(a)  
Put the lock in the location of the actuator that you removed.

 (b)  
Attach the lock to the pillow block (3) with its four bolts.

 (c)  
Adjust the length of the lock until you can connect it to the rudder with the pin.

 (d)  
Install the three lockpins in the lock.

 (e)  
Remove the rudder clamp from between the upper and lower rudders.

 TASK 27-21-15-404-041
 8.  Upper Rudder Lower Actuator Installation (Fig. 401)________________________________________
 A. Special Tools and Equipment
 (1)  
ST2580-267, Spanner Wrench Adapter Set

 (2)  
3ME65B81000-1, Rudder Clamp

 (3)  
G27008-19, Rudder Actuator Lock

 (4)  
G27016-39, Hoist Frame

 (5)  
Fishpole Hoist - P/N PF51-009-1 or Equivalent
 PF Industries
 Hoist Manlift
 Didsbury Engineering

 B.
Consumable Materials

 (1)  
A00247, Sealant - BMS 5-95

 (2)  
D00054, Lubricant - Skydrol Assembly Lube MCS352

 (3)  
D00153, Fluid, Hydraulic Fire Resistant - BMS 3-11

 C.
Parts ~.............................................................................. | AMM | | AIPC | ................. ...........................| | FIG | ITEM | NOMENCLATURE | SUBJECT |FIG| ITEM | ...............................................................................| | 401 | 7 | Actuator | 27-21-15 | 01| 280 | | | 10 | Shim | | |760,765 | | | 11 | Bolt | | | 130 | | | 12 | Washer | | | 135 | | | 40 | Bolt | | | 140 | | | 41 | Washer | | | 190 | | | 43 | Washer | | | 195 | | | 44 | Nut | | | 200 | | | 45 | Bushing | | | 205 | | | | | | | | 2......…........…...................................…...........…...…..........1

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 D. References
 (1)  
AMM 27-21-15/501, Upper Rudder Power Control Actuator

 E.
Access

 (1)  
Location Zone
 324 Vertical Fin, Rear Spar to Trailing Edge
 326 Upper Rudder

 F.
Procedure

 S 494-042
 (1)  
Do these steps to install the rudder clamp, and remove the rudder actuator lock (referred to as the lock):

 (a)  
Make sure the lower rudder is aligned with the upper rudder.

 (b)  
Install the rudder clamp between the upper and the lower rudders approximately two inches from the trailing edge.

 (c)  
Remove the pin that connects the lock to the rudder.

 (d)  
Remove the four bolts that attach the lock to the pillow block (3).

 (e)  
Remove the lock from the airplane.

 S 224-043
 (2)  
Examine the parts that attach the actuator for worn areas.

 S 864-044

 (3)  
Retract the lower actuator (7).

 S 424-045

 (4)  
Use the fishpole hoist and the hoist frame equipment to install the lower actuator (7):

 (a)  
Install the shim (10) on the trunnion (8).

 NOTE: Install the same shim (10) that you removed from this
____ location. If a replacement shim is necessary, measure the thickness of the used shim (10). Remove the laminations on the new shim until it has the same thickness.
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 (b)  
Put the lower actuator in its position with the hydraulic ports up.

 (c)  
Put the lower actuator (7) on the trunnion (8).
　
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