RBC DODGE MTA2 Series Instruction Manual

Motorized Torque-Arm II Speed Reducers
These instructions must be read thoroughly before installation or operation. This instruction manual was accurate at the time of
printing. Please see dodgeindustrial.com for updated instruction manuals.
WARNING: To ensure the drive is not unexpectedly started, turn off and
lock-out or tag-out power source before proceeding. Failure to observe
these precautions could result in bodily injury.
NOTE: This reducer is compatible with Dodge
installed in the adapter plug. The plug and sensor can be moved to
different locations as required by mounting position.
WARNING: Because of the possible danger to person(s) or property
from accidents which may result from the improper use of products,
it is important that correct procedures be followed. Products must be
used in accordance with the engineering information specified in the
catalog. Proper installation, maintenance and operation procedures
must be observed. The instructions in the instruction manuals must
be followed. Inspections should be made as necessary to assure
safe operation under prevailing conditions. Proper guards and other
suitable safety devices or procedures as may be desirable or as may
be specified in safety codes should be provided, and are neither
provided by Dodge nor are the responsibility of Dodge. This unit and
its associated equipment must be installed, adjusted and maintained
by qualified personnel who are familiar with the construction and
operation of all equipment in the system and the potential hazards
involved. When risk to persons or property may be involved, a holding
device must be an integral part of the driven equipment beyond the
speed reducer output shaft.
MTA2-MTA12 C-Faced Coupled
Instruction Manual
sensors, that can be
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WARNING: All products over 55 lbs (25 kg) are noted on the shipping
package. Proper lifting practices are required for these products.
INSTALLATION OF OPEN MOTOR ADAPTER
AND WRAP COUPLING
(NEMA 180TC-405TC)
1. Use lifting bracket(s) to lift reducer onto worktable and secure
reducer to prevent movement.
2. Inspect the motor adapter and reducer to ensure there are no
burrs or debris present on the contact surfaces of each part.
3. Install the gasket between the reducer and motor adapter. To
help prevent pinching the gasket, place and align the gasket
onto the motor adapter face. A small amount of grease or
other suitable product can be placed on the gasket in two or
four locations to temporarily hold the gasket in place.
4. Lift the motor adapter using lift-assist equipment and position
the motor adapter onto the reducer and secure using the
supplied hardware.
NOTE: The NEMA 180TC–280TC motor adapters attach
to the reducer using four bolts and four lock washers, and
the NEMA 320TC–405TC motor adapters attach to the
reducer using eight bolts and eight lock washers.
5. Torque motor adapter to reducer bolts per Table 1a.
Table 1a – Motor Adapter to Reducer Tightening Torque – NEMA
Motor Adapter Fastener Size
All NEMA Sizes
Table 1b – Motor Adapter to Reducer Tightening Torque – IEC
Motor Adapter Fastener Size
90—225S
250—280S
6. Inspect coupling components and remove any protective
coatings/lubricants from bored, mating surfaces, and
fasteners.
7. Install the reducer hub with the key so that the main body of
the hub is flush with the end of the reducer shaft and tighten
the two set screws per Table 2.
1
Bolt Tightening Torque
1/2—13 75 lb-ft (102 Nm)
Bolt Tightening Torque
1/2—13 75 lb-ft (102 Nm)
5/8—11 115 lb-ft (156 Nm)