CBE 520, Safety, Installation, Operation, Maintenance

Page: 36 / 61

36
To install the vent plug, follow these steps.

Determine the position of reducer after equipment has been installed.

Remove solid pipe plugs and install vent plug and grease fittings in position indicated by
drawings.

On the 5A model only, remove small pipe plugs and add two grease fittings in position
"A" and "E"/"F".

If reducer is mounted in position "C" or "D", remove oil level plug and insure that oil is up
to this hole. If not, add oil until it comes up to this level (approximately 1/4 qt in the 4A
and 1/2 at in the 5A models). To add oil, remove pipe plug or vent at the upper most
part.

Position "F not recommended-premature leakage may occur around input shaft seal.
Use this only if all other options do not work.
***************
If the speed reducer is removed from the conveyor for maintenance purposes, the
following precautions should be taken upon reinstalling the reducer:

When the reducer is used in conjunction with sheaves and sprockets, care should be
taken to insure that shafts are parallel and sheaves and/or sprockets are in alignment.
This will prevent damage.

Sheaves and sprockets should be properly keyed and tightened to the shafts to prevent
wear to the shaft and bores. Extreme belt or chain tension should be avoided.

When assembling sheaves or sprockets on reducer shafts, they should be installed as
close to the reducer housing as possible. Sheaves or sprockets should not be driven
onto the shaft. This could result in damage to the bearings and/or reducer housing.
Models 4AC and 5 AC speed reducers are supplied with a "C-Face" adapter and are
coupled directly to the motor by coupling gears and sleeve. To replace the coupling,
refer to Figure 9A and follow the instructions below.

Install 3/4" bore coupling gear to reducer s haft using as 3/16" x 1" long shaft key.
Tighten set screws through hole in "C-Face" adapter.

Install coupling gear to motor. Locate 2-1/32" from face of motor using 3/16" x 1" long
shaft key. Tighten set screws.

Place sleeve onto coupling gear on motor and ease motor into place. Look through hole
in C-Face adapter to see if that sleeve seats onto coupling gear of reducer.