FOUNDATION, GENERAL —
To facilitate oil drainage, elevate
the gear drive foundation above the surrounding floor level. If
desired, replace the drive oil
drain plug with a valve, but
provide a guard to protect
the valve from accidental
opening or breakage.
When an outboard bearing
is used, mount drive and
outboard bearing on a
continuous foundation or
bedplate and dowel both
in place.
FOUNDATION, STEEL —
When mounting gear drive on structural steel, it is recommended
that an engineered design be utilized for a pedestal, adapter base
or bed to provide sufficient rigidity, to prevent induced loads from
distorting the housing and
causing gear misalignment. In
the absence of an engineered
design, it is recommended that a
base plate, with thickness equal
to or greater than the thickness of
the drive feet, be securely bolted
to steel supports and extend
under the entire drive as
illustrated.
FOUNDATION, CONCRETE
—
If a concrete foundation is used, allow the concrete to set firmly
before bolting down the gear drive. For the best type of mounting,
grout structural steel mounting
pads into the mounting base,
as illustrated, rather than
grouting the drive directly into
the concrete.
Motors and other components
mounted on motor plates or motor brackets may become
misaligned during shipment. ALWAYS check alignment after
installation. Refer to
for coupling alignment instructions.
MOTOR BRACKETS —
The weight, location and starting torque
of the motor will cause some brackets to deflect downward and
to twist. This movement is within allowable engineered limits for
motor-drive selections from the Falk bulletin. If the customer
considers the movement excessive, jackscrew supports for the
bracket extension are available from Falk. To compensate for
deflection caused by heavy motors AND to get CORRECT
COUPLING ALIGNMENT, use more shims under the rear motor
feet than the front feet.
GEAR DRIVE ALIGNMENT —
Align drive with driven equipment
by placing broad, flat shims under all mounting pads. Start at the low
speed shaft end and level across the length and then the width of the
drive. Check with a feeler gauge to make certain that all pads are
supported to prevent distortion of housing when drive is bolted down.
After drive is aligned with driven equipment and bolted down, align
prime mover to drive input shaft. Refer to
for coupling
alignment.
If equipment is received from Falk mounted on a bedplate, the
components were accurately aligned at Falk with the bedplate
mounted on a large, flat assembly plate. Shim under the
bedplate foot pads until the gear drive is level and all feet are in
the same plane.
Check high speed shaft coupling alignment. If the coupling is
misaligned, the bedplate is shimmed incorrectly. Re-shim
bedplate and recheck high speed coupling alignment. If
necessary, realign motor.
Shaft Connections
WARNING
:
Provide suitable guards in accordance with
OSHA standards.
COUPLING CONNECTIONS —
The performance and life of
any coupling depends largely upon how well the coupling is
installed and serviced. Refer to the coupling manufacturer’s
manual for specific instructions.
CORRECT METHOD
Heat interference fitted
coupling hubs, pinions,
sprockets or pulleys to a
maximum of 275
°
F (135
°
C)
and slide onto gear
drive shaft.
INCORRECT METHOD
DO NOT drive coupling
hub, pinion, sprocket or
pulley onto the shaft. An
endwise blow on the
shaft/coupling may damage
gears and bearings.
FALK COUPLINGS —
(Except fluid type) Detailed installation
manuals are available from the Factory, your local Falk
Representative or Distributor—just provide size and type
designations stamped on the coupling. For lubricant requirements
and a list of typical lubricants meeting Falk specifications, refer to
appropriate coupling service manual.
Flanged Type Rigid Couplings
are typically used on drives with
vertical output shafts. The low speed shaft extension ends of the
solid vertical shaft drives are drilled and tapped to accommodate
coupling keeper plates. Tightening torques for fasteners, including
keeper plate fasteners are listed in
The Falk Corporation, a Sundstrand Company, P.O. Box 492, Zip 53201-0492
148-050
3001 W. Canal St., Zip 53208-4200, Milwaukee, WI USA Telephone: 414-342-3131
April 1999
Fax: 414-937-4359 e-mail: [email protected] web: www.falkcorp.com
Supersedes 4-89
Installation & Maintenance Instructions
•
Enclosed Gear Drives
(Page 2 of 8) Sizes 1080–1195 & 2050–2235
•
Types GHB, Y, YB & YBX
CONTINUOUS PLATE
LEVELING
REFERENCE
SURFACE
SHIMS
SHIMS
— CAUTION —
DO NOT HAMMER
