3. Job Set-up
__________ Subtask 32-11-19-941-055
A. Safety Precautions
(1)
Make sure that the safety barriers are in position.
(2)
Make sure that the warning notices are in the cockpit to tell persons not to operate:
-
the landing gear
-
the main gear doors.
(3)
Make sure that a warning notice is in the cockpit to tell persons not to pressurize the Green hydraulic system.
(4)
Make sure that the ground safety locks are on the landing gear (Ref. TASK 32-00-00-481-001).
Subtask 32-11-19-860-056
B. Aircraft Maintenance Configuration
(1)
Make sure that the applicable MLG door is open (Ref. TASK 32-12-00-010-001).
(2)
Make sure that the GROUND LOCK SLEEVE (460005835) is on the applicable main gear door actuator.
(3)
Make sure that that the flight configurations were obeyed (Ref. TASK 32-00-00-860-001).
(4)
Make sure that the access platform is in position below the applicable zone 731(741).
Subtask 32-11-19-865-051
C. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------
49VU L/G/LGCIU/SYS1/NORM 1GA C09 121VU HYDRAULIC/LGCIU/SYS2 2GA Q35 121VU HYDRAULIC/LGCIU/SYS1/GRND SPLY 52GA Q34
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4. Procedure_________
(Ref. Fig. 401/TASK 32-11-19-991-002)
Subtask 32-11-19-560-051
A. Preparation for a Replacement Component
(1) If you are to install new lock springs (6) and (8):
(a) Install the new springs (6) and (8) into the lock spring guide block.
(b) Install the lock spring guide block assembly into the SPRING EXPANDER-MLG SIDE STAY (Ref. TASK 32-11-19-481-001).
Subtask 32-11-19-420-050
R B. Preparation for Installation
(1) Make sure that the parts retained from the removed component are clean and in the correct condition.
(2) Examine the pins (2) and (15) and the bores of the attachment lugs for damage, cracks and corrosion.
R R R NOTE : In the step that follows, make sure that the Materials No.____ 04-004 and No. 04-022 are not mixed together. Do not use them at the same time (Ref. SIL 12-008).
R R (3) Lubricate the pins (2) and (15), the bores of the attachment lugs and the bushes of the lock spring eye-ends with COMMON GREASE (Material No. 04-004) or COMMON GREASE (Material No. 04-022).
(4) Install the lock springs (6) and (8) through the lock spring guide block, with the eye-ends to the side-stay attachment lugs.
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Subtask 32-11-19-420-054
R C. Installation of the MLG Lock Springs
(1) Align the lock spring link with the attachment lugs, at the center-pivot attachment lugs, and install the washers (14).
(2) Install these items together: - the pin (15) - the lock spring (6) - the washers (16) and (17) - the lock spring (8) - the washer (18) - the nut (19).
(3) TORQUE the nut (19) to between 0.34 and 0.508 m.daN (30.08 and 44.95 lbf.in) and install a new cotter-pin (20).
R (4) Install the SPRING EXPANDER-MLG SIDE STAY, (Ref. TASK 32-11-19-481-001).
R R (5) Install the location pin (5) through the eye-ends of the lock springs (6) and (8). Turn the location pin (5) to align the lock spring eye-ends. Remove the location pin (5).
WARNING : BE CAREFUL WHEN YOU TENSION THE LOCKSPRINGS._______
R R (a) Adjust the SPRING EXPANDER-MLG SIDE STAY, by use of the driving nut (7). Align the eye-end of the lock springs (6) and (8) with the bores of the side-stay attachment lugs.
(6) Install these items together: - the pin (9) - the washer (10) - the lock spring (8) - the spacer (3) - the lock spring (6) - the washer (4).
(7) Attach the bullet (1) to the pin (2) and install the pin (2).
NOTE : The pin (2) will push out the pin (9).____
(8) Remove the bullet (1).
(9) Install the washer (11) and the nut (12). TORQUE the nut (12) to between 0.34 and 0.508 m.daN (30.08 and 44.95 lbf.in) and install a new cotter-pin (13).
R (10) Remove the SPRING EXPANDER-MLG SIDE STAY, (Ref. TASK 32-11-19-081-001).
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