Kohler 40COZ/33CFOZ Service Manual page 106

12. Suspend the rotor over the generator set
assembly. Lower the rotor field into the stator. Be
extremely careful while lowering the rotor to avoid
damaging the exciter armature, field magnets,
stator windings, or rotor laminations. See
Figure 8-16. Carefully align the rotor bearing to the
end bracket. Check for an outer race measurement
of 0.6 mm (0.25 in.) from the bracket to the bearing.
Make sure the photo transistor board and actuator
cup have clearance below the end bracket.
13. Place the fan over the rotor flange and torque the
bolts to 29 Nm (260 in. lbs.).
14. Attach the drive disc(s) to the end of the rotor shaft.
Torque the drive disc mounting bolts to 68 Nm
(50 ft. lbs.).
15. Attach the hoist to the adapter eye and place the
generator set assembly in a horizontal position.
Take care not to damage the rotor or stator.
Position the generator set so that the hoisting eyes
are to the top.
R
16. Apply Loctite No. 271 red to the stud threads, if so
equipped, and thread the studs completely into the
flywheel as shown in Figure 8-17. Apply Loctite
No. 242 blue to the stud threads on the nut side.
Figure 8-16 Installing Rotor
92
Section 8 Disassembly/Reassembly
1
1. Flywheel studs
Figure 8-17 Flywheel Studs
17. Place the hoist hooks into the end bracket and the
adapter eye. Raise the generator set assembly and
align the studs with the drive discs by turning the
flywheel. Move the generator set as necessary to
work the drive discs over the studs. When the drive
discs are about 25 mm (1 in.) over the studs, install
the spacers, if equipped. See Figure 8-18.
R
Note: Some models mount the drive discs to the
1
1. Drive discs
2. Studs
3. Spacers
Figure 8-18 Installing Spacers
3-090
R8348-19
flywheel using bolts. Some applications use
hardened washers.
2 3
3-098
R8371-9
3-097
R8371-14
TP-5737 5/01