Rohm RN-1004 Notice D'utilisation page 2

Operating Instructions
Nominal value for axially admissible total load
on the 3 supporting pistons: 2000 daN
adjustable cup spring set
setscrew for
adjustm ent
of centre
MT 3-6
1. Changing the driving disc
1.1 Detach driving disc using a srcew driver or other suitable tool.
1.2 Select largest size of driving disc suiting the turning diameter.
(Also take into account the direction of rotation of the machine
spindle).
Grease O-ring and mount disc. If the fit is too loose, exchange
O-ring.
2. Changing and adjusting
2.1 Unscrew retaining screw 5 with lockwasher
centre 2.
Types 680-60 with adaptor plate and 680-65 for mounting in a
lathe chuck have a spring-loaded
centre under the grease
must be turned to the left or right and then pulled out.
2.2 Adjust cup spring assembly 4 so that after the driving disc has
been mounted the centre
piece is clamped. The cup spring assembly can be adjusted
either from the shank end using an Allen key or through the
bore of the centre using a screw driver. In the latter case, the
driver need not be removed from the machine
2.3 For heavy workpieces or high metal removal rates the centring
force can be increased
deeper into the shank. (Make sure that the max. stroke is ob-
served).
3. Removing the support pistons
3.1 Detach driving disc using a screw driver or other suitable tool.
3.2 Unscrew one of the two vent screws 7 with sealing ring 8.
3.3 Pull out support pistons 3 and allow pressure fluid to drain off.
Check O-rings and support
Make sure that the support
away from the pressure.
Ident. No.
1 — Body
2 Centre
3 — Support piston
with seals 088150
O-ring
006230
Support ring 072224
4 Cup spring assembly
088151
(MT 3 088141)
2
for CoA Face Drivers
56.5
(54 with MT 3)
the centre
6 and remove
thrust piece which keeps the
nipple. With these types, the centre
will move 2-6 mm when
spindle.
by screwing the cup spring assembly
rings and replace if necessary.
rings are fitted on the side facing
Ident.
5 — Retaining screw
6 — Lockwasher
7 — Vent screw
8 Sealing ring
9 — Grease nipple
1 kg F 25 liquide grease
with detachable
45
26
nun.
0,015 A
Stroke 15
(10 with MT 3)
Driving disc
2
4. Installing the support
4.1 ScreW in vent screw 7 with sealing ring 8.
4.2 Completely
grease. Insert support piston 3 and push it down as far as it will
go. Install the other support
4.3 Fit driving disc and apply axial load.
4.4 Loosen vent screw
the clearance
2 mm. (Use a shim). Tighten vent screw.
4.5 Make sure that the support
5. Cup spring assembly
the work-
1. Stroke max. 15 mm (10 mm)
2. Initial force 25 daN (20 däN)
3. Max. force 100 daN (70 daN)
The values in parentheses
apply to the MT 3 basic body
6. Maximum weight
6.1 For the MT 3 basic body and types with a stepped
centre the maximum workpiece weight is approx. 50 kg.
6.2 For the MT 4 to 6 basic bodies and the types 680-60 with adap-
tor plate and 680-85 for mounting in a lathe chuck the maximum
workpiece weight is approx. 100 kg.
7. Maintenance
7.1 Resharpen cutting edges of driving disc in time or exchange
driving disc. Replace worn carbide
surface for the No. 88209
grease to avoid displacement
7.2 The centre
times.
7.3 Relubricate
4
No.
088152
007786
085012
008125
027380
036397
driving
CoA Face Driver
Spring-loaded centre, 8-80 mm clamping dia-
meter, 9-160 mm turning range, driving discs
with interchangeable carbide driving plates in
special quality available
a clamping diameter of 20 mm or greater.
Compensation for up to 50 axial slip of driving
disc.
The clamping ratio (turning
ping diameter) should
If the tailstock is not power-operated,
to use the AC 500 live
pistons
fill one piston bore with bubble-free
pistons in the sam manner.
7 and allow pressure
between the driving disc and the basic body is
pistons can move
20 30 40
of workpiece
driving
carbide plates
during clamping.
is through-hardened and can be reground
centre at regular intervals, using the grease nipple.
8
discs
for face drivers with
diameter: clam-
not exceed 2:1.
be sure
centre as tail centre.
F 25 liquid
fluid to drain off until
with ease.
77.5
68 Cup springs
15x8.2xo,8
104
min 89
50 60 '0 80
Force
daN
4 mm dia.
plates. The seating
should be free of
several
3 2
6
5