belt 300/900/ and 3000 rpm
–bycontrol 25% to 100%
Feed 0.05 and 0.1 mm/revolution
Sleeve motion 30 mm
Sleeve for morse taper MK 1
Motor
Voltage: 230 Volt, 50/60 Hz,~
Power consumption 140 Watt
Noise emission 70 dB (A)
Only to be operated in closed rooms!
Do not dispose of the electrical device in the
household waste!
Always work with hearing protection!
We
ar safety glasses!
Installation and setting up
The
standardequipment of the PROXXON Lathe PD 250/E con-
sists of the following parts:
•M
etal working lathe complete with motor,automatic feed
and triple jaw chuck including chuck key and chuck guard
and
accessories.
•rotating centre
•t
ool kit
•change gear kit for thread turning
•tool holder,
•Removable toothed belts.
The floor space must be even, vibration-free and stable. The
machine must be fastened to astable work bench using the
bores provided.
Important
When lifting the machine, ensurethat the plastic cover of the
drive gearbox is closed. If it is not, the cap may break.
All naked metal parts aresupplied in acorrosion protection
preservative.
This preservative must be washed offwith paraffin oil before
using for the first time.
Subsequently oil all polished guides and spindles well. Fasten
the chuck guardwith screws.
Operating the handwheels
Important
If the support will not move easily,release screw 1(Fig. 3)
slightly.
Note:
The handwheels for the leadscrew,cross-slide, top slide and
tailstock sleeve produce a1mmfeed when turned once.
Important
If the automatic feed is switched on, manual adjustment of the
support is not possible.
1. Turn the handwheel 2(Fig. 3) for the cross-slide, the slide
and the tool holder move at right angles to the bed.
Example: One turnofthe handwheel
=1mmadvance
=2mmchange in diameter
2. Turn the handwheel 3for the top slide, the top slide moves
parallel to the bed.
3. Turn the handwheel 1(Fig. 4) for the support adjustment,
the support 2moves lengthwise.
4. Turn the handwheel 1(Fig. 5) for the sleeve, the sleeve
moves lengthwise.