(10)
Do this task: "Adjustment - Elevator Power Control Unit" (Ref 27-31-14/501).
S 714-016
(11)
Do this task: "Operational Test - Elevator Power Control Unit" (Ref 27-31-14/501).
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737-300/400/500MAINTENANCE MANUAL
ELEVATOR POWER CONTROL UNIT - ADJUSTMENT/TEST
_____________________________________________
1. General_______
A. This procedure has two tasks, one for the adjustment and one for the operational test of the elevator power control unit (which is referred to as the "PCU"). The procedure has these parts:
(1)
An adjustment of the elevator PCU
(2)
An operational test of the elevator PCU.
TASK 27-31-14-825-002
2. Adjustment - Elevator Power Control Unit (Fig. 501)________________________________________
A. Special Tools and Equipment
(1) Rig Pin (E-5) - 0.309/0.311 inch diameter, 6.7 |0.25 inches long (MS20392-4)
NOTE: The rig pin is part of the rig pin kit F70207-69, -78 or -83.
____
(2)
F80055-1 - Trammel Bar
B.
Standard Tools and Equipment
(1)
Scale - 0-2 feet
C.
References
(1)
27-31-00/201, Elevator and Tab Control System
D.
Access
(1)
Location Zone
704 Tail Cone
711 Elevator and Tab, LH
712 Elevator and Tab, RH
(2)
Access Panels
3801 Tail Cone Access Door, LH
3802 Tail Cone Access Door, RH
E.
Procedure
(1)
Use the trammel bar to set the B dimension at 41.57 |0.01 inches.
S 865-004
(2)
Do this task: "Null Procedure - Mach Trim Actuator" (Ref 27-31-00/201).
(3)
Install the rig pin E-5 in the aft control quadrant.
(4)
Get access to the input rods through access door 3801 or 3802.
S 865-003
S 495-005
S 865-006
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A 737-300/400/500MAINTENANCE MANUAL
OUTPUT TORQUE FLEXIBLE
TUBE HYDRAULIC LINES
SEE C
SEE A
POWER
UPPER
CONTROL
MOUNTING
UNIT
BOLT
SEE B ELECTRICAL CONNECTOR
POWER
CONTROL
UNIT
LOWER MOUNTING BOLT
INPUT
CRANK MOUNTING BRACKET
CLEVIS
1
SLEEVE
1
FWD RIG PIN
E-5
INPUT ROD A
1
ELEVATOR
TAILCONE
FWD
B
INDEX MARK
1/2 TURN OF THE SLEEVE MOVES THE ELEVATOR TE
1
0.15 INCH. 1/2 TURN OF THE ROD MOVES THE
ELEVATOR TE 0.18 INCH. MAKE SURE TO ADJUST
THE SLEEVE AND THE ROD IN THE SAME DIRECTION.
KEEP THE NUMBER OF THREADS THAT SHOWED ON THE
RIGHT SHOWN, LEFT OPPOSITE
TWO SIDES OF THE SLEEVE APPROXIMATELY EQUAL.
C
Elevator Power Control Unit Adjustment
Figure 501
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737-300/400/500MAINTENANCE MANUAL
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