WARNING:_______MAKE SURE THAT THE PROBE HEAT IS NOT ON. YOU CAN CAUSE INJURY TO PERSONS.
(3) Install the pitot-static probe adapter on the upper right pitot-static probe.
CAUTION:_______DO NOT EXTEND THE SEALS INTO THE PITOT DRAINS. YOU CAN CAUSE DAMAGE TO THE SURFACE IN THE AREA WHEN YOU REMOVE THE SEALS.
(a) Seal the pitot chamber drain hole on the bottom of the probe with vinyl adhesive tape.
NOTE: You will find the drainhloe about 2.25 inches aft of the
____
probe tip.
CAUTION: MAKE SURE THAT YOU FLUSH THE PROBE ADAPTER WITH WATER
_______ BEFORE YOU ATTACH THE ADAPTER TO THE PROBE. YOU CAN CAUSE DAMAGE TO THE PROBE OR THE ADAPTER.
(b) Flush the probe adapter with water.
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NOTE: A solution that has equal parts of ethylene glycol and
____ water must be used in temperatures between 32 degrees F and -40 degrees F.
(c) Install the probe adapter on the probe.
S 485-015
CAUTION: MAKE SURE THAT THE PITOT-STATIC PROBE HAS NO ADDED WEIGHT FROM
_______ THE TEST HOSES. YOU CAN BEND OR TWIST THE PITOT-STATIC PROBE OUT OF TOLERANCE.
(4) Connect the pneumatic test set to the pitot-static probe adapter.
(a)
Connect the pitot (pressure) source in the pneumatic test unit through the pitot control valve to the pitot cutoff valve.
(b)
Connect the inlet of probe adapter to the pitot cutoff valve through the pitot system test gage and flow restrictor.
(c)
Open the pitot cutoff valve.
D. The First Officer's Pitot System Leak Test
S 865-081
CAUTION: MAKE SURE THAT THE PITOT LINE PRESSURE IS EQUIVALENT OR MORE
_______ THAN THE STATIC LINE PRESSURE. KEEP THE PITOT PRESSURE CHANGE BELOW 300 KNOTS FOR EACH MINUTE. MAKE SURE THAT THE DIFFERENTIAL PRESSURE STAYS BETWEEN 0 AND 10.00 INCHES OF MERCURY. YOU CAN CAUSE DAMAGE TO THE PITOT-STATIC SYSTEM.
(1) Apply pressure to the first officer's pitot system equal to 300 |5 knots of airspeed (ambient pressure plus 4.53 |0.16 in. Hg).
S 865-083
CAUTION: HOLD THE PRESSURE, AS AN ALTERNATIVE, BEHIND THE CUTOFF VALVES
_______ DURING THE CUTOFF TIME. YOU CAN CAUSE DAMAGE TO THE EQUIPMENT WHEN YOU OPEN THE CUTOFF VALVES WITHOUT THE VACUUM.
(2)
Close the pitot cutoff valve to the system when the necessary airspeed is reached.
(3)
Stop for 5 to 6 minutes to allow the system to stabilize.
(4)
Write the airspeed.
(5)
Stop for one minute and read airspeed again.
S 865-085
S 865-086
S 865-087
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S 865-088
(6) Make sure that the airspeed does not decrease by more than 5.0 knots
(0.16 in. Hg)
S 865-089
CAUTION: MAKE SURE THAT THE PITOT LINE PRESSURE IS EQUIVALENT OR MORE
_______ THAN THE STATIC LINE PRESSURE. KEEP THE PITOT PRESSURE CHANGE BELOW 300 KNOTS FOR EACH MINUTE. MAKE SURE THAT THE DIFFERENTIAL PRESSURE STAYS BETWEEN 0 AND 10.00 INCHES OF MERCURY. YOU CAN CAUSE DAMAGE TO THE PITOT-STATIC SYSTEM.
(7) Open the pitot cutoff valve and send the first officer's pitot system to ambient pressure.
NOTE: You must release the pressure from the cutoff valves slowly.
____
E. Put the Airplane to Its Usual Condition
S 085-092
CAUTION: MAKE SURE THAT THE PITOT-STATIC PROBE HAS NO ADDED WEIGHT FROM
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