ARMY TM 9-2805-256-14
AIR FORCE TO 38G2-102-2
NAVY NAVFAC P-8-611-14E
CHAPTER 2
OPERATING INSTRUCTIONS
P a ge
OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-1
Section l.
Description and Use of Operators Controls and lndicators . . . . . . . . . . . . . . . . . . . . 2-1
Section Il.
Preventive Maintenance Checks and Services (PMCS) . . . . . . . . . . . . . . . . . . . . . . 2-4
Section Ill.
Operation Under Usual Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-7
Section IV.
Operation Under Unusual Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-10
O V E R V I EW
This chapter contains instructions and procedures required to operate the engine safely and efficiently.
Section I. DESCRIPTION AND USE OF OPERATORS CONTROLS AND INDICATORS
Paragraph
P a ge
2-1
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-1
2 -2
Operators Controls and lndicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-1
2-1. General. This section contains a list of operator controls and indicators and a description of their use.
2-2. Operators Control and Indicators. The following is a list of operator controls and indicators for all
models of the engine. Although the appearance of the engine may vary between models the location and function
of the controls and indicators are similar (figure 2-1).
K e y
1
2
3
4
5
6
Control or Indicator
C h o k e
Air Cleaner Service Indicator
Throttle Control Models 1A08-3, -4
Oil Filler Tube and Gage
Ignition Switch Models 1A08-3, -4
Engine Stop Button Models
1A08-1, -2
Function
Used during engine start-up to reduce airflow
through carburetor, making starting easier.
Indicates to operator when air cleaner requires
servicing.
Allows operator to regulate speed of engine
between idle speed and governed speed.
Allows operator to check oil level in engine, and
provides means for adding oil as needed.
Used to stop engine.
Depressing button stops engine.
2-1
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