Appendix C
•
Falk
™
Drive One
®
Enclosed Gear Drives
(Page 16 of 27)
Type D Series
•
Sizes M1130 thru M1210
168-050
Rexnord Industries, LLC, 3001 W. Canal St., Milwaukee, WI 53208-4200
January 2019
Telephone: 414-342-3131 Fax: 414-937-4359
Supersedes 04-11
e-mail: info@rexnord.com web: www.rexnord.com
(PN 2124650)
Swing Base Installation
Introduction
The Drive One Swing Base is a welded steel structure
designed to support a motor and a right angle Type DB,
shaft-mounted drive. The swing base itself is a length of
square cross-sectional tubing with plates welded to it for
the motor and drive. The motor and drive plates are not
machined, and are supported by gussets for additional
strength. A torque arm attaches to the tube section near
the motor end of the swing base.
MOTOR PLATE
DRIVE PLATE
GUSSET
TUBE
SECTION
TORQUE ARM
CONNECTION LUG
WOODEN SUPPORTING
STRUCTURE
STEP
BLOCK
SPREADER BAR
VERTICAL
CABLE PULL
LOCATE SAFETY
CHAINS/SLING HERE
Supporting the Swing Base
The torque arm connection lug prevents the swing base
from lying flat on the ground; therefore, a supporting
structure is required for mounting the gear drive and motor
to the swing base. This structure is typically built from
wood and is unique to each swing base. All gussets have
a 19 mm (0.75 inch) diameter hole for securing the swing
base to the supporting structure.
Mounting Gear Drive to Swing Base
It is Rexnord’s standard procedure to mount the drive
to the swing base at the Factory. These instructions are
to be followed when field mounting of the drive to the
swing base is required. Use of broad, flat shims between
the gear drive and mounting plate are recommended to
prevent distortion of the housing when the drive is bolted
down. Jacking screw holes are provided in gear drive
housing to aid in fixing the shims. Begin at the low-speed
shaft end and level across the length and then the width of
the gear drive. Use a feeler gauge to ensure that all pads
are supported. Bolt down the drive to the torque specified
in Table 4, page 6.
Mounting Motor and Coupling Alignment
Shims are provided for motor mounting. Holes must be
drilled into the swing base motor plate for mounting of the
motor. Step blocks are also provided for some small frame
motors. Use a feeler gauge to ensure that all motor pads
are firmly seated. Motor mounting needs to be done in
conjunction with coupling alignment to control angular and
offset misalignment. Refer to the coupling manufacturer’s
manual for specific instructions. Bolt down the motor to the
torque specified in Table 4, page 6.
Coupling Guard
The coupling guard must be trimmed in order to fit the
height and shaft extension requirements. Refer to the
coupling guard installation manual for instructions on
trimming the guard. After the guard has been trimmed,
holes can be drilled in the coupling guard plate on the swing
base. The guard can then be bolted down to the plate.
Lifting the Swing Base Assembly
After the drive, motor, and coupling have been mounted
to the swing base, the completed assembly can be lifted
into position for installation on the driven shaft. The motor
eyebolt and the lifting holes on the drive housing can
be used as cable attachment points. The motor eyebolt
is strongest when the cable pull is vertical. To ensure
that cable pull on the motor eyebolt is vertical, use of a
spreader bar is recommended. See the sketch below. To
ensure safety, chains or a sling should be placed behind
the torque arm connection.
Mounting Swing Base Assembly to Driven
Equipment
Mount the gear drive to the driven shaft (see page
3). Secure the torque arm to the foundation per the
instructions in Appendix A.
