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TM 55-4920-378-14&P
Operations of the Tester
Table 2-1. Instrument Test Chart
OVERPRESSURE
SYSTEM LEAK
INSTRUMENT
OPERATIONAL
CHECK
SAFETY
CHECK
MAX.ALLOW-
RATE
PO)INT
RELIEF
POINT
ABLE LEAK
POINT
RATE PER MIN.
+0
10" EVERY 15 SEC. MAX.
MANIFOLD (VAC)
10" HG
HG
11" HG
V4" HYG/MIN
10" EVERY 15 SEC. MAX.
-1"
(30-20 RANGE)
+20
25 SEC. MIN.
AIRSPEED (PRESSURE)
400 KNOTS
-0
200 KNOTS
6 KNOTTSMIN
FULL SCALE=
35 SEC. MAX.
DELETED
DELETED
RATE OF CLIMB NOT TO
+5,000 Ft.
EXCEED 5,000 FT. PER.
ALTITUDE (35,000 FT.)
35,000 FT.
-0000
25,000 FT.
100FT/MIN.
MIN. ASCENDING OR
DESCENDING.
RATE OF CLIMB NOT TO
NEGATIVE ALT.
--
--
50 FT/MIN.
50 FT/MIN.
EXCEED 5,000 FT. PER.
MIN. ASCENDING OR.
DESCENDING
Maintenance TM 55-4920-378-14&P
2-2
Change 2
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