TM 55-4920-432-13&P
SECTION IV - OPERATION UNDER UNUSUAL CONDITIONS
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UNUSUAL CONDITIONS
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a.
Normal. The Tester can be carried from one work area to another when the accessories are
stowed in the cover compartment which is installed in the Tester.
b.
Extremes of Heat and Cold - unusual conditions. The Tester is designed to operate in
temperatures from -40 F to +120 F (-40 C to +50 C). When operating in high temperatures to 120
degrees, use extreme caution to keep Tester within operating limits. For low temperature operating
range (from +32 to -40 F), run the pump for at least 5 minutes with both selector valve knobs in the
OFF position and the knobs turned to open valves before starting tests.
c.
Other Unusual Conditions.
CAUTION
Contamination in the pneumatic system will damage the
instruments, controls, and the pump.
(1)
When operating the Tester in extreme conditions of snow, ice, rain, mud, dust, salt air or similar
conditions; do everything possible to prevent foreign material from entering the Pneumatic System.
(2)
After operation in extreme conditions, thoroughly clean and dry the Tester and accessories.
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EXTREME ENVIRONMENTAL MAINTENANCE
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There are no requirements for extreme environmental maintenance for the Pitot and Static Systems Tester.
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