12
Hyponic®
Operating and Maintenance Manual
Hyponic® Operating and Maintenance Manual
13
www.SumitomoDrive.com
4
Set the (untightened) shrink disc on the reducer shaft.
5
After confirming the correct position of the hub and shrink discs, hand tighten
three or four equally spaced locking screws and ensure the discs are parallel.
Hand-tighten remaining locking screws.
6
Using a torque wrench, tighten the screws according to the
initial torque
listed
in
Table 3.
Tighten in either a clockwise or counter-clock wise sequence, using
¼ turns, until you can no longer complete a ¼ turn for any of the screws. This
procedure keeps the discs parallel.
7
Continue to tighten the screws for two more passes. This compensates for system
induced relaxing of the locking screws.
7
6
5
4
3
2
1
8
Set the torque wrench to the
final torque
and tighten all locking screws. At this point, no screw should turn;
otherwise, set the torque wrench to the
initial torque
and repeat steps 6 and 7 above. It is
not
necessary to re-
torque after equipment has been in operation.
9
For units with a safety cover, reinstall the guard over the
shrink disc.
Do not operate unit until the torque arm has been attached.
Refer to
the
Torque Arm Installation section
in this guide for instructions.
Screw Size
M5
M6
M8
M10
M12
M16
Initial Torque
in-lb
(Nm)
45
(5.1)
109
(12.3)
275
(31)
557
(63)
929
(105)
2327
(263)
Final Torque
in-lb
(Nm)
43
(4.9)
105
(11.8)
266
(30)
531
(60)
885
(100)
2221
(251)
Socket Size mm
8
10
13
17
19
24
Table 3. Shrink Disc Size and Tightening Torque
Mount the torque arm on the driven machine side of the drive casing. Use hexagon socket head bolts
for mounting. (See
Table 4
for bolt sizes.)
The torque arm should be mounted to ensure that the contact surface between the drive and shaft are free from
excessive forces
(Figure 10)
.
Do not attach the torque arm using anti-rotation bolts
. For applications that require
frequent starts and stops or frequent reversing, insert a rubber bushing (or spacer) between the torque arm and
securing bolt in order to dampen impact load as shown in
(Figure 11)
.
Model
Bolt Size
1120,1230
M8
1220, 1330, 1340
M10
1320, 1430, 1440
M12
1420, 1530, 1531
M16
1520, 1521, 1522, 1630, 1631,
1632, 1633, 1640
M20
Table 4. Torque Arm Bolt Sizes.
No clearance between torque
arm and machine
Leave some
clearance
Bolt or pin
Flat washer
Adjust clearance according to
movement of machine
Correct
Excessive force on the torque
arm bolt, machine and unit
may cause damage
Incorrect
Spacer
Torque Arm
Fig. 10
Fig. 11
Removal Instructions
Standard Face Mount Torque Arm
Following either a clockwise or counterclockwise sequence, loosen all locking screws using approximately ½ turns, until
you can remove the shrink disc from the hub. The shrink disc, hub, and shaft will return to their original clearance fits.
Note:
Locking screws do not have to be removed completely from the shrink disc.
Torque Arm Installation
