Installation of the Right Variable Stator Vane (VSV) Actuator [CFML]

TASK 75-32-05-400-801-A
Installation of the Right Variable Stator Vane (VSV) Actuator

WARNING: BE CAREFUL WHEN YOU DO WORK ON THE ENGINE PARTS AFTER THE ENGINE SHUTDOWN. USE APPLICABLE THERMAL GLOVES. THE ENGINE PARTS CAN STAY HOT FOR ONE HOUR AFTER SHUTDOWN AND CAN BURN YOU.

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

ZONE: 210
ZONE: 400
FIN: 4022KS21
FIN: 4022KS22

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 1M(3 FT)
No specific	1	CAP - BLANKING
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 70 and 60 lbf.in (0.79 and 0.68 m.daN )
No specific	Torque wrench: range to between 124 and 106 lbf.in (1.40 and 1.20 m.daN )
No specific	Torque wrench: range to between 308 and 262 lbf.in (3.48 and 2.96 m.daN )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.CP2442)	engine oil

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
210	CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD
400	POWER PLANT, NACELLES AND PYLONS
FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL, 438AR, 452AR
FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL, 448AR, 462AR

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
10	GASKET SEAL	EIPC 73-00-00-20-410

E. Referenced Information

REFERENCE	DESIGNATION
TASK 70-70-00-910-804-A	Electrical Standard Practices
TASK 71-13-00-010-803-A	Opening of the Fan Cowl Doors
TASK 71-13-00-410-803-A	Closing of the Fan Cowl Doors
TASK 72-24-01-400-801-A	Installation of Segment Shrouds 1 thru 5
TASK 72-24-80-400-801-A	Installation of the Variable Bleed Valve (VBV) Ducts
TASK 73-29-00-740-802-A	Actuators Test (Menu Mode)
TASK 78-30-00-040-809-A	Deactivation of the Thrust Reverser System for Ground Maintenance
TASK 78-30-00-440-809-A	Reactivation of the Thrust Reverser System after Ground Maintenance
TASK 78-36-00-010-806-A	Opening of the Thrust Reverser Cowl Doors
TASK 78-36-00-410-806-A	Closing of the Thrust Reverser Cowl Doors
Right VSV Actuator

3. Job Set-up
Subtask 75-32-05-941-052-A

A. Safety Precautions
(1) On the center pedestal, on ENG panel 115VU:
(a) Make sure that the ENG/MODE selector switch is in the NORM position.
(b) Make sure that the ENG/MASTER 1(2) control switch was in the OFF position not less than five minutes before you do this procedure.
(c) Make sure that the WARNING NOTICE(S) is in position to tell persons not to operate:

The ENG/MODE selector switch, and
The ENG/MASTER 1(2) control switch.

(2) On the ENG section of maintenance panel 50VU:
(a) Make sure that the ON legend of the FADEC GND PWR/1(2) pushbutton switch is off.
(b) Make sure that the WARNING NOTICE(S) is in position to tell persons not to energize FADEC 1(2).

Subtask 75-32-05-010-054-A

B. Get Access
(1) Make sure that the fan cowl doors are open (Ref. AMM TASK 71-13-00-010-803):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL 448AR
(2) Make sure that the ACCESS PLATFORM 1M(3 FT) is in position.

Subtask 75-32-05-040-052-A

C. Deactivation of the Thrust Reverser System for Maintenance

WARNING: YOU MUST DEACTIVATE THE THRUST REVERSER BEFORE YOU DO WORK ON OR AROUND IT. IF YOU DO NOT, THE THRUST REVERSER CAN OPERATE ACCIDENTALLY AND CAUSE AN INJURY AND/OR DAMAGE.

(1) Make sure that you did the deactivation of the thrust reverser system for maintenance (Ref. AMM TASK 78-30-00-040-809).

Subtask 75-32-05-010-055-A

D. Get Access
(1) Make sure that the right thrust-reverser cowl-door is open (Ref. AMM TASK 78-36-00-010-806):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
452AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
462AR

