(2)
Clean the interface of the APPU (3), the APPU adaptor assembly (11), the bolts (2) and the washers (1) with CLEANING AGENTS (Material No. 11-004).
(3)
Examine the APPU (3) and the interface of the APPU adaptor assembly
(11) for damage, cracks and corrosion.
(4)
Make sure that the parts retained from the removed component are clean and in the correct condition.
(5)
Do an inspection of the component interface and/or the adjacent area.
(6)
On a new APPU (3) make sure that:
-
the marks in the viewing window align with their applicable fixed pointers
-
the marks on the drive shaft align with each other.
1EFF : ALL 1 27-51-18Page 411 1 1 May 01/04R 1 1 1CES 1
Subtask 27-51-18-420-052
B. Installation of the Asymmetry-Position Pick-Off Unit
CAUTION : MAKE SURE THAT THE FLAP SYSTEM IS IN THE ZERO POSITION BEFORE
_______ YOU INSTALL A NEW APPU. A NEW APPU IS SUPPLIED LOCKED IN THE ELECTRICAL AND MECHANICAL ZERO POSITION.
(1)
Make sure the gearbox quill shaft (10) is concentric within the spigot bore of the gearbox (9).
(2)
Remove the tie-wrap (6) from behind the locking plate (7).
(3)
Put the APPU (3) in position on the gearbox (9). Make sure the shroud slot and the key are correctly aligned.
(4)
Engage the APPU drive shaft (8) with the gearbox quill shaft (10).
CAUTION : DO NOT USE THE INSTALLATION BOLTS TO FULLY ENGAGE THE APPU
_______
DRIVE IN THE SPIGOT INNER SURFACE.
THIS WILL CAUSE:
-
DAMAGE TO THE APPU
-
DAMAGE TO THE SPLINES
-THE RETAINING PIN TO BREAK.
(a) Use hand pressure and push the APPU (3) fully in position in the gearbox (9).
NOTE : This force must only be sufficient to allow installation
____ of the washers (1) and the bolts (2). The force required will be approximately 3.5 daN (7.90 lbf).
(b) Hold the APPU (3) in this position and install the washers (1) and the bolts (2).
(5)
TORQUE the bolts (2) to between 0.78 and 0.96 m.daN (69.02 and 84.95 lbf.in).
(6)
Apply a layer of STORAGE PRESERVATION (Material No. 15-007) to:
-
the bolts (2) and the washers (1)
-
the joint between the APPU (3) and the gearbox (9).
(7)
Remove the blanking caps from the plugs (4) and (5) and the connectors A and B.
1EFF : ALL 1 27-51-18Page 412 1 1 May 01/04R 1 1 1CES 1
(8) To electrically connect the APPU: CAUTION : REFER TO THE MATCH MARKS MADE DURING THE REMOVAL WHEN YOU
_______ CONNECT THE ELECTRICAL WIRES. INCORRECT CONNECTION OF THE WIRES WILL CAUSE DAMAGE TO EQUIPMENT.
(a) Connect the plug (4) to the connector A and the plug (5) to the connector B.
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
Subtask 27-51-18-860-051
C. Aircraft Configuration
(1)
Remove the TOOL-ZERO LOCKING, FLAP SLAT CTL LEVER from the flap/slat control-lever quadrant.
(2)
If a new APPU was installed, remove the PIN RIGGING-FLAPS (TRACK 1) from the track 1 position.
(3)
Make sure that the work area is clean and clear of tool(s) and other items.
**ON A/C 301-399,
Subtask 27-51-18-860-051-A
C. Aircraft Configuration
(1)
Remove the TOOL-ZERO LOCKING, FLAP SLAT CTL LEVER from the flap/slat control-lever quadrant.
(2)
If a new APPU was installed, remove the PIN RIGGING FLAPS from the track 1 position.
(3)
Make sure that the work area is clean and clear of tool(s) and other items.
R **ON A/C ALL
Subtask 27-51-18-865-052
D. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 6CV, 8CV, 10CV, 12CV.
Subtask 27-51-18-710-050
E. Test
(1)
Install the safety collar on the circuit breakers 10CV and 12CV.
(2)
Do an operational test of the flap system (Ref. TASK 27-54-00-710-001).
5. Close-up
________
Subtask 27-51-18-410-050
A. Close Access
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Install the applicable access panel:
-
FOR 29CV install 575FB (Ref. TASK 57-51-37-400-004)
-
FOR 30CV install 675FB (Ref. TASK 57-51-37-400-004).
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