Rotator Maintenance Section 6 Page 3
MSD SABER SERIES SHEARS
THE ROTATOR
The rotator gives the shear 360 degrees of continuous rotation in both directions for easy, accurate process-
ing at all angles. The hydraulic rotation circuit consists of the hydraulic motor driving a turntable bearing, either
directly or through a planetary gearbox. It is necessary to regularly maintain this system to ensure long life and
good performance. The maintenance requirements of the rotator are outlined in the following pages.
BOLT TORQUE
The bolts connecting the turntable bearing are a critical structural area. The bolts must be inspected after the
initial eight hours of operation and weekly thereafter. Damaged fasteners must always be replaced with the
same size and grade of fastener. If bolts are found to be loose after operation, they should never be retorqued
more than one time before they are replaced. Please contact the Stanley LaBounty Service Department for
specifi c information about replacement.
TORQUE VALUES FOR
TURNTABLE BOLTS
SIZE CLASS FT-LBS N-M
M20 10.9 435 590
M20 12.9 523 710
M24 10.9 752 1020
M24 12.9 900 1220
M30 10.9 1511 2049
M30 12.9 1800 2450
1.00" L-9 900 1220
1.50" ZN-L-9 2600 3520
SIZE CLASS FT-LBS N-M
M10 12.9 49 67
M12 10.9 71 96
M16 10.9 173 235
M20 10.9 335 454
.38" Gr.8 63 85
.50" Gr.8 106 209
.75" Gr.8 380 515
TORQUE VALUES FOR
ROTATION ASSEMBLY BOLTS
Always replace bolts and nuts with the same
size and class fastener. Inferior fasteners can fail
and cause injury or death and damage to the
equipment.
• Use of the rotation feature for any other purpose
may damage the rotation components and may void
the shear warranty.
• It may be necessary to rotate the shear to access
all the bolts connecting the shear, turntable bearing
and rotating head.
• Be sure to use the proper torque value for the size,
class, and type of bolt.
NOTICE
