OPERATING PROCEDURES -continued.
(6) Verify operation by observing vacuum pressure gage. Vacuum is indicated on gage in inches of mercury
(Hg). The vacuum pump has a 58-liter per minute free air capacity with a vacuum of 0.1 micron (0.001 mm
Gurgling sound occurs during operation in varying degrees under
four conditions of performance: when operating at high pressure
as in the beginning cycles of evacuation of a chamber; when the
oil level in the pump reservoir is too low: when a large leak is
present in the system; and when the vented exhaust valve is open.
(7) To shut down the vacuum pump, close the pump intake, then set the vacuum pump controller switch to the
Sampling and Caging Kit Operation (Refer to Figure 2-20). This kit is completely portable and self-contained. It
consists of the carrying case, which is divided into sections to hold the major items of equipment, an API gravity
computer, a cupcase thermometer, a hydrometer cylinder, gasoline indicting paste, water indicating paste, innage
tape and bob, a weighted beaker sampler, and standard hydrometers.
Setting the Kit Up for Operation.
(1) Clean innage tape with cheesecloth. Ensure equipment is clean, dry, and free of dirt.
(2) Check mercury columns in hydrometer and cupcase thermometer. If mercury column is separated or glass
cracked, replace the instrument.
(3) Check thermometer readings with other thermometers in the area to ensure they read the same.
(4) Before a product is sampled or gaged, rinse the containers with the same type of product to be sampled or
Never gage or sample a product in a tank if there is an electrical storm
or a source of sparks in the area. Failure to comply with this warning
could result in serious injury or death.
(5) Conduct tests in accordance with pamphlets stored in packet of case which contain ASTM test methods.
Anti-Icing Additive Test Kit Operation (Refer to Figure 2-21). The kit is portable and self-contained. It consists of
carrying case, refractometer, a separatory funnel, support base with rod and ring, aluminum dishes, piston pipets, a
graduated cylinder and a bottle with screw cap.
Anti-Icing Additive test Kit Setup and Operation.
(1) Using a clean, dry container, procure a l-pint (0.473 1) sample of fuel to be tested.