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TM 1-4920-458-13&P
2-5.
PERFORMANCE CHECK
Set Tester on level work platform with a source of DC or AC power available.
CAUTION
Ensure oil level within limits before powering up.
Look through window on side of Tester and ensure oil level in reservoir is within MAX. and MIN. indicating lines on oil
reservoir. Refer to para. 3-9.
Apply pressure to airspeed indicator in accordance with Table 2-2 readings.
Apply vacuum to Altimeter/Rate-of-Climb in accordance with Table 2-2 readings.
TABLE 2-2. Performance Check
OVERPRESSURE
SYSTEM LEAK
INSTRUMENT
CHECK
POINT
SAFETY
RELIEF POINT
CHECK
POINT
MAX ALLOWABLE
LEAK RATE PER
MIN.
OPERATIONAL RATE
AIRSPEED
+20
FULL SCALE-
PRESSURE
400 KNOTS
-0
200 KNOTS
6 KNOTS/MIN.
25 Sec. Mi.
35 Sec. Max.
RATE OF CLIMB NOT
ALTITUDE
35,000F
+5,000 FT.
25,000 FT.
250 FT/MIN.
TO EXCEED 5,000 FT.
(35,000 FT.)
-0000
PER MIN. ASCENDING
OR DESCENDING
RATE OF CLIMB NOT
NEGATIVE ALT.
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-1,000 FT.
50 FT./MIN.
TO EXCEED 5,000 FT.
PER MIN. ASCENDING
OR DESCENDING
2-7
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