Operating Positions
Normal Speed Reducer positions are shown in the Mounting Position
Figures (refer to Page 2). For special applications, mounting position
may be inclined. However, if position varies more than 15°, it may
be necessary to make some adaptions to maintain a sufficient oil
level. Contact Factory for recommendations. Input rotation of Speed
Reducers can be either clockwise or counterclockwise.
For safe operation and to continue the unit warranty, when in-
stalling, reinstalling, or replacing a Factory installed fastener for
servicing purpose, or to accommodate the mounting of guards,
shields or other light load imposing devices, or for mounting the
unit, it becomes the responsibility of the purchaser or user to
properly determine the quality, grade of fastener, thread engage-
ment, load carrying capacity, tightening torque, and the means
of torque retention.
Couplings
Flexible couplings to input and output shafts are recommended
because they minimize bearing and gear wear caused by slight
misalignment. Follow coupling manufacturer’s recommendations
for installation and shielding.
Sheaves and Sprockets
When mounting sheaves or sprockets, the center of the load
should be located as close to the reducer as possible. Excessive
overhung loading could result in early failures of bearing or shaft.
Refer to the general catalog or contact your local distributor for
overhung load ratings. Follow manufacturer’s recommendations
for installation and shielding.
Exterior threaded or through holes on this drive are for mounting
the drive or drive accessories (couplings, sprockets, etc.). They are
not to be used for lifting the drive or any driver/driven equipment.
Inspect shafts and components for paint, burrs, or other imperfec-
tions before installing components. Do not use excessive force or
pounding to install components onto unit shafts, as this may cause
damage to shafts, bearings, or gears.
Shaft Mount Units
The Torque Arm Bracket (4A) can be attached to any of the four
available mounting surface locations of the unit.
Install and position Torque Arm (4) at 90° ± 30° to the plane (a line
drawn) between the center of the output hollow bore and the bolt
that attaches the Torque Arm (4) to the Torque Arm Bracket (4A)
of the unit. The Torque Arm should be positioned to be in tension,
NOT compression, based on output rotation of the gear reducer.
Hollow Output Protective Cover
When installing a hollow output protective cover on washdown
unit, apply a gasket sealant to the face of the cover to prevent
liquid and debris from seeping into the cover.
Excessive setscrew torque may cause damage to the output sleeves
in hollow bore units. Please refer to Table 3 for recommended
tightening torque.
Capscrew Size Recommended Torque (lb.-in.)
1/4 NC 87
5/16 NC 165
3/8 NC 290
Test run unit to verify operation. If the unit being tested is a
prototype, that unit must be of current production configuration.
Run-In Period
A new unit will not operate at maximum efficiency during the
run-in period. Increased current draw or heat rise may be seen
during this time.
Preventative Maintenance
Keep shafts and vent plug clean to prevent foreign particles from
entering seals or gear case. Inspect periodically for oil leaks.
Mounting bolts, coupling fasteners, and other power transmitting
devices should be routinely checked to ensure that all parts of the
unit are firmly anchored to provide proper operation (loose fas-
teners can cause alignment problems and excessive wear). Check
end play in shafts. Noticeable movement might indicate service
or parts replacement is necessary.
If the unit cannot be located in a clear and dry area with access to
an adequate cooling air supply, then precautions must be taken
to avoid ingestion of contaminants such as water, and to avoid a
reduction of cooling ability due to exterior contaminants.
Important Information
In the event of the resale of this E Series Speed Reducer (unit), in
whatever form, resellers/buyers will include the following language
in a conspicuous place and in a conspicuous manner in a written
agreement covering such sale:
The manufacturer makes no warranty or representations,
express or implied, by operation of law or otherwise, as to
the merchantability or fitness for a particular purpose of the
goods sold hereunder. Buyer acknowledges that it alone has
determined that the goods purchased hereunder will suitably
meet the requirements of their intended use. In no event will
manufacturer be liable for consequential, incidental, or other
damages.
Resellers/buyers agree to include this entire document,
including the warnings and cautions listed herein, in a
conspicuous place and in a conspicuous manner to instruct
users on the safe usage of the product.
4A
90°
±30°
4
TORQUE ARM FIGURE
Table 3 - Setscrew Tightening Torques
