TM 55-4920-432-13&P
2-5
PERFORMANCE CHECK
2-5
Set Tester on level work platform with a source of DC or AC power available.
CAUTION
Ensure oil level within limits before powering up.
TABLE 2-2
PERFORMANCE CHECK
SYSTEM LEAK
INSTRUMENT
CHECK
MAX. ALLOWABLE
OPERATIONAL RATE
POINT
LEAK RATE
AIRSPEED
200
6 KNOTS PER
35 SECONDS, MAXIMUM; 25 SECONDS
KNOTS
MINUTE
MINIMUM (FOR FULL SCALE INDICATION)
ALTIMETER
25,000
FEET
250 FEET PER MINUTE
RATE-OF-CLIMB
(ASCENDING
OR
DESCENDING) NOT TO EXCEED 5000 FT.
PER MINUTE
Look through window on rear 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 para. 2-6, using Table 2-2 readings.
Apply vacuum to Altimeter/Rate-of-Climb in accordance with para. 2-6, using Table 2-2 readings.
2-6
