(c)
Connect the ratiometric PAV to the breakout box at pins 5 (HI), 3 (LO), and 7 (GND) (Fig. 510).
(d)
Connect the breakout box and the -26 cable assembly to the electrical connector.
(e)
Connect breakout box pins 2 (LO) and 1 (HI) to the applicable REF pins on the ratiometric PAV.
(f)
Remove the DO-NOT-CLOSE tags and close these circuit breakers on the P11 panel: 1) 11E17, FLT CONT COMPUTER POWER LEFT 2) 11E20, FLIGHT CONT CMPTR PWR CENTER 3) 11E35, FLT CONT CMPTR PWR RIGHT
(g)
Loosen the clamping nut on the transducer clamp such that the transducer body can turn.
(h)
Turn the body until there is an in-phase absolute output voltage of less than 1.25v ac.
NOTE: The zero mark on the body must be less than 30 degrees
____
from the zero mark on the shaft.
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MAINTENANCE MANUAL
(i)
Tighten the clamping nut.
(j)
Make sure that the absolute output in-phase voltage is less than 1.25v ac.
(k)
Remove the lockwire on the control rod that is attached to the sensor crank.
(l)
Turn the adjustment nut on the control rod until the ratiometric PAV shows 0.0481 or less.
(m)
Use the breakout box and repeat the same adjustment steps for the other two neutral shift transducers.
(n)
Turn the feel unit input crank clockwise approximately 5-degrees.
(o)
With the crank held at 5-degrees, measure the in-phase output of each transducer.
(p)
Make sure that the voltage is in-phase with the input voltage.
(q)
Make sure that the difference in the voltage between two transducers is not more than 0.40v ac.
(r)
Turn the feel unit input crank counterclockwise approximately 2-degrees.
(s)
With the crank held at 2-degrees, measure the in-phase output of each transducer.
(t)
Make sure that the voltage is in-phase with the input voltage.
(u)
Make sure that the difference in the voltage between two transducers is not more than 0.40v ac.
(v)
Put a lockwire on the control rod.
(w)
Make sure that the value shown on the ratiometric PAV is 0.0481 or less.
(x)
Open these circuit breakers on the P11 panel and attach DO-NOT-CLOSE tags: 1) 11E17, FLT CONT COMPUTER POWER LEFT 2) 11E20, FLIGHT CONT CMPTR PWR CENTER 3) 11E35, FLT CONT CMPTR PWR RIGHT
(y)
Disconnect the breakout box and the -26 cable assembly from the electrical connector.
(z)
Disconnect the ratiometric PAV from the breakout box.
(aa) Disconnect the breakout box and the -27 cable assembly from the transducer.
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MAINTENANCE MANUAL
S 825-053
(4)
Neutral Shift Transducer Adjustment (PROCEDURE 3):
(a)
Remove the electrical connector from one of the three neutral shift transducers.
(b)
Connect the breakout box and the -27 cable assemblies to the transducer (Fig. 510).
(c)
Connect the PAV to the breakout box at pins 3 (SIG LO), 5 (SIG HI), and 7 (GND) (Fig. 510).
(d)
Connect the breakout box and the -26 cable assembly to the electrical connector.
(e)
Connect the DVM to the breakout box at pins 2 (LO) and 1 (HI) to monitor airplane power.
(f)
Connect pins 1 and 2 on the breakout box to the applicable REF pins on the PAV.
(g)
Remove the DO-NOT-CLOSE tags and close these circuit breakers on the P11 panel: 1) 11E17, FLT CONT COMPUTER POWER LEFT 2) 11E20, FLIGHT CONT CMPTR PWR CENTER 3) 11E35, FLT CONT CMPTR PWR RIGHT
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