(6)
Make sure that the basic adjustment G is 18.0 mm (0.7086 in.).
NOTE : You can measure the dimension G from the edge of the APU
____ compartment door (view C) to the center of the eye-bolt and then add to the measured value 3mm. The AD-line is the aircraft datum line (Y=0).
(7) Make sure that the basic adjustment H is 2.5 mm (0.0984 in.).
NOTE : You can measure the position of the eye-bolt (dimension A),
____ from the sidewall of the Air-intake-duct elbow (view D) to the eye-bolt center with the measuring tape aft looking forward direction left side.You can do the measurement again from the opposite side of the elbow (dimension B) to get a reference value.The difference of the two measured values must be 5mm. The eye-bolt position is 2.5mm out of the center line of the elbow. The AD-line is the aircraft datum line (Y=0).
NOTE : The worksteps 6 and 7 are only necessary if a new eye-bolt or
____ the air-intake duct with elbow should be installed.
Subtask 49-16-45-420-050
B. Installation of the Air Intake Deffuser and Elbow
(1)
Put the diffuser (20) and elbow assembly (26) in position. Make sure that the eye bolt (8) and the fitting (9) are aligned.
(2)
Install the bolt (15), the washer (10) and the castle nut (12). Do not fully tighten the nut at this time.
(3)
Make sure that the specified length of the tie-rod (22) is 311.5 mm (12.2637 in.). Adjust if necessary.
(4)
After adjustment put the eye-end fittings in line.
(5)
TORQUE the locknuts to between 0.5 and 0.7 m.daN (44.24 and 61.94 lbf.in) and safety with MISCELLANEOUS (Material No. 19-010).
(6)
Put the tie-rod (22) into the fitting and install the bolt (21), the washer (23) and the castle nut (24). Do not fully tighten the nut at this time.
**ON A/C 051-051,
Subtask 49-16-45-820-050-A
C. Adjustment
(1)
Close the access door 316AR (Ref. TASK 52-41-00-010-001).
(2)
When the APU access door 316AR is closed, the seal (1) is fully compressed. There must be a clearance K of 18.0 +2.0 -6.0 mm (0.7086 +0.0787 -0.2362 in.) between the APU plenum (33) and the elbow assembly (26) flanges. If the gap is incorrect, adjust the diffuser
(20)
assembly.
(a)
Open the APU access door 316AR (Ref. TASK 52-41-00-010-001).
(b)
Remove the diffuser (20) and elbow assembly (26).
(c)
Open the lockwasher (6) and loosen the nut (7).
(d)
Remove the eye-bolt (8) and discard the lock-washer (6).
(e)
Install a new lockwasher (6) and install the eye-bolt (8).
(f)
Adjust the eye-bolt (8) in half-turns until you get the correct length. (One half-turn equals 0.45 mm (0.0177 in.). The adjustment range is between the marking grooves.
(g)
Align the eye-bolt (8) and tighten the nut (7).
(h)
Install the diffuser (20) and elbow assembly (26).
(i)
Safety the nut (7) with the lockwasher (6).
(j)
Close the APU access door 316AR (Ref. TASK 52-41-00-410-001).
(3)
When the APU access door 316AR is closed, there must be a clearance L of 8.0 +4.0 -4.0 mm (0.3149 +0.1574 -0.1574 in.) between the APU plenum (33) and the elbow assembly (26) outer flanges. Clearance L must be measured at all positions on the four sides of the flanges. If the clearance is incorrect, adjust the diffuser assembly (20) as follows:
NOTE : The fittings (27) and (32) have adjustment serrations with a
____
pitch of 0.75 mm (0.0295 in.)
(a)
Open the APU access door 316AR (Ref. TASK 52-41-00-010-001).
(b)
Align the diffuser (20) and elbow assembly (26) longitudinally with the fitting (27).
(c)
Align the diffuser (20) and the elbow assembly (26) laterally with the fitting (32).
(d)
Protective Treatment WARNING : USE SOLVENTS/CLEANING AGENTS, SEALANTS AND OTHER
_______
(e)
Seal the tooth plates with SEALANTS (Material No. 09-016) after installation.
(f)
Apply LUBRICANTS (Material No. 06-001) to the screws (28) and paint the joints with SPECIAL MATERIALS (Material No. 05-005).
(g)
Close the APU access door 316AR (Ref. TASK 52-41-00-410-001).
SPECIAL MATERIALS ONLY WITH A GOOD SUPPLY OF AIR.
OBEY THE MANUFACTURERS INSTRUCTIONS.
PUT ON PROTECTIVE CLOTHING.
DO NOT GET THEM IN YOUR MOUTH.
DO NOT SMOKE.
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