(15)
Make sure the doors for the nose landing gear close.
S 415-147
(16)
Close the access door for ground control of the landing gear doors, 198PR (AMM 06-41-00/201).
S 865-145
(17)
Remove the power from the hydraulic system if it is not necessary (AMM 29-11-00/201).
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(18) Remove electrical power if it is not necessary (AMM 24-22-00/201).
TASK 32-35-00-825-187
5. Adjustment - Landing Gear Alternate Extension (Fig. 501, 502, 503)
_____________________________________________
A. General
(1)
Use this procedure to adjust the mechanisms that release the locks for the alternate extension of the nose and main landing gear door actuators to their correct operation condition.
B.
Equipment
(1)
Door Lock Release Actuator Spring Extender, MLG
& NLG - B32051-1
(2)
Torque Wrench - commercially available (For
torque ranges, Fig. 502 and 503)
C.
Consumable Materials
(1)
C00259 Primer - BMS 10-11, Type 1
(2)
D00002 Antiseize, Compound - AMS 3080
D.
References
(1)
AMM 06-41-00/201, Fuselage (Major Zones 100 and 200) Access Doors and Panels
(2)
AMM 20-10-23/401, Lockwire
(3)
AMM 24-22-00/201, Electrical