ARMY TM 9-6115-670-14&P
6-91
6.37. ROTOR.
This task covers: Replace
INITIAL SETUP
Tools
Shop Equipment, Electrical Repair,
Semitrailer Mounted
(Item 3, Appendix B)
Equipment Conditions
Generator assembly removed from APU (para
5.24.).
Materials/Parts
Rotor
REPLACE
a. Remove four bolts and flat washers (9, Figure 6-34) securing louvered cover and removed
cover (7).
b. Remove six bolts and washers (5), pressure plate (4), and coupling hub (3) from rotor (1).
c. Remove four bolts and lock washers (6) and remove generator fan (2).
d. Secure lift sling to rotor (1) at drive end.
e. At generator non drive end, tap on the rotor to loosen generator bearing (7) and rotor (1) free
from bearing housing (10).
f. Continue to push rotor (1) through stator bore, gradually moving sling along rotor (1) as it is
removed.
g. Install rotor into stator bore and gradually move sling along rotor (1) as it is installed.
h. At generator non drive end, install generator bearing (7) and rotor (1) into bear housing (10).
i. Remove lift sling.
j. Install generator fan (2) and secure with four bolts and lock washers (6).
k. Install pressure plate (4) and coupling hub (3) and secure with six bolts and washers (5).
Torque to 55 ft-lbs (74.8 Nm).
l. Install louvered cover (7) and secure with four bolts and flat washers (9).
CAUTION
Ensure lifting sling fully supports rotor at all times.
