Maintenance; General; Setting The Guide Play; Main Spindle - Proxxon PD 400 Manual De Uso

Maintenance

Before conducting maintenance or cleaning work, switch off
the machine at the main switch. Do not use compressed air
for cleaning as this can cause cuttings to enter the guides.

General

After use, thoroughly clean all cuttings from the machine using
a paintbrush or hand brush.
Grease or oil all parts according to the lubrication plan
(Fig. 17). When oiling the contact surfaces, move the slide
backwards and forwards several times by hand so that oil ent-
ers the guides.
A = oil / lubricate each time before use
B = oil / lubricate once a month
Also oil the flange unit of the leadscrew in the gearbox
through the hole provided for this purpose.

Setting the guide play

Regular lubrication of the guides does not prevent evidence of
play in the guides after a certain amount of time.
1. Release adjustment screw lock nuts 1 (Fig. 18) for the top
slide 2, screw in all adjustment screws 3 evenly until play is
eliminated and re-tighten the lock nuts.
2. Repeat this procedure for cross-slide 4.
The guide can be clamped using screw 5.
3. Turn the machine upside down and unscrew stud 1
(Fig. 19) slightly.
4. Tighten clamping screws 2 slightly to reduce the play.
5. Check whether the support can still be pushed easily. If the
support is difficult to move, increase the play a little.

Main spindle

The 2 taper roller bearings of the spindle are maintenance-free
for at least 6000 hours at minimum speed and 1800 hours at
maximum speed. If slight play is evident after this period, the
bearings can be adjusted by a specialist.

Predetermined breaking point of the leadscrew

The shear pin (see in explosion drawing, page 88, item 81) in
the flange unit (item 71) could shear off if the machine jams or
is otherwise overloaded. This pin is designed as a predetermi-
ned breaking point and must be replaced (you can obtain
shear pins from us as spare parts). To replace the shear pin,
remove the change gear and drive the remaining pieces of the
broken shear pin out of the leadscrew and the top-mounted
sleeve (item 82) using a suitable tool (mandrel, drift or similar).
When driving the new shear pin into the hole, ensure that it is
flush and does not protrude; otherwise it will be difficult to put
the gearwheel back in place. Also ensure that the pin is sea-
ted only on one side, i.e. the load is only on one side of the
shearing point.
- 20 -
Important
Note:

Disposal:

Please do not dispose of the device in domestic waste! The
device contains valuable substances that can be recycled. If
you have any questions about this, please contact your local
waste management enterprise or other corresponding munici-
pal facilities.

Accessories for Lathe PD 400

The following accessories are not included in the standard
equipment.
Before installing accessories, switch off the machine at the
main switch.

Centre turning attachment

Installing the centre turning attachment:
Longer work pieces are clamped between the brad points of
the main spindle and tailstock. The work piece must be
provided with a centre bore on both faces.
An exactly cylindrical work piece is only achieved if the points
align in the horizontal position.
1. Remove three fastening screws from the three-jaw chuck
and remove chuck.
2. Thoroughly clean the fit for the drive plate 3 (Fig. 20), the
centrepoint 1 and its fit in the main spindle.
3. Insert the centrepoint 1 in the fit of the main spindle. Insert
the second centrepoint in the tailstock.
4. Insert adapter 4 in the drive plate 3 and tighten the stud
lightly. Push both over the workpiece 5. Screw driver 2 into
the spindle flange.
5. Clamp the workpiece between the centrepoints. Push drive
plate 2 (Fig. 21) over the driver and fasten to the workpiece
using Allen key 1.
When using a centre fixed to the tailstock, regular lubrication
of the centre and centre bore is necessary to prevent overhea-
ting due to friction.
Removing the centrepoint:
6. Guide a suitable aluminium or brass rod through the main
spindle from left to right.
7. Hold the centre and release by lightly tapping the rod.
4-jaw chuck with individually adjustable jaws
Round, oval, square and irregularly shaped work pieces can
be clamped as it is possible to adjust the jaws individually.
Centric or eccentric clamping is possible. Unlike the three-jaw
chuck, centring of the work piece must be performed
manually.
Note:
Important
Note:
Important
Note: