|
| |
TM 5-4320-305-10
2-6.
OPERATING PROCEDURE (Continued)
(5)
Adjust the three jack extensions so
that the trailer is level. Although the
pump assembly will function while
within 15 degrees of level, a level
position is recommended for pump
efficiency and operating safety.
(6)
Connect ground cable assemblies (1)
to ground connection (2) on trailer.
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.
(7)
Drive ground rods (3) a minimum of 2-1/2 feet (0.762 m) into the ground. Use nonsparking mallet
stowed in tool box.
(8)
Connect ground cable assemblies (1) to ground rods (3). Be sure that connector (4) has made a tight
electrical connection.
WARNING
Do not attempt to pump any liquids for which this centrifugal pump unit has not been designed.
The centrifugal pump unit has been designed to pump potable water or petroleum-based fuels
with specific gravities between 0.85 and 1.0.
Do not pump potable water after the pump has been contaminated by pumping fuel.
c.
Preparation for starting. Although the
centrifugal pump unit is self-priming, it should never be
operated unless the pump body is filled with liquid to the
bottom of the suction port.
(1)
Open gate valve (1) of the pump
suction assembly.
(2)
Remove dust cap from priming port
(2) on pump body. Fill the pump
volute with the liquid that will be
pumped until it reaches the bottom of
the suction port. Replace dust cap.
When the centrifugal pump unit is
started, the pump body will prime and
reprime as necessary as long as the
pump body is full to the bottom of the
suction port.
(3)
Open gate valve (3) of the pump
discharge manifold assembly.
2-68
|
