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////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
A
SEE A
FLIGHT COMPARTMENT
A
ROD ASSEMBLY CONTROL STAND (3 LOCATIONS)INSTALL THE RIG PIN
A
SEE C TL1
TLA ROD ADJUSTMENT SLEEVE (4 LOCATIONS)
LOCKING NUT FOR THE CONNECTING ROD OF THE THRUST LEVER POSITION RESOLVER (4 LOCATIONS)
THRUST LEVER POSITION RESOLVERS INSTALL THE RIG PINS, TR1 AND TR2, THROUGH THE
SEE B POSITION RESOLVER ARMS AND SUPPORT BRACKETS
CLAMPING SCREWS A-A(8 LOCATIONS)
Thrust Lever Position Resolvers Figure 501 (Sheet 1)
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LEVER 1 LEVER 2 LEVER 3
ROD ASSEMBLY
(EXAMPLE)
Thrust Lever Position Resolvers
Figure 501 (Sheet 2)
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C79517
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
(b) P1 of T1743 for the position resolver of the No. 2 thrust lever
(c) P1 of T1744 for the position resolver of the No. 3 thrust lever
(d) P1 of T1745 for the position resolver of the No. 4 thrust lever
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(16) Connect the pulse generator, multimeter, counter, and angle position indicator (API) to each position resolver for each of the adjustments that follow (Fig. 502).
(a)
For the position resolver of the No. 1 thrust lever, the connection will be made at the connector T1742.
(b)
For the position resolver of the No. 2 thrust lever, the connection will be made at the connector T1743.
(c)
For the position resolver of the No. 3 thrust lever, the connection will be made at the connector T1744.
(d)
For the position resolver of the No. 4 thrust lever, the connection will be made at the connector T1745.
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(17)
Loosen the clamping screws for the position resolver in the support bracket (Fig. 501).
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(18)
Set the output voltage and frequency for the pulse generator as follows:
(a) 6.00 |0.06 volts RMS
EXCITATION RETURN
SINE COSINE COMMON
EXCITATION RETURN
SINE COSINE COMMON
ANGLE POSITION INDICATOR
Angle Position Indicator Equipment Installation Figure 502
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(b) 2.95 |0.03 kHz
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(19) For the position resolvers of the thrust lever No. 1 and No. 2, adjust the position resolver with the steps that follow:
(a)
With pressure from your finger, turn the position resolver body until the API display value is 77.24 |0.167 degrees.
(b)
Make a record of the API display value.
(c)
Tighten the clamping screws in the support bracket.
S 825-018-N00
(20) For the position resolvers of the thrust lever No. 3 and No. 4, adjust the position resolver with the steps that follow:
(a)
With pressure from your finger, turn the position resolver body until the API display value is 12.76 |0.167 degrees.
(b)
Subtract the API display value from 90 degrees.
(c)
Make a record of the adjusted value.
(d)
Tighten the clamping screws in the support bracket.