4. Procedure
Subtask 75-32-05-420-050-A

A. Installation of the Right VSV Actuator
(1) Remove all the COVER - PROTECTION and CAP - PROTECTION from the openings, tubes, hoses and connectors.
(2) Install the sleeve (36) in the right VSV actuator (6).
(3) Put the right VSV actuator (6) in position on the bell crank assembly (21).
(4) Apply engine oil (Material No.CP2442) on the threads of the bolt (28), bolt (29), bolt (33) and bolt (35).
(5) Install the bolt (33) and the nut (34) that attach the right VSV actuator (6) to the bell crank assembly (21) hand-tight.
(6) Install the bolt (35), bushing (31) and nut (32) that attach the right VSV actuator (6) to the bell crank assembly (21) hand-tight.
(7) Install the bolt (29), bushing (30), washer (23) and nut (24) that attach the connecting link (22) to the right VSV actuator (6) hand-tight.
(8) Install the bolt (28), bushing (27), washer (26) and nut (25) that attach the bell crank assembly (21) and connector link (22) to the right VSV actuator (6) hand-tight.
(9) TORQUE the nut (34), nut (32), nut (24) and nut (25) to between 124 and 106 lbf.in (1.40 and 1.20 m.daN )

.
(10) Put a new EIPC 73-00-00-20-410 GASKET SEAL (10) between the right VSV actuator (6) and the fuel hydraulic VSV tube hose (11).
(11) Apply engine oil (Material No.CP2442) on the threads of the four bolts (12).
(12) Install the four bolts (12) that attach the fuel hydraulic VSV tube hose (11) to the right VSV actuator (6).
(13) TORQUE the four bolts (12) to between 124 and 106 lbf.in (1.40 and 1.20 m.daN )

.
(14) Install the drain tube (13) as follows:
PRE SB 72-0112
(a) Put the drain tube (13) in position and connect the drain tube (13) B-nut to the fuel hydraulic manifold (9) hand-tight.
END OF PRE SB 72-0112
(b) Connect the fuel hydraulic VSV tube hose (11) B-nut to the drain tube (13) hand-tight.
(c) Connect the drain tube (13) B-nut to the drain tube (17) hand-tight.
PRE SB 72-0112
(d) TORQUE the drain tube (13) B-nut at the fuel hydraulic manifold (9) to between 308 and 262 lbf.in (3.48 and 2.96 m.daN )

.
END OF PRE SB 72-0112
(e) TORQUE the fuel hydraulic VSV tube hose (11) B-nut at the drain tube (13) to between 308 and 262 lbf.in (3.48 and 2.96 m.daN )

.
(f) TORQUE the drain tube (13) B-nut at the drain tube (17) to between 308 and 262 lbf.in (3.48 and 2.96 m.daN )

.
PRE SB 72-0112
(g) Install the bolt (20) that attaches the loop clamp (14) and the drain tube (13) to the bracket (19) hand-tight.
(h) Install the bolt (16) that attaches the loop clamp (15) and the drain tube (13) to the bracket (18) hand-tight.
(i) TORQUE the bolt (20) and the bolt (16) to between 70 and 60 lbf.in (0.79 and 0.68 m.daN )

.
END OF PRE SB 72-0112
POST SB 72-0112
(j) Install the bolt (16) that attaches the loop clamp (15) and the drain tube (13) to the bracket (18) hand-tight.
(k) TORQUE the bolt (16) to between 70 and 60 lbf.in (0.79 and 0.68 m.daN )

.
END OF POST SB 72-0112
(15) Connect the electrical connector (7) to the right VSV actuator (6) (Ref. AMM TASK 70-70-00-910-804).
PRE SB 72-0112
(16) Connect the electrical connector (5) to the right MTC actuator (4) (Ref. AMM TASK 70-70-00-910-804).
(17) Put the two HJ8B electrical harnesses (1) and the four HJ8A electrical harnesses (3) in the six clips on the support bracket (2).
END OF PRE SB 72-0112
POST SB 72-0112
(18) Remove the CAP - BLANKING or plug from the electrical connector (5) and connect it to the harness receptacle bracket (8).
(19) Put the two HJ8B electrical harnesses (1) and the four HJ8A electrical harnesses (3) in the six clips on the support bracket (2).
END OF POST SB 72-0112
(20) Install variable bleed valve duct 3 (Ref. AMM TASK 72-24-80-400-801).
(21) Install segment shroud 2 (Ref. AMM TASK 72-24-01-400-801).

Subtask 75-32-05-710-051-A

B. Test(s)
(1) Do the actuators test (menu mode) (Ref. AMM TASK 73-29-00-740-802).

5. Close-up
Subtask 75-32-05-410-052-A

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the right thrust-reverser cowl-door (Ref. AMM TASK 78-36-00-410-806):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
452AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
462AR

Subtask 75-32-05-440-051-A

B. Do the reactivation of the thrust reverser after maintenance (Ref. AMM TASK 78-30-00-440-809).

Subtask 75-32-05-410-053-A

C. Close Access
(1) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-803):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL 448AR
(2) Remove the access platform(s).
(3) Remove the WARNING NOTICE(S).

[Rev.10 from 2021] 2026.04.01 03:14:58 UTC