GENERATOR SERVICE
This section describes generator disassembly/as-
sembly procedures. Refer to Figure
8-1
to locate
and identify the various generator components,
and the diagrams in Section
11
for wiring intercon-
nect information.
Generator
Disassembly
Procedure
1. After allowing the engine to cool, drain the en-
gine oil while the genset is mounted in the vehi-
cle.
2. Remove the set from the vehicle and place it
on a sturdy work bench. Refer to Section 5
of
this manual for set removal procedures.
3. Remove the top cover from the generator set.
4. Remove the carburetor and intake manifold to
provide clearance to lift the generator stator
assembly. Disconnect the following parts:
• choke heater lead wires
• throttle linkage
(mechanical governor: at carburetor}
(electronic governor:
at
actuator clip)
•
fuelline
• crankcase breather hose
• air preheater tube
Remove the intake manifold screws, and lift off
the carburetor and intake manifold
as
an as-
sembly. Refer to the
Fuel System description
in Section 6 for detailed removal procedures
and important safety instructions.
5. Disconnect the leads to the charge resistor,
the low oil pressure cut off switch, and the B+
terminal on the ignition coil.
6. Remove the brush block cover and disconnect
the
F1
(+)(outboard) and F2 (-)(inboard) lead
wires from the brush block terminals.
7. Pull each brush outward from the holder, and
at
the same time insert a piece
of
stiff wire into
the small hole in the end
of
the stator housing
8-8
(see Figure 8-2). Carefully guide the wire
through the brush block, then release each
brush. Verify that each brush is held off the slip
rings
by_
the wire.
lA CAUTION! The brushes
will
be
damaged
during disassembly
If
not
held
off
the
slip
rings. Make certain wire Is In place before
removing
stator
assembly.
BRUSH ,
...
~
LEAD
WIRE
HOLE
G1178s
FIGURE 8-2. BRUSH BLOCK ASSEMBLY
8. Remove the two control panel screws from the
housing, lift off the control panel and discon-
nect plug/jack connections
P1/J1
and P3/J3
of
the control printed circuit board.
9.
Place
a
3/8
inch
allen
wrench
in
the
head
of
the
rotor through-bolt. Use a rubber mallet and
sharply strike the allen wrench so the through-
bolt is driven in a counterclockwise (viewed
from generator end) direction. Several sharp
taps should break loose the generator.
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