Sling Assembly Installation
Figure 401 (Sheet 1)

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A 737-300/400/500MAINTENANCE MANUAL
TO THE OVERHEAD CRANE

REAR SPAR
SLING ASSEMBLY C55004-1

Sling Assembly Installation
Figure 401 (Sheet 2)

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A 737-300/400/500MAINTENANCE MANUAL
FUSELAGE FITTING

INBD
AFT
INCH
FRONT SPAR FITTING

REAR SPAR FITTING
MAKE SURE THERE IS NO CLEARANCE BETWEEN THE BOLT HEAD AND THE WASHER WHEN YOUEXAMINE THE NECCESSARY CLEARANCE BETWEEN THE FITTING AND THE NUT.

Vertical Fin-to-Fuselage Fitting Figure 402 (Sheet 1)
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A 737-300/400/500MAINTENANCE MANUAL
FIN

FITTING MAXIMUM TOTAL CLEARANCE OF

0.012 INCH BEFORE THE NUT FWD
IS TIGHTENED (OUTBOARD AND INBOARD FITTINGS) (2 LOCATIONS)
FUSELAGE FITTING

LOCKWIRE
FIN
HOLE

FUSELAGE
ANTIRATTLE
FITTINGS
WASHER

Vertical Fin-to-Fuselage Fitting
Figure 402 (Sheet 2)

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E07040
 C.
D.
E.

A
737-300/400/500MAINTENANCE MANUAL
 (5)
F70207-69 Rig Pin Kit (Centering Unit Output Crank R-5)References

 (1)  
AMM 27-21-00/201, Rudder and Rudder Trim Control System

 (2)
SRM 51-70-00, Repairs (Example)Access

 (1)  
Location Zones 201/202 Control Cabin 700 Empennage

 (2)  
Access Panels 3701 Stab Trim Access Door 9503/9504 Front Spar Access Door 9505/9506 Rear Spar Access Door

Prepare for the Removal
 S 864-002-B00
 (1)  Open these circuit breakers and attach DO-NOT-CLOSE tags:
 (a)  
P6 Load Control Center - Right
 1) VHF NAV-2 VOR/ILS
 2) INSTR XFMR-2

 (b)  
P6-1 Panel
 1) HF AC
 2) HF DC

 (c)  
P18 Load Control Center - Left
 1) VHF NAV-1 VOR/ILS
 2) INSTR XFMR-1

 (d)  
P18-2 Panel
 1) HF AC
 2) HF DC

 S 864-003-B00
 WARNING:_______RELEASE THE PRESSURE IN THE RUDDER HYDRAULIC SYSTEM. THE RUDDER CAN MOVE IF YOU PRESSURIZE THE SYSTEM. IF THE RUDDER MOVES, THE RUDDER CAN CAUSE INJURY TO PERSONS.
 (2)  
Do this task: "Remove the Pressure from Rudder Hydraulic Systems A and B" (AMM 27-21-00/201).

 S 414-004-B00

 (3)  
Open the vertical fin access doors.

 (a)  
Open the Stab Trim Access Door 3701.

 (b)  
Open the Front Spar Access Doors 9503 and 9504.

 (c)  
Open the Rear Spar Access Doors 9505 and 9506.

 (4)  
Install a rudder gust lock with a warning streamer.

 S 494-005-B00
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