Franklin Electric I Series Installation, Operation And Maintenance Manual page 10

Mounting Instructions For Flywheel Couplings
1. The outer taper of the taper bushing and the bore with
the inner taper of the element hub shall show bright
metal and must be free of grease prior to mounting.
Preservatives must be removed completely.
2. Insert the taper bushing into the element hub and line up all
connecting bores. Make sure that half-threaded bores coincide
with half-plain bores (FIGURE 6).
3. Screw in lightly greased or oiled assembly screws. Do not
tighten the screws yet (FIGURE 7).
4. Slide the element hub with inserted taper bushing onto the
cleaned shaft with keyway and put it into the mounting
position Lx (FIGURE 8).
5. Tighten the screws uniformly up to the tightening torque MA2
specified in TABLE 2 using a torque wrench.
6. The screws can be retightened by tapping against the taper
bushing with a hammer using an intermediate plate.
Repeat, if necessary.
FIGURE 6
Tightening Torques for Mounting the Taper Bushing
TABLE 2
Coupling Size
Taper Bushing No.
* UNC Screw Size
Tightening Torque
MA2
Width across flats SW
* No. 2517 Set Screw
No. 3535 Cap Screw
How to Remove the Element Hub with Taper Bushing
1. Loosen and remove all screws. Depending on the taper
bushing size, screw either 1 or 2 greased screws into the half
pulling-off thread(s) of the taper bushing (FIGURE 9).
2. Tighten the screws uniformly until the taper bushing is loose
in the element hub (FIGURE 10).
3. As soon as the taper bushing is loose, the element hub can be
pulled off the shaft together with the taper bushing.
10
AC-T2,6 AC-T3
2517
1/2 x 13
49
Nm
434
lb-in
1/4
FIGURE 8
FIGURE 7
AC-T5
3535
1/2 x 13
115
1020
1/4
FIGURE 9
FIGURE 10