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2.
The long bushing is designed to be installed from the side
of the reducer opposite the driven equipment as shown
in Figure 6. The long bushing when properly installed is
designed to capture the end of the customer shaft that does
not extend through the reducer. Normally the reducer would
be mounted such that the input shaft extends from the
side of the reducer opposite the driven equipment however
the reducer design allows installation of the reducer to be
mounted in the opposite direction.
3.
Install the tapered bushing wedge into the hollow bore of
the reducer from the same side as the long bushing will be
installed. When installing the tapered bushing wedge into
the reducer hub, install the flange end first so that the thin
taper is pointing outwards towards the long bushing as
shown in Figure 7. The wedge is properly installed when it
snaps into place in the reducer hub.
Figure 7 – Short Shaft Bushing and Output Hub
4.
Align the tapered bushing wedge keyway with the reducer
hub keyway. The keyway in the wedge is slightly wider
than the keyway in the reducer hub allowing for easier
installation.
5.
Install one bushing backup plate on the end of the hub and
secure with the supplied retaining ring. Repeat procedure
for other side.
6.
Install the short bushing; flange first, on the driven shaft
and position per dimension "A", as shown in Table 3. This
will allow the bolts to be threaded into the bushing for
future bushing and reducer removal.
7.
Insert the output key in the shaft and bushing. For easy of
installation, rotate the driven shaft so that the shaft keyseat
is at the top position.
PLEASE NOTE – In most cases the keys that are
supplied with the bushing kit are NOT square keys, and
the orientation of the key is important. Install the key
so that it fits snugly in the width of the keyseat. The
keys are marked with a part number and some keys
are also etched with "THIS SIDE UP" – these markings
should be showing on the top of the key when it is
installed in the shaft keyseat, see Figure 8 below.
PART NUMBER AND MARKINGS
Figure 8- Key Marking
Assembly
8.
Mount the reducer on the driven shaft and align the
shaft key with the reducer hub keyway. Maintain the
recommended minimum distance "A" from the shaft
bearing.
9.
Insert the screws, with washers installed, in the unthreaded
holes in the bushing flange and align with the threaded
holes in the bushing backup plate. If necessary, rotate the
bushing backup plate to align with the bushing screws.
Tighten the screws lightly. If the reducer must be positioned
closer than dimension "A", place the screws with washers
installed, in the unthreaded holes in the bushing before
positioning reducer making sure to maintain at least 1/8"
between the screw heads and the bearing.
10. Place the long bushing in position on the shaft and align
the bushing keyway with the shaft key. Use care to locate
the long bushing with the tapered bushing wedge installed
earlier. Align the unthreaded holes in the bushing with the
threaded holes in the bushing backup plate. If necessary,
rotate the bushing backup plate to align with the bushing
holes. Insert bushing screws, with washers installed in the
unthreaded holes in the bushing. Tighten screws lightly.
11. Alternately and evenly tighten the screws in the bushing
nearest the equipment to the recommended torque given in
Table 1. Repeat procedure on outer bushing.
Bushing Removal for Standard Taper or
Short Shaft Bushings:
1.
Remove bushing screws.
2.
Place the screws in the threaded holes provided in the
bushing flanges. Tighten the screws alternately and
evenly until the bushings are free on the shaft. For ease of
tightening screws make sure screw threads and threaded
holes in the bushing flanges are clean. If the reducer
was positioned closer than the recommended minimum
distance "A" as shown in Table 2, loosen the inboard
bushing screws until they are clear of the bushing flange
by 1/8". Locate two (2) wedges at 180 degrees between
the bushing flange and the bushing backup plate. Drive the
wedges alternately and evenly until the bushing is free on
the shaft.
3.
Remove the outside bushing, the reducer, and then the
inboard bushing.
LUBRICATION
NOTE: Because reducer is shipped without oil, it is
necessary to add the proper amount of oil before
operating reducer. Use a high-grade petroleum base rust
and oxidation inhibited (R&O) gear oil (Tables 3 and 4).
Follow instructions on reducer warning tags, and in the
installation manual.
For average industrial operating conditions, the lubricant should
be changed every 2500 hours of operation or every 6 months,
whichever occurs first. Drain reducer and flush with kerosene,
clean magnetic drain plug and refill to proper level with new
lubricant.
CAUTION: Too much oil will cause overheating and too
little will result in gear failure. Check oil level regularly.
Failure to observe this precaution could result in bodily
injury.
Under extreme operating conditions, such as rapid rise and
fall of temperature, dust, dirt, chemical particles, chemical
fumes, or oil sump temperatures above 200°F, the oil should
be changed every 1 to 3 months, depending on severity of
conditions.
4
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