46 Ferm
speeds the front belt has to be shifted from the intermedia-
te-pulley to the motor pulley. The intermediate gear keeps
driven and serves as flywheel for catching load variations.
BASIC PRINCIPLES OF THE TURNING
Before you can start turning, you have to know the most
important basic under standings. Otherwise there is a
change that the wrong turning speed or the wrong chisel is
chosen. With a number of tables and rules making the ma-
chine ready for turning is easier.
CLAMPING
Clamping the piece of work has to happen with care. Put
the piece of work in the chuck as far as possible and clamp
this one with the tightening wrench. If you clamp too hard
the chuck, basins or the piece of work can be damaged.
The same applies for the sliding tube. Tighten this one with
your hands, strong but not by force. Some clamping exa-
mples by which also the use of bores and chisel is made
clear, can be seen in fig.6, 7 and 8.
The represented standard three-chuck is self-centring.
Through this the axis of a small piece of work falls exactly
on the centerline, even if the dead centre is not used. With
a chuck belongs an inside basin (represented) and an
outside basin. These ones are used for inside clamping of
bigger diameters. Every basin has in the chuck the same
place. Place and basin are numbered!
In fig.6 a right side cutting chisel (up) and a right bended
roughing tool is used. The arrows indicate the starting di-
rection. The roughing tool can be used in longitudinal di-
rection and in cross direction and is often used for quickly
elimina ting many material. Fig 7. shows the use of a left
side cutting chisel and a blind boring chisel. Fig.8 shows a
clamp with dead center in a tail stock. A pointed chisel has
been used for an egal finish. Under this figure a clamping is
represen ted for making a bore with a spiral drill. Before-
hand you have to pre-drill with a center bore. This is a bore
from which the shank is much thicker than the crossing
frog. The boring gap which arises through that serves as a
center gap for both the center and the bore!
OPERATION OF MD-350 AND MD-500
Survey of the operation points with corresponding func-
tion (see fig.9,10 11 and 12).
1 Combined on/of direction of rotation switch with
emergency feature blocked.
Switching on the motor and chancing the direction of
stop rotation, the valve kan be blocked with a lock.
2. Drive cupboard closing
For opening and closing of the case
3. Carriage nut handle
By closing the carriage nut, the
automatic starting is
switched on.
4. Handwheel longitudinal adjustment.
For quickly moving the support to the left and to the
right. On the nonius can be written how big the adjust-
ment is in steps of 0,04 mm.
5. Clamping handle tool holder
By unloading the handle the bit block can be turned in
steps of 90 °
6. Clamping handle sliding bush.
For fixing the sliding bush.
7. Handwheel sliding bush
By turning the piece of work can be clamped between
the chuck and the center; also used for boring; on the
nonius can be written how big the adjustment is in
steps of 0.05 mm.
8. Handwheel crank tool slide
for the longitudinal adjustment of the tool slide; on the
nonius can be written how big the adjustment is in
steps of 0.04 mm.
9. Handwheel crank cross slide
for the longitudinal adjustment of the cross slide; on
the nonius can be written how big the adjustment is in
steps of 0.04 mm.
10 Clamping nut tail stock
for clamping the tail stock to the bed; for clamping the
upper part to the bottomplate.
11 Clamping nuts rotary plate
After the desired corner has been adjusted the rotary
plate parts can be clamped on each other with this.
12 V-belt tension roller
Makes it possible to change V-belts, to clamp and shift
them without dismantling the pulleys.
13 Main shaft pulley
Adjusting rotary speed.
14 Intermediate pulley
Adjusting rotary speed.
15 Motor pulley
Adjusting rotary speed.
16 Scissor
for assembling an intermediate change wheel and be-
ing able to adjust this in three directions. Coupling
transmission
17 Clamping bolt link adjustment
By adapting the position of the quadrant the interme-
diate drive wheel and the transmission change wheel
Ferm 7
Annex 5/Anlage 5
GEAR WHEEL, SPINDLE AND WASHERNUT DATA
ANGABEN ZU ZAHNRAD, SPINDEL UND UNTERLEGMUTTER
Nr. Parts/tooth Pitch/mod. Spec./Dim.
Nr. Zubehörteil/Zähne Gew. St. Bes./Abm.
