TM11-6125-256-34
Section VI.
MAINTENANCE OF MOTOR-GENERATOR
(6) Remove screws (10) and washers (11) Use a
4-19. Disassembly of Motor-Generator
brush hook to lift dc brush springs and remove contact dc
a Main Assembly (fig FO-3)
electrical brushes (9)
(7) Remove screws (13) lock washers (14) and
(1) Unlock Dzus fasteners (19) and remove control
washers (15) Use a brush hook to lift ac brush springs
box cover subassembly (20)
and remove ac brush assemblies (12) Cut tie and
disconnect lead (number 2) from positive (+) slip ring
brush box
regulator assembly (21 or 25F) as described in
paragraph 3-11a or 3-14a as applicable.
(8) Remove screws (2) lock washers (3) and dc fan
(3) Remove dc and ac brush electrical covers (4 and
cover (1) Repeat procedure for ac fan cover (1)
5)
(9) Remove nut (57) and flat washer (58) from the
(4) If necessary tag and disconnect leads of dc end
rotor shaft
bell assembly (66), ac end bell assembly (67) and
electrical rotating equipment housing assembly (79) from
control box assembly (50 or 50A) as applicable.
(10) Remove screws (68) lock washers (69) and
(5) To remove control box assembly (50) from
washers (70) from ac end bell assembly (67) Remove ac
electrical rotating equipment housing assembly (79)
end bell assembly (67) with rotor assembly (78) ball
remove screws (51 and 53) and lock washers (52) and
bearings (65 and 73), and ac fan (56) attached from
separate the control box assembly from the electrical
electrical rotating equipment housing (79) Remove ac
rotating equipment housing
fan (56) from shaft
