1
Fuel line
8
Crankcase drain line
15
Fuel tank mounting bracket
2
Heater fuel line assembly
9
Crankcase drain plug, 3/8 in.
16
Fuel tank
3
Screws, 5/16-24 x 3/8 in. Ig (2 rqr)
10
Air receiver
17
Fuel filter
4
Screw, 5/16-24 x 3/8 in. Ig (2 rqr)
11
Battery drawer heat duct
18
Engine fuel line assembly
5
Nuts, 9/16 in. (14 rqr)
12
Screws, 3/8 x 2 in. Ig (13 rqr)
19
Fuel filler pipe
6
Crankcase filler cap
13
Screw, 5/16-18 x 1 in. Ig (4 rqr)
20
Fuel tank cap
7
Screw, -20 x in. Ig (3 rqr)
14
Fuel tank drain plug, in.
Figure 23-Continued.
(5)
Connect the flexible fuel line to the
(3)
Install the fuel tank (16) on the
heater fuel pump.
bracket (15), by installing the four
screws (13) in mounting positions,
(6)
Connect the flexible fuel line to the
mounting bracket (15), by installing
fuel pump filter.
the four screws (13) in mounting
(7)
Tighten all connections and check for
positions.
leaks.
Section VII. ELECTRICAL SYSTEM
(5)
Remove the magneto by pulling
114. Description
straight out toward the reels, and off
The principal parts of the magneto-type ignition
the unit.
system are the ignition breaker point assembly with
(6)
Remove the magneto end cap by
ignition condenser, a fixed resistor, two spark plugs, and
removing four screws (8, fig. 20,, and
an ignition coil. The source of current is a starter-
tooth-type lockwashers which secure
generator assembly mounted on the pump end of the
the cap to the magneto housing.
crankshaft. One side of the wiring is connected to the
start switch, and the other side of the sending switch is
b.
Cleaning, Inspection, and Repair.
connected to the negative terminal on the battery. The
(1)
Clean parts with a clean lint-free cloth
ignition stop button is connected in line with the
or small stiff brush, using an approved
magneto points and coil. The ignition breaker assembly
cleaning solvent. Dry thoroughly.
is contained in the control box, mounted on the engine
side of the unit. The assembly consists of breaker
(2)
Wipe rotor with a clean lint-free cloth
points and an ignition condenser. Power for the starter-
dampened slightly with an approved
generator is supplied by two 12 volt batteries connected
cleaning solvent.
in series. The storage batteries are recharged by
(3)
Wipe the coil capacitor, and wiring
current supplied by the starter-generator. The voltage
with a clean cloth, take care that
regulator holds the generated voltage at a
wiring and terminals are not loosened
predetermined rate, and limits the starter-generator to its
or damaged while cleaning.
maximum safe output.
(4)
Wipe off ignition cable and ground
115. Magneto
cable with a clean, dry cloth.
a.
Removal.
(5)
Inspect the rotor for defects. Replace
rotor if any defects are noticed.
(1)
Disconnect the two spark plug leads
(11, fig. 20) from the magneto (9).
(6)
Inspect wiring for loose soldering or
burned spots due to excessive heat.
(2)
Disconnect the magneto ground cable
Replace wiring that is frayed, worn, or
(17) from the magneto.
damaged.
(3)
Remove one cap screw (4, fig. 21) on
(7)
Inspect coil for exposed windings.
the reel end of the magneto (6).
Replace coil, if faulty.
(4)
Remove one cap screw (2, fig. 22) on
(8)
Inspect points and replace if burned or
the pump side of the magneto.
otherwise damaged.
57
