S 736-049
 (16) Do the rudder freeplay check again for each of the remaining PCAs. Make sure only one PCA is pressurized during the check.
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757
MAINTENANCE MANUAL

 G. Put the Airplane Back to Its Usual Condition
 S 866-050
 (1)  
Remove the DO-NOT-CLOSE tags and close these circuit breakers on the P11 panel:

 (a)  
11H17, FLT CONT SHUTOFF TAIL LEFT

 (b)  
11H18, FLT CONT SHUTOFF TAIL CTR

 (c)  
11H28, FLT CONT SHUTOFF TAIL RIGHT

 S 866-051
 (2)  
Remove the DO-NOT-OPERATE tags and move the FLT CONTROL SHUTOFF L, R, and C switches on the P61 panel to ON.

 S 866-052

 (3)  
Remove electrical power if it is not necessary (Ref 24-22-00/201).

 TASK 27-02-00-736-053
 4.  Aileron Freeplay - Check________________________
 A. General
 (1)  Some freeplay in the PCA linkages is permitted, but the wear must be divided equally between the linkage components. If one component is worn more than the other components in the system, you must repair it.
AILERON QUADRANT
AND OVERRIDE
MECHANISM

SEE A
RIG-PIN
HOLE A3 (LEFT)
OR A4 (RIGHT)

AILERON QUADRANT AND OVERRIDE MECHANISM (LEFT SIDE SHOWN, RIGHT SIDE OPPOSITE)
A
Aileron-Quadrant Rig Pin Location Figure 601
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757
MAINTENANCE MANUAL

 B. Equipment
 (1)  Dial Indicator, Accurate to 0.001 inch
 (0.025 mm) and a minimum stroke of 1 inch -
(25.4 mm) Commercially Available
 (2)  Device to Hold the Dial Indicator, tightly
 against the fuselage

 NOTE: A machine shop tool commercially
____
 available (magnetic base with fixed rod
 and movable extension rod for dial
 indicator installation) can be used.

 (3)  
Spring Force Scale, Push-Type (0 to 150 Pound
 (0-667 newtons) Range) - Commercially Available

 (4)  
Rig Pins from Set B20003-XX (Ref 20-10-24/201):

 (a)  
A3 - P/N B20003-23

 (b)  
A4 - P/N B20003-23

 C.
References

 (1)  
20-10-24/201, Rig Pins

 (2)  
24-22-00/201, Electrical Power - Control

 (3)  
27-11-20/601, Aileron - PCA Inspection/Check

 (4)  
29-11-00/201, Main (Left, Right, and Center) Hydraulic Systems

 D.
Access

 (1)  
Location Zones
 568 Left Aileron
 668 Right Aileron
 211 Control Cabin, Left
 212 Control Cabin, Right

 E.
Prepare for the Inspection/Check

 S 866-054
 (1)  Supply electrical power (Ref 24-22-00/201).
 S 866-040
 WARNING: THE AILERONS, ELEVATORS, RUDDER, FLAPS, SLATS, SPOILERS, AND
_______ THE STABLILIZER ARE FULLY POWERED SURFACES. MAKE SURE THAT ALL EQUIPMENT AND PERSONS ARE AWAY FROM THE CONTROL SURFACES BEFORE YOU SUPPLY THE HYDRAULIC POWER. INJURY TO PERSONS AND DAMAGE TO EQUIPMENT CAN OCCUR.
 (2)  
Supply pressure to the left, right, and center hydraulic systems (Ref 29-11-00/201).

 S 826-056

 (3)  
Operate the aileron trim switches on the aft electronic control panel, P8, until the aileron trim indicator shows zero units of trim.

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