MAIN SHAFT/HAUPTWELLE
1 Gear wheel/Zahnrad/51 /1 /D8
2 Gear wheel/Zahnrad/68 /1 /D8
3 Gear wheel/Zahnrad/25 /1 /D8
4 Gear wheel/Zahnrad/75 /1 /D8
5 Gear wheel/Zahnrad/76 /1 /D8
6 Gear wheel/Zahnrad/24 /1 /D8
7 Gear wheel/Zahnrad/24 /1 /D8
8 Gear wheel/Zahnrad/76 /1 /D8
9 Gear wheel/Zahnrad/56 /1 /D8
10 Gear wheel/Zahnrad/56 /1 /D8
CHANGE WHEELS/WECHSELRÄDERN
11 Gear wheel/Zahnrad/30 /1 /D8
12 Gear wheel/Zahnrad/42 /1 /D8
13 Gear wheel/Zahnrad/49 /1 /D8
14 Gear wheel/Zahnrad/28 /1 /D8
15 Gear wheel/Zahnrad/63 /1 /D8
16 Gear wheel/Zahnrad/70 /1 /D8
17 Gear wheel/Zahnrad/84 /1 /D8
18 Gear wheel/Zahnrad/98 /1 /D8
19 Gear wheel/Zahnrad/105 /1 /D8
SUPPORT/SUPPORT
20 Gear wheel/Zahnrad/17 /1 /D8
21 Gear wheel/Zahnrad/51 /1 /D8
22 Gear rack/Zahnstange /2 *) /L425
23 Gear wheel/Zahnrad/17 /2 *) /D8
24 Lock nut/Schloßmutter M3/ *) /L30
25 Starting shaft/Anlaufwelle *) /L425
26 Washer nut/Unterlegmutter M2/ *)
27 Spindle/Spindel *)
28 Washer nut/Unterlegmutter M2/ *)
29 Spindle/Spindel *)
TAILSTOCK/REITSTOCK
30 Washer nut/Unterlegmutter M2/ /L27 *)
31 Spindle/spindel /L50 *)
*) This parts are already mentioned in the list op parts.
*) Diese Teile sind bereits im Zubehörverzeichnis erwähnt.
Bijlage 5/Pièce annexe 5
TANDWIEL-, SPINDEL- EN VOLGMOERGEGEVENS
ROUE DENTÉE, BROCHE ET DONNÉES D'ÉCROUS D'ORDRE
Nr Onderdeel/tanden spoed/Mod. bijz./afm.
N° Pièce detachee/N° dents urgence/mod. part./dim.
HOOFDAS/ESSIEU PRRINCIPAL
1 tandwiel/roue dentée/ 51 /1 /D8
2 tandwiel/roue dentée/ 68 /1 /D8
3 tandwiel/roue dentée/ 25 /1 /D8
4 tandwiel/roue dentée/ 75 /1 /D8
5 tandwiel/roue dentée/ 76 /1 /D8
6 tandwiel/roue dentée/ 24 /1 /D8
7 tandwiel/roue dentée/ 24 /1 /D8
8 tandwiel/roue dentée/ 76 /1 /D8
9 tandwiel/roue dentée/ 56 /1 /D8
10 tandwiel/roue dentée/ 56 /1 /D8
WISSELWIELEN/ROUES DE RENVOI
11 tandwiel/roue dentée/ 30 /1 /D8
12 tandwiel/roue dentée/ 42 /1 /D8
13 tandwiel/roue dentée/ 49 /1 /D8
14 tandwiel/roue dentée/ 28 /1 /D8
15 tandwiel/roue dentée/ 63 /1 /D8
16 tandwiel/roue dentée/ 70 /1 /D8
17 tandwiel/roue dentée/ 84 /1 /D8
18 tandwiel/roue dentée/ 98 /1 /D8
19 tandwiel/roue dentée/ 105 /1 /D8
SUPPORT/SUPPORT
20 tandwiel/roue dentée/ 17 /1 /D8
21 tandwiel/roue dentée/ 51 /1 /D8
22 tandheugel/crémaillère /2 *) /L425
23 tandwiel/roue dentée/ 17 /2 *) /D8
24 slotmoer/écrou de verrouillage M3/ *) /L30
25 aanzetas/arbre d'entraînement *) /L425
26 volgmoer/écrou d’orde M2/ *)
27 spindel/broche *)
28 volgmoer/écrou d’ordre M2/ *)
29 spindel/broche *)
LOSSE KOP/CONTRE-POUPÉE
30 volgmoer/écrou d’ordre M2/ /L27 *)
31 spindel/broche /L50 *)
*) Deze onderdelen staan reeds vermeld in de onderdelentabel.
*) Ces pièces détachées sont déjà mentionnées dans le tableau
des pièces
5
