TROUBLESHOOTING & REPAIR
F-96 F-96
RANGER 305D
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STATOR/ROTOR REMOVALAND REPLACEMENT (continued)
Replacing the Stator
1. Examine the stator frame assembly. Be sure
the wiring,coils, mounting flange and bear-
ing seat are clean and in good condition.
Check the engine mounting flange to be sure
it is clean and free of nicks, burrs, or anything
that may interfere with the seating or align-
ment of the stator frame assembly.
NOTE: If the stator had been removed due to a
bearing or tolerance ring failure, the bearing seat
in the stator frame assembly must be checked for
a possible oversize condition before reassembly.
2. Apply a thin film of grease to the tolerance
ring and insert it into the bearing seat cavity
of the stator frame assembly.
3. Use the hoist, along with lifting straps or
chains to lift the stator frame assembly.
Carefullyalign the stator to the rotor and slide
the stator frame over the rotor. Be very care-
ful not to damage either the stator or rotor.
4. Align the rotor shaft bearing to the tolerance
ring; also align the screw holes in the mount-
ing flange. Insert the 8 screws with lock
washers through he stator flange and into the
enginemounting flange. Itmaybe necessary
to tap the stator with a mallet to partially seat
the bearing in orderto get the screws started.
5. Begin tightening the screws evenly to draw
the stator onto the engine mounting flange.
(Bolts, stator frame to engine: 20 to 22 ft-lbs)
Be very careful that the flange and bearing
are seated properly and do not bind. Tighten
the stator flange screws to 20 to 22 Ft-Lbs.
6. Check the air gap between the stator and the
rotor. A .017” thick, 1/2” wide feeler gauge
should pass between the stator and rotor.
7. Install the flat washerand then the blower fan
on the rotor shaft. The fan should be hand
tightened only.
8. Attach the hoist to the lift bale to support the
engine and stator assembly. Remove the
support blocks, remove the screws from the
engine support brackets and carefully rotate
the engine and generator back to its original
position.
9. Make sure all of the wiring is routed correct-
ly, and replace the fasteners securing the
engine and generator.
10. Reverse the above procedures to reassem-
ble the machine.
11. Reconnect all wiring and replace any cable
ties that had been removed.
12. Refill the engine cooling system with the
coolant that was drained earlier, or with a
50/50 mix of permanent type antifreeze-
coolant. See the engine operatorʼs manual
for more detailed information.