The products described in this instruction manual are
manufactured by Reliance Electric Industrial Company.
1. On sizes TXT3A, TXT4A, and TXT5B use lifting lug to
2. Determine the running position of the reducer. (See
Fig. 1) Note that the reducer is supplied with either 4
or 7 plugs; 4 around the sides for horizontal
installations. These plugs must be arranged relative to
the running positions as follows:
Horizontal Installations-lnstall the magnetic drain
plug in the hole closest to the bottom of the reducer.
Throw away the tape that covers the filler/ventilation
plug in shipment and install plug in topmost hole. Of
the 3 remaining plugs on the sides of the reducer. the
lowest one is the minimum oil level plug.
Vertical Installations-lnstall the filler/ventilation plug
in the hole provided in the top face of the reducer
housing. Use the hole in the bottom face for the
magnetic drain plug. Of the 5 remaining holes on the
sides of the reducer, use a plug in the upper housing
half for the minimum oil level plug.
Fig. 1 - Mounting Positions
The running position of the reducer in a horizontal
application is not limited to the four positions shown in
Figure 1. However, if running position is over 20:
either way from sketches, the oil level plug cannot be
safely used to check the oil level, unless during the
checking the torque arm is disconnected and the
reducer is swung to within 20° of the positions shown
In Figure 1. Because of the many possible positions of
the reducer, it may be necessary or desirable to make
special adaptions using the lubrication fitting holes
furnished along with other standard pipe fittings, stand
pipes and oil level gages as required.
unexpectedly started, turn off and lock
proceeding. Failure to observe these
precautions could result in bodily
3. Mount reducer on driven shaft as follows: For
Straight Bore: Mount reducer on driven shaft as close
to bearing as practical. If bushings are used, assemble
bushings in reducer
first. A set of bushings
and one plain bushing.
Extra length setscrews
are furnished with the
reducer. Driven shaft
should extend through
full length of speed
reducer. Tighten both
For Taper Bushed:
instruction sheet No.
499629 packed with
4. Install sheave on input
(See Fig. 2)
5. Install motor and V-
belt drive so belt pull
will approximately be
at right angles to the
center line between
driven and input shaft.
(See Fig. 3) This will
permit tightening the
V-belt drive with the
6. Install torque arm and adapter plates using the long
reducer bolts. The bolts may be shifted to any of the
holes on the input end of the reducer.
Install torque arm fulcrum on a rigid support so that
the torque arm will be approximately at right angles to
the center line through the driven shaft and the torque
arm anchor screw. (See Fig. 4) Make sure that there
is sufficient take-up in the turnbuckle for belt tension
adjustment when using V-belt drive.
Fill gear reducer with recommended lubricant.
Unit is shipped without oil. Add proper
before operating. Failure to observe
damage to, or destruction of, the
(page 3 - 1279)