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TM 10-4320-347-13&P
SECTION IV. OPERATION UNDER UNUSUAL CONDITIONS
2.14. OPERATION UNDER UNUSUAL WEATHER . The pump assembly is designed to operate normally
within a wide range of climatic conditions. However, some extreme conditions require special operating and
servicing procedures to prevent undue loading and excessive wear on the equipment. These unusual
conditions and the special steps to be performed are listed in the following paragraphs.
a.
Operation in Extreme Cold.
WARNING
Wear gloves, avoid touching metal surfaces with bare hands.
Personal injury can result from freezing.
CAUTION
Rubber and plastic parts such as hoses and nozzle end piece
become stiff and are more easily damaged when they are cold.
Take additional care when handling these items.
b.
Operation in Extreme Heat.
(1) Protect pump assembly from direct heat of the sun.
(2) If pumping assembly is not in use and suction and/or discharge hose assemblies are not installed,
be sure that suction (intake) and discharge couplings are covered with dust caps or dust plugs as
applicable.
(3) Increase the frequency of PMCS as needed to match the local warmer weather conditions.
c.
Operation in Sandy or Dusty Areas. Dusty and sandy conditions can seriously affect the operation
of the pump assembly. When operating the pump assembly in these dusty and sandy conditions,
perform the following steps.
(1) Fuel which has been contaminated by dust and sand can severely affect the usability of the fuel
being pumped by the pump assembly. Special care must be taken to ensure that the fuel being
pumped does not have dust or sand in it when using the pump assembly in dusty and sandy
conditions. Be sure that all hose and piping connections are tight. Be sure that the insides of all
pump assembly components are clean before piping connections are made during pump assembly
set up and assembly.
(2) During the handling of fuel, while performing any PMCS procedure, or while dispensing fuel, be
sure that sand or dust is not allowed to mix with fuel.
(3) If pumping assembly is not in use and suction and/or discharge hose assemblies are not installed,
be sure that suction (intake) and discharge couplings are covered with dust caps or dust plugs as
applicable.
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