TM 5-4320-306-10
2-6. OPERATING PROCEDURE
a. Setup instructions. Proper selection of an operating site is important for efficient and troublefree pump
operation. Since the centrifugal pump unit is self-contained, it can be moved to the most favorable operating site. Select
an operating site with the following characteristics.
(1) Locate unit as close as possible to the liquid to be pumped with the suction (inlet) side toward the
source. Keep both the length of the suction hose and the height of the suction lift as short as possible.
(2) The operating site should be as level as possible (no more than 15 degrees slope) or the engine
lubrication system may not work properly.
(3) Keep the suction and discharge hoses as short and straight as possible.
(4) Allow adequate space to permit support of the suction and discharge hoses where they enter the pump.
b. Grounding. Ground the centrifugal pump unit as follows.
(1) Connect ground cable assemblies (1) to ground connection (2). Be sure that electrical connection is
tight.
NOTE
The earth surrounding ground rods must be moist to make a good electrical connection. In dry or
sandy areas, pour water around the rods to improve the connection.
(2) Drive ground rods (3) a minimum of 2-1/2 feet (0. 762 m) into the ground. Use nonsparking mallet
stowed in tool box.
(3) Connect ground cable assemblies (1) to ground rods (3). Be sure that connector (4) has made a tight
electrical connection.
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