S 864-013
(9)
Open these circuit breakers and attach DO-NOT-CLOSE tags:
(a)
P7, Overhead Circuit Breaker Panel
1) 7B11, UPR RUD RATIO AC PWR
2) 7B12, UPR RUD RATIO CONT
3) 7B13, UPR RUD RATIO DC PWR
4) 7B14, LWR RUD RATIO AC PWR
5) 7B15, LWR RUD RATIO CONT
6) 7B16, LWR RUD RATIO DC PWR
7) 7D16, RUD TRIM CONT
(b)
P180, DC Power Distribution Panel
1) 180E7, ELEV/RUD VLV SYS 2
2) 180E22, ELEV/RUD VLV SYS 4
3) 180H8, ELEV/RUD VLV SYS 1
4) 180H23, ELEV/RUD VLV SYS 3
S 014-014
WARNING:_______MAKE SURE THE AREA BELOW THE RUDDERS IS CLEAR. THE POWER CONTROL ACTUATORS WEIGH APPROXIMATELY 25 POUNDS (DRY WEIGHT). IF AN ACTUATOR FALLS, IT CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(10) Remove the applicable access panels.
TASK 27-21-16-004-016
3. Lower Rudder Upper Actuator Removal (Fig. 401)___________________________________
A. Special Tools and Equipment
(1)
ST2580-267, Spanner Wrench Set
(2)
G27008-19, Rudder Actuator Lock
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A
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MAINTENANCE MANUAL
LOWER RUDDER POSITION TRANSMITTER
SEE A
LOWER RUDDER POWER CONTROL PACKAGE
SEE B
2. TRUNNION BLOCK SEE 3. PILLOW SEE D C 35. WIRE BUNDLE LINES H1,H2 HYDRAULIC CLAMP A LOWER RUDDER 1. LOWER RUDDER
ROD CONTROL 8. INPUT 4. LOWER RUDDER UPPER ACTUATOR
CONTROL MODULE 5. LOWER RUDDER POWER
SEE E
CHANGER RATIO 7. RUDDER SEE B C 6. LOWER RUDDER H3,H4 HYDRAULIC LINES LOWER ACTUATOR
Figure 401 (Sheet 1) Lower Rudder Power Control Actuator
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MAINTENANCE MANUAL
12. ANTI-ROTATION STOP
ASSEMBLY
Lower Rudder Power Control Actuator
Figure 401 (Sheet 2)
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MAINTENANCE MANUAL
RUDDER PCP
A
Rudder PCP Hoist Installation Figure 402
F24764
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MAINTENANCE MANUAL
(3)
G27016-39, Hoist Frame Equipment - Upper and Lower PCU
(4)
Fishpole Hoist - P/N PF51-009--1 or Equivalent
PF Industries
Hoist Minilift
Didsbury Engineering
B.
Standard Tools and Equipment
(1)
Bucket - 1 gallon capacity (for hydraulic fluid)
C.
Access
(1)
Location Zones
324 Vertical Stabilizer, Rear Spar to Trailing Edge
325 Lower Rudder
D.
Procedure
S 864-017
(1)
Do the task to prepare for the removal of the PCA.
S 034-018
(2)
Remove the clamp (35) that holds the wire bundle to the upper actuator (4).
