27-48-01
úLEVERS ON THE CONTROL STAND ú ú 02.1 Page 402 ú Sep 28/02
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A
757
MAINTENANCE MANUAL
AFT VIEW
B-B
Limit Switch and Position Transmitter Module Installation
Figure 401 (Sheet 2)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH ALTERNATE STAB TRIM ú
27-48-01
SWITCHES ON THE CONTROL STAND ú ú 02 Page 403 ú Dec 20/91
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757 MAINTENANCE MANUAL
(g)
11H10, STAB TRIM POS IND L
or STAB TRIM LEFT POS IND
(h)
11H11 or 11C05, STAB TRIM CONT L
(i)
11H19, STAB TRIM POS IND RIGHT
(j)
11H20, STAB TRIM CONT R
S 864-004
(3)
Put the RIGHT and CENTER STAB TRIM SHUTOFF valve switches on the control stand panel, P10, to the CUTOUT position.
S 864-005
(4)
Remove the power from the right and center hydraulic systems (Ref 29-11-00).
S 014-006
WARNING: STAY OFF THE SERVICE ACCESS DOOR, 311AL AND THE ELEVATOR
_______ CONTROL ACCESS DOOR, 313AL. YOUR WEIGHT CAN RELEASE THE SPRING-LOADED LATCHES ON THE DOOR. IF YOU FALL THROUGH THE DOOR, INJURIES CAN OCCUR.
(5)
Open the access door for the forward stabilizer compartment, 311AL (Ref 06-42-00).
D.
Remove the LSTM (Fig. 401)
S 034-007
(1)
Disconnect the electrical connector.
S 034-008
(2)
Remove the bolts from the mounting flange on the LSTM.
S 024-009
(3)
Carefully disengage the LSTM input shaft from the drive assembly.
(4)
Remove the LSTM.
S 024-010
TASK 27-48-01-424-011
3. Install the Limit Switch and Position Transmitter Module (LSTM)_______________________________________________________________
A. Consumable Materials
(1) C00271 Conversion Coating - Iridite 14-2
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27-48-01
ALL ú ú 04 Page 404 ú Jan 20/99
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757
MAINTENANCE MANUAL
B. References
(1)
06-42-00/201, Empennage Access Doors and Panels.
(2)
20-10-21/601, Electrical Bonding
(3)
20-10-22/701, Metal Surfaces Cleaning/Painting
(4)
20-30-03/201, Finishing Materials
(5)
24-22-00/201, Electrical Power - Control
(6)
27-41-00/501, Horizontal Stabilizer Trim Control System
(7)
27-48-00/501, Stabilizer Trim Position Indicating System
C.
Access
(1)
Location Zones 211/212 Control Cabin 311/312 Area Aft of Pressure Bulkhead to BS 1787.45
(2)
Access Panel
311AL Forward Stabilizer Compartment
D.
Install the LSTM (Fig. 401)
S 124-012
(1)
Clean the mating surfaces with abrasives (Ref 20-10-22).
S 624-013
(2)
Apply a layer of Iridite 14-2 to the bare aluminum surfaces (Ref 20-30-03).
S 424-014
(3)
Carefully engage the LSTM input shaft to the drive assembly.
NOTE: Make sure the tooth that is gone aligns with the splines on
____
the mating part.
S 434-015
(4) Turn the LSTM to align the mounting holes in the mounting flange with the holes in the drive assembly bracket.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
27-48-01
ALL ú ú 02 Page 405 ú Dec 20/90
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