R **ON A/C 061-061,
R (Ref. Fig. 403A/TASK 30-21-49-991-302-A) R **ON A/C ALL
Subtask 30-21-49-640-050
A. Lubricate the four bolts (10) with common grease lubricant (Material No. CP04-003).
Subtask 30-21-49-210-053
B. Examine the seals (5) and (25) to make sure that they are serviceable. Subtask 30-21-49-420-052
C. Installation of the Top Anti-ice Duct
(1)
Remove the blanking plugs from the anti-ice ducts and the engine port.
(2)
Attach the top anti-ice duct (15) to the engine using four bolts (10) and a seal (5). Do not torque the bolts at this time.
(3)
Connect the top anti-ice duct: CAUTION : MAKE SURE THE SMOOTH CIRCULAR SURFACE OF THE COUPLING IS
_______ RADIALLY OUTBOARD FROM THE ENGINE. DO NOT LET THE COUPLING TOUCH ENGINE COMPONENTS OR STRUCTURE. DAMAGE TO THE COMPONENTS OR STRUCTURE COULD OCCUR.
(a) Connect the top anti-ice duct (15) to the middle anti-ice duct (35). Use the coupling (20) and a seal (25). Tighten the coupling sufficiently to hold the anti-ice duct in position.
(4)
TORQUE the four engine bolts (10) to between 90 and 120 lbf.in (1.01 and 1.35 m.daN). Then lock the bolts with lockwire 0.032 in. (0.8 mm) dia (Material No. CP8001) or lockwire 0.032 in. (0.8 mm) dia (Material No. CP8002).
(5)
TORQUE the nut on the coupling (20), as follows:
(a)
TORQUE the coupling nut to between 70 and 85 lbf.in (0.79 and
0.96 m.daN).
(b)
Lightly hit the perimeter of the coupling in several places. Use a fiber hammer, not a metal hammer.
(c)
Do steps (a) and (b) above two more times. Then do step (1) again.
5. Close-up
________ Subtask 30-21-49-410-056
A. Close Access
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Close the thrust reverser doors (Ref. TASK 78-36-00-410-040): FOR 1000EM1 451AL, 452AR FOR 1000EM2 461AL, 462AR
Subtask 30-21-49-440-054
B. Make the thrust reverser serviceable (Ref. TASK 78-30-00-081-041). Subtask 30-21-49-410-060
C. Close Access
(1)
Close the fan cowl doors (Ref. TASK 71-13-00-410-040):
FOR 1000EM1
437AL, 438AR
FOR 1000EM2
447AL, 448AR
(2)
Remove the access platform(s).
(3) Remove the warning notice(s). Subtask 30-21-49-865-063
D. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1DN1, 1DN2
Subtask 30-21-49-862-058
E. De-energize the ground service network (Ref. TASK 24-42-00-862-001).
DUCTS - ANTI ICE - INSPECTION/CHECK
___________________________________
TASK 30-21-49-200-001
Inspection/Check of the Engine Air Intake Ice Protection
WARNING : BE CAREFUL WHEN YOU WORK ON THE ENGINE COMPONENTS IMMEDIATELY AFTER
_______ THE ENGINE IS SHUTDOWN. THE ENGINE COMPONENTS CAN STAY HOT FOR UP TO ONE HOUR.
1. Reason for the Job
__________________
Refer to the MPD TASK: 302149-01 Visual inspection of the air supply duct (for the air intake anti icing) and the related attach fittings in the core engine compartment.
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific circuit breaker(s) safety clip(s)
No specific warning notice
No specific access platform 1.5 m (4 ft. 11 in.)
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-42-00-861-001 Energize the Ground Service Network from the External Power 24-42-00-862-001 De-energize the Ground Service Network Supplied from the External Power
R 71-13-00-010-040 Opening of the Fan Cowl Doors 71-13-00-410-040 Closing of the Fan Cowl Doors 78-30-00-081-041 Make the Thrust Reverser Serviceable after
Maintenance
78-30-00-481-041 Make the Thrust Reverser Unserviceable for
Maintenance
78-36-00-010-040 Opening of the Thrust Reverser Doors
78-36-00-410-040 Closing of the Thrust Reverser Doors
