(j)
Make sure the portable tester display is 0162 to 0235.
S 865-018
(3)
Put the two IRS mode select switches to the OFF position.
S 865-019
(4)
If you will do no more tests, then do this task: "Put the Airplane to its Usual Condition."
TASK 31-24-00-735-043
8. Acceleration Signals Test_________________________
A. Access
(1) Location Zone
101 Control Cabin - Left
102 Control Cabin - Right
B. Procedure
S 865-043
(1)
Make sure you did the Prepare for Input Parameter Test task.
(2)
Put the TEST-NORMAL switch to the TEST position.
S 865-147
(3)
Set the INPUT switch on the DSDU to the ARINC OUTPUT DATA position.
(a)
Set the portable tester to SUBFRAME 0, WORD 2.
(b)
Make sure the portable tester display is 3714 to 4064.
(c)
Do the test again for WORDs 10 and 13.
(d)
Make sure the portable tester display is 3174 to 4064.
S 865-146
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A 737-300/400/500MAINTENANCE MANUAL
S 865-148
(4)
Put the INPUT switch on the portable tester to the ARINC INPUT DATA position.
S 865-149
(5)
Put the TEST-NORMAL switch to the NORMAL position.
S 865-030
(6)
If you will do no more tests, then do this task: "Put the Airplane to its Usual Condition."
TASK 31-24-00-735-031
9. Altitude Signals Test
_____________________
A. Special Tools and Equipment
(1) Pitot-Static Test Set
B. References
(1)
AMM 34-11-00/501, Pitot-Static System
(2)
AMM 34-11-01/501, Pitot-Static System
C. Access
(1) Location Zone
101 Control Cabin - Left
102 Control Cabin - Right
D. Procedure
S 865-135
(1)
Make sure you did the Prepare for Input Parameter Test task.
S 735-171
(2)
Do this test of the altitude signal:
(a)
Connect a pneumatic test unit to the pitot-static system (Ref 34-11-00/501 or 34-11-01/501).
(b)
Set the portable tester to SUBFRAME 0.
S 865-027
(3)
Use the pneumatic test unit to simulate an airspeed of 100 KTs on CADC No. 1.
(4)
Set the pneumatic test unit to the altitudes shown in the table.
(5)
Set the portable tester to the WORDS shown in the table.
S 735-030
(6)
Make sure the portable tester display agrees with the values in the table.
S 865-028
S 865-029
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A 737-300/400/500MAINTENANCE MANUAL
~............................................ | | PORTABLE TESTER DISPLAY | | ................................... | ALTITUDE |COARSE (WORD 23) | FINE (WORD 5) | .............................................. | 0 | 7775 to 0003 | 7676 to 0101 | .............................................. | 14,250 | 0604 to 0627 | 6360 to 7042 | .............................................. | 31,000 | 1657 to 1713 | 1431 to 1633 | 2..........….................…...............1
NOTE:____ When you are near the 0 feet altitude setting, the portable tester display can be: 6001, 6011, 6021, or 0000.
(7) S 865-038Put the pneumatic test unit to the usual pressure of the air.
(8) S 085-039Disconnect the pneumatic test unit from the pitot-static system.
(9) S 865-137If you will do no more tests, then do this task: to its Usual Condition." "Put the Airplane
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