ARMY TM 9-6115-641-24
AIR FORCE TO 35C2-3-456-12
4-114. Assembly/installation. - Continued.
o.
Install generator mounting hardware, paragraph 3–6-2, step i
p.
Remove wooden wedges between engine and skid frame.
q.
Install rear housing section, paragraph 2–20–4.
4-12.
GENERATOR ASSEMBLY (MEP-812A).
4-12-1. Removal.
a.
Shut down generator set.
b. Remove rear housing section, paragraph 2–20–1
c.
Remove generator mounting hardware, paragraph 3-6-1, step z.
d. Insert wooden wedges between rear end of engine and skid base to support engine when generator is removed.
e.
Remove bolt (1, Figure 4-25), washer (2), Iockwasher (3), and screen (4) from generator frame/stator assem-
bly (5).
CAUTIO N
Rated capacity of lifting device must be at least 1000 Ibs (454 kg).
f.
Attach overhead lifting device to generator assembly lifting point. Take up slack to support weight of generator.
NOTE
The following step requires turning the generator by hand. Use engine fan to turn engine
and generator.
g. Remove bolts (6) and washers (7) securing fan (8) and drive plate (9) to flywheel (10).
h. Remove bolts(11) and gently pry (screwdriver slots provided) generator assembly away from engine assembly.
i.
Move generator assembly to maintenance work area. Support assembly to prevent damage.
j.
Remove bolts (12) and flywheel (10) from engine crankshaft.
4-12-2. Disassemble.
CAUTION
Rated capacity of lifting device must be at least 1000 Ibs (454 kg).
a. Using overhead lifting device, carefully lift and position generator assembly on work table with end bell (31,
Figure 4-25) resting on table.
b.
Remove bolts (14), Iockwashers (1 5), retention disk (16), spacer (1 7), drive plate (9), and fan (8) from rotor
assembly (18).
CAUTION
Use care to avoid contact between frame/stator assembly (5) and rotor assembly
(18).
c.
Attach overhead lifting device to rotor assembly (18) and carefully lift rotor assembly (18) out of frame/stator
assembly (5).
d. Using gear puller, remove bearing (19) from rotor assembly (18).
e. Tag and disconnect Fl+ and F2- leads from rotating rectifiers by removing nuts (20) and washers (21).
f.
Using gear puller, carefully remove exciter rotor (22) from rotor assembly (18).
g. Using overhead lifting device, turn generator assembly over so that flywheel end is resting on table.
h. Remove bolts (23), Iockwashers (24), retention plate (25), bolts (26), Iockwashers (27), and cover (27) from
end bell (31).
4-29
