(5) Inspect all parts for wear, breaks,
117. Starter
cracks, damaged threads or other
a. Removal and Disassembly.
damage. Replace if necessary.
(1) Refer to paragraph 65 for removal of
(6) Inspect all electrical wiring for wear,
starter.
breaks, or corrosion. Repair or replace
(2) Refer to figure 33 for disassembly of
if unserviceable.
starter.
b. Cleaning, Inspection, Repair, and Testing.
(7) Use a multimeter and test between
(1) Clean all parts, except electrical wir-
brush holder and the commutator end
ing, armature, and field coils with an
head. If continuity is indicated re-
approved cleaning solvent and dry
place or repair the end head assembly
thoroughly.
(1, fig. 33).
(2) Clean the armature and field coils by
(8) Use a growler and test the armature
blowing them out with dry, com-
for shorts, grounds, and open circuit.
pressd air.
Replace if necessary.
(3) Inspect the armature shaft and com-
(9) Use a multimeter and test the field
mutator for wear. Turn down a worn
coils for continuity and grounds. Re-
commutator on a lathe and undercut
place if necessary.
the mica between the commutator
c. Reassembly and Installation.
bars. Replace the armature if the
(1) Refer to figure 33 for reassembly of
armature shaft is defective or dam-
starter.
aged in any way.
(4) Inspect the field coil insulators, ter-
(2) Refer to paragraph 65 for installation
o f starter.
minals and pole pieces for cracks or
breaks. Replace if necessary.
Section II. FUEL SYSTEM
(5) Maintain a pressure of 1450-1500
psi. Check the nozzle for dribble at
a. Removal. Remove the nozzle holders
the orifice, indicating a bad seat; or
for drops forming around the cap nut,
b.
Testing.
indicating a leak between the holder
(1) Connect the nozzle holder to a special
and valve body lapped surfaces.
hydraulic nozzle tester and include a
Caution: Keep hands away from
small fuel oil supply tank with a
nozzle spray. The high velocity can
filter.
puncture the skin and cause blood
poisoning.
(2) Close gage valve and work pump
(6) Close gage valve and observe spray
handle several sharp strokes to dis-
characteristics while working the
lodge any carbon or dirt particles from
pump about 100 strokes per minute.
t h e nozzle.
An unsymmetrical spray pattern, or
(3) Open gage valve and work pump
one showing a flag, heavy end, or de-
slowly. Observe nozzle opening pres-
flected core are undesirable and indi-
sure. This should be between 1,750-
cate need for repair or replacement of
1,850 psi except with new springs the
faulty parts.
setting should be 1,950-2,000 psi.
(4) To adjust opening pressure remove
holder cap, loosen locknut, and turn
a. Removal.
adjusting screw clockwise to raise the
(1) Remove all fuel lines from fuel pump
setting.
(22, fig. 39).
Note. It is recommended that all nozzles
(2) Remove nuts (19) and washers (20).
from the same engine be set at approxi-
(3) Remove fuel pump (22).
mately the same opening pressure.
AGO 8166A
