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 TM 55-1905-219-14-8
4-7.5. MAGNETO ASSEMBLY - MAINTENANCE INSTRUCTIONS. (Continued)
c. Maintenance. The ignition system ordinarily requires little attention except for replacing of spark plugs
and occasional cleaning and adjusting of the breaker points. In event of failure, replacement of the breaker
points, ignition coils and condensers may be necessary. The magneto should not be completely disassembled
for general reconditioning purposes.
This task covers:
a. Testing
c. Removal
e. Installation
b. Adjustment
d. Repair
INITIAL SETUP
Test Equipment
References
NONE
NONE
Equipment
Special Tools
Condition
Condition Description
Paragraph
Feeler gage
Starter Assembly
Mallet
Removal
Point dresser
Material/Parts
Special Environmental Conditions
Dow Chemical DC-4
NONE
Personnel Required
General Safety Instructions
1
Observe WARNING in procedure.
LOCATION
ITEM
ACTION
REMARKS
TESTING
1. Magneto assembly If difficulty is encountered when starting the pump or if the engine does not start or
operates irregularly and there is reason to suspect faulty ignition, the following
procedures should be followed:
a. Disconnect and remove both spark plugs.
b. Ground one of the spark plug leads to a convenient part of the engine by holding the
contact end of the lead snugly against the cylinder block or other exposed parts of
the engine.
4-159
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