S 865-195

 (5)  
Put the RIGHT and CENTER STAB TRIM SHUTOFF valve switches on the P10 panel to the CUTOUT position.

 S 865-102

 (6)  
Open these circuit breakers on the P11 panel and attach DO-NOT-CLOSE tags:

 (a)  
11B19 or 11A19, STAB TRIM ALT (INSTALLED)

 (b)  
11C12, STAB TRIM SHUTOFF LEFT

 (c)  
11C13, STAB TRIM SHUTOFF RIGHT

 G.
Column Breakout Force Test

 S 215-198
 WARNING: KEEP PERSONS AND EQUIPMENT AWAY FROM ALL CONTROL SURFACES
_______ WHEN HYDRAULIC POWER IS SUPPLIED. AILERONS, ELEVATORS, RUDDER, FLAPS, SLATS, SPOILERS, AND STABILZER ARE FULLY POWERED SURFACES. INJURY TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR WHEN HYDRAULIC POWER IS SUPPLIED.
 (1)  Make sure that the left, right, and center hydraulic systems are pressurized (AMM 29-11-00/201).
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MAINTENANCE MANUAL

 S 215-104
 (2)  Make sure that Dimension B on the stabilizer ballscrew actuator is
 15.89 | 0.01 inches (403.6 | 0.3 mm) (Fig. 502).
 S 865-105
 CAUTION: DO NOT LET THE PRESSURE GO ABOVE 4.75 PSI (32.8 KPA)
_______ (426 KNOTS). THIS WILL PREVENT DAMAGE TO THE FEEL COMPUTER. MAKE PRESSURE CHANGES SUCH THAT THE INDICATED RATE OF CLIMB (OR DESCENT) IS LESS THAN 5000 FEET PER MINUTE FOR THE STATIC SYSTEM AND 300 KNOTS PER MINUTE FOR THE PITOT SYSTEM.
 (3)  Pressurize auxiliary pitot systems No. 1 and 2 to between 0.70 and
 0.80 psig (4.8 and 5.5 kPa) (171.2 to 182.8 knots)
 (AMM 34-11-00/201).

 NOTE: Use airspeed values only when the static pressure on the
____
 airspeed indicator is open to ambient pressure.

 S 725-006
 (4)  
Do the steps that follow to make sure the control column breakout force is correct:

 (a)  
Shake the captain's control column to make sure it is at neutral.

 (b)  
Make sure the upper surface of the elevator trailing edge aligns with the locating hole on the index plate by less than | 0.15 inch (| 3.8 mm) (Fig. 505).

 (c)  
Use the control wheel adapter equipment to attach the force gage to the control column at the finger reference point (Fig. 512).

 (d)  
Slowly push the control column forward until the elevator trailing edge starts to move.

 (e)  
Make sure that the force at the point the elevator trailing edge starts to move is 3 to 5 pounds (14 to 22 newtons).

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757 MAINTENANCE MANUAL
 (f)  
Let the control column go to the neutral position.

 (g)  
Use the force gage at the finger reference point to slowly pull the control column aft until the elevator trailing edge starts to move.

 (h)  
Make sure that the force is 5.5 to 7.5 pounds (24 to 33 newtons) when the elevator trailing edge starts to move.

 (i)  
Remove the force gage and adapter equipment.

 S 865-106
 (5)  
Remove the pressure from auxiliary pitot systems No. 1 and 2 (AMM 34-11-00/201).

 H.
Elevator Column and Quadrant Override Test

 S 865-107
 WARNING: KEEP PERSONS AND EQUIPMENT AWAY FROM ALL CONTROL SURFACES
_______ WHEN HYDRAULIC POWER IS SUPPLIED. AILERONS, ELEVATORS, RUDDER, FLAPS, SLATS, SPOILERS, AND STABILIZER ARE FULLY POWERED SURFACES. INJURY TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR WHEN HYDRAULIC POWER IS SUPPLIED.
 (1)  
Make sure that the left, right, and center hydraulic systems are pressurized (AMM 29-11-00/201).

 S 215-339

 (2)  
　
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