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51.03 MT ACT POS (VAC) Limits: -0.20 to 0.20
Test 51.04 ELEV POS (VAC) Limits: -0.55 to -0.45
Make sure the elevator trailing edge aligns with the index mark +/- 0.06 inch (1.5 millimeters).
Test 51.05 NSS POS (VAC) Limits: -1.77 to -1.67
Test 51.06 ELEV LVDT (VAC) Limits: -2.05 to -1.95
Test 51.07 ELEV POS (VAC) Limits: -0.55 to -0.45
Make sure the elevator trailing edge aligns with the index mark +/- 0.06 inch (1.5 millimeters).
Test 51.08 ELEV POS (VAC) Limits: -0.55 to -0.45
Test 51.09 ELEV POS (VAC) Limits: -0.55 to -0.45
Test 51.10 ELEV POS (VAC) Limits: -0.55 to -0.45
Test 51.11 ELEV POS (VAC) Limits: -0.55 to -0.45
Test 51.12 STAB POS (VAC) Limits: 4.47 to 5.29
Test 51.13 ELEVATOR LVDT Limits: -0.06 to -0.06
Test 51.14 ELEVATOR POS Limits: -0.20 to 0.20
Test 51.15 NSS POS Limits: -0.20 to 0.20
5) Push the INIT/REF key.
H. Put the Airplane Back to Its Usual Condition
SUBTASK 27-31-00-860-098
(1) Do this task: Put the Elevator Hydraulic systems A and B Back to the Condition Before the
Pressurization, TASK 27-31-00-840-801.
SUBTASK 27-31-00-410-021
(2) Close this access panel:
Number Name/Location
311BL Stabilizer Trim Access Door
------------------------- END OF TASK ---------------------------
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TASK 27-31-00-820-809
25. Elevator Power Control Unit (PCU) Input Rod (Pogo) - Functional Test
(Figure 502, Figure 516)
A. General
(1) This task is applicable for the left and right elevator PCUs.
B. References
Reference Title
27-31-00-700-801 Null Procedure - Mach Trim Actuator (P/B 201)
27-31-00-800-801 Elevator Hydraulic System A and B - Pressurization (P/B 201)
27-31-00-840-801 Put the Elevator Hydraulic systems A and B Back to the Condition
Before the Pressurization (P/B 201)
C. Tools/Equipment
NOTE: When more than one tool part number is listed under the same "Reference" number, the
tools shown are alternates to each other within the same airplane series. Tool part numbers
that are replaced or non-procurable are preceded by "Opt:", which stands for Optional.
Reference Description
SPL-1677 Assembly - Trammel Bar, Stabilizer Trim Actuator
(Part #: F80055-1, Supplier: 81205, A/P Effectivity: 737-100, -200,
-200C, -300, -400, -500, -600, -700, -700C, -700ER, -700QC, -800, -900,
-900ER, -BBJ)
SPL-1749 Tool - Lock Equipment, Aileron/Elevator PCU Input Rod (POGO)
(Part #: C27066-1, Supplier: 81205, A/P Effectivity: 737-600, -700,
-700C, -700ER, -700QC, -800, -900, -900ER, -BBJ)
D. Location Zones
Zone Area
317 Tail Cone Compartment - Left
318 Tail Cone Compartment - Right
E. Access Panels
Number Name/Location
311BL Stabilizer Trim Access Door
318BR Tailcone Access Door
F. Prepare for test:
SUBTASK 27-31-00-860-113
WARNING: MAKE SURE THAT PERSONS AND EQUIPMENT ARE CLEAR OF ALL CONTROL
SURFACES BEFORE YOU SUPPLY HYDRAULIC POWER. AILERONS, RUDDERS,
ELEVATORS, FLAPS, SPOILERS, SLATS, AND THRUST REVERSERS CAN MOVE
QUICKLY WHEN YOU SUPPLY HYDRAULIC POWER. THIS CAN CAUSE INJURY TO
PERSONS AND DAMAGE TO EQUIPMENT.
(1) Pressurize elevator hydraulic systems A and B. To pressurize them, do this task: Elevator
Hydraulic System A and B - Pressurization, TASK 27-31-00-800-801.
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SUBTASK 27-31-00-010-030
(2) Open this access panel:
Number Name/Location
311BL Stabilizer Trim Access Door
SUBTASK 27-31-00-860-114
(3) Use the bar, SPL-1677 to set the "B" dimension at 4 units of trim (39.89 +/- 0.01 inches or 1013.2
+/- 0.3 mm) (Figure 502).
SUBTASK 27-31-00-010-040
(4) Remove this access panel:
Number Name/Location
318BR Tailcone Access Door
G. Elevator Power Control Unit (PCU) Input Rod Functional test.
SUBTASK 27-31-00-740-007
(1) Do this BITE test on the control display unit (CDU):
(a) Push the INT REF key on the CDU keyboard.
(b) Null the mach trim actuator, do this task: Null Procedure - Mach Trim Actuator,
TASK 27-31-00-700-801.
(c) Push the Line Select Key (LSK) that is adjacent to these selections:
NOTE: Use the NEXT PAGE or PREV PAGE key to change page if it is necessary. During
the BITE test, if the "CONTINUE" shows, then push the LSK that is adjacent to
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737-600-700-800-900 AIRCRAFT MAINTENANCE MANUAL飞机维护手册3(8)
