CHAPTER 2. OPERATING INSTRUCTIONS - TM-5-4320-273-140021

TM 5-4320-273-14

CHAPTER 2

O P E R A T I N G INSTRUCTIONS

WARNING

If equipment fails to operate, refer to

troubleshooting procedures in Chap-

ter 3 .

S e c t i o n I. OPERATING PROCEDURES

2 - 1 . General.

you must become familiar with all controls and in-

struments provided on the unit, The controls and in-

This section contains information and guidance for

struments are illustrated in figures 2-1 through 2-3.

personnel responsible for the operation of the pum-

ping assembly. It provides a description of the con-

a. Choke Control. The choke control (1, fig. 2-1)

trols and instruments necessary for safe and efficient

provides a means of regulating the amount of air en-

operation of the unit and gives instructions on start-

tering the carburetor. Pulling the choke out reduces

ing, stopping, and operating the unit.

the proportion of air in the fuel-air mixture; pushing

2-2. Controls and Instruments.

it fully in provides a balanced fuel-air mixture for

normal operation.

Before attempting to operate the pumping assembly,

7. Low oil pressure safety switch

Engine choke control

8. Engine tachometer-hourmeter

Throttle control

9. Pump discharge pressure gage

10. Engine vacuum gage

4. Oi1 pressure

11. Pump suction gage

5. Starter switch

64 Ignition switch

Figure 2.1. Instrument and control panel.

speed, Pushing the throttle fully in reduces the

The engine throttle con-

b. Engine Throttle Control.

engine speed to idling; pulling it fully out permits

trol (2) provides a means of controlling the engine

2-1