Section II. MOVEMENT TO NEW WORKSITE

piping has a large enough diameter to prevent

excessive exhaust back pressure in the engine.

Section II. MOVEMENT TO NEW WORKSITE

drain the pump; replace the plug.

2-6. Dismantling for Movement

(2) Drain the radiator and coolant lines (7 & 9, fig.

a. Short Distance Move.

1-2), engine oil pan (12, fig. 1-2) and fuel tank (11, fig.

1-2).

(1) Disconnect the suction and discharge hoses or

piping from the pump. Remove the pump drain plug

(3) Thoroughly clean exterior of pump.

(16, fig. 1-2) to drain the pump; replace the plug.

(4) Make sure that the fuel tank cap, radiator cap,

(2)

Perform the daily preventive maintenance

oil drain plug, coolant drain plugs, and all pump plugs

services (para 3-6).

are securely tightened.

(3) Close the engine and instrument panels.

(5)

Disconnect battery cables.

Tape cable

terminals and lay cables in the battery box to prevent

(4) Make sure all on-equipment tools are present,

shorting and electrical contact.

clean, and properly stowed.

(6) Secure the engine and instrument panels.

(5) Connect a cable or chain from the towing

vehicle to the round bar at the front of the skid base; tow

2-7. Reinstallation After Movement

the pump to the new location.

For reinstallation instructions, refer to paragraph 2-5.

b. Long Distance Move.

(1) Disconnect the suction and discharge lines from

the pump. Remove the pump drain plug (16, fig. 1-2) to

Section III. CONTROLS AND INSTRUMENTS

normal operating temperature, the needle should

2-8. General

indicate between 150and 185 F.

This section describes, locates, illustrates, and furnishes

(2) The gage incorporates a temperature safety

operator, crew, or organization maintenance personnel

switch designed to shut the engine down if the

sufficient information about various controls and

temperature of the coolant exceeds 190 The switch will

instruments for proper operation of the centrifugal pump.

permit starting of the engine when the temperature of

2-9. Controls and Instruments

the coolant drops to a safe level.

The purpose of controls and instruments and their

c. Ammeter. The ammeter (2, fig. 2-4) indicates the

normal and maximum readings are illustrated in figure

rate of charge or discharge of the batteries. The pointer

2-4 and in the following paragraphs 2-9a through 2-9o.

on the ammeter deflects to the right to indicate charge

a. Tachometer and Hourmeter. The tachometer and

and to the left to indicate discharge. After starting the

hourmeter (7, fig. 2-4) indicates the engine speed in

ammeter will indicate a high rate of charge until the

rpm, and the total number of engine hours. Normal

batteries are restored to full charge. After the unit has

engine operating speed is 2,250 rpm. The tachometer is

been inoperative for an extended period of time, the

geared to register one hour when the engine has turned

high charging time will be considerably longer after

over, 135,000 rpm (2,250 rpm X 60 minutes). By

starting. During normal operation, the ammeter should

keeping track of the hourmeter readings, it is easy to

indicate a slight charge rate.

determine the correct service and lubrication intervals.

d. Engine Oil Pressure Gage and Safety Switch.

b. Engine Water Temperature Gage and Safety

(1) The engine oil pressure gage and

Switch.

(1) The engine water temperature gage and safety

switch '(6, fig. 2-4) indicates the temperature of the

cooling fluid in the engine. When the engine is at its

2-5