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Table 3-5. Reid Vapor Pressure Apparatus Troubleshooting
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TM-5-6640-213-14 Laboratory Air Mobile Aviation Fuel NSN
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Table 3-6. Manometer Troubleshooting
TM 5-6640-213-14
Table 3-6 is a troubleshooting chart for
b.  Troubleshooting.
the manometer.
c.  Calibration.  The manometer is used to verify the accuracy
of the Reid Vapor pressure (RVP) gages.  Mercury is used as the
indicating fluid.  The manometer is equipped with a double scale
graduated in inches of mercury and pounds per square inch (psi).  The
scale has provisions for zero adjustment; it must be adjusted to the
zero position prior to verifying gage accuracy.  The accuracy of the
manometer is verified by use of a certified master gage having a
range of O to 15 psi graduated in increments of 0.1 psi and an
accuracy of + or - 0.05 percent.  Recommend A-level calibration
frequency is 180 days.
DISTILLATION TEST APPARATUS.
3-9 .
a.  Cleaning.  Use a clean cloth and a mild soap-and-water solu-
tion to clean the interior and exterior of the distillation unit.
Be careful not to damage the seal surfaces on
funnel and base, as this may cause leakage.
Chromic acid may be used occasionally to remove
heavy stains from the fitted glass.
b.  Inspection.  Inspect distillation test apparatus for defec-
tive switches, indicator lamps, defective heaters or defective
auto-transformers.  Inspect power cord and plug for loose wiring or
frayed insulation.  Check mechanical parts for freedom of operation,
check glass observation window for breakage or cracks.  Repair or
replace as necessary.
c.  Replacement.  To replace the distillation test apparatus from
its installation on top of the counter, the following procedure is
required.
(1) Remove power cord from outlet and any water located in
condenser unit.
(2) Remove drawer located under apparatus, and remove
attaching, screws, washers and nuts, securing attaching brackets to
apparatus.
(3) Lift to separate the shield assembly from the conden-
ser and disconnect the connector between the assemblies and remove
from laboratory bench.
MICROPOROUS FILTERING DISK HOLDER.
3-10.
Be careful not to damage the sealing surfaces on
funnel and base, as this may cause leakage.
Chromic acid may be used occasionally to remove
heavy stains from the fritted glass.

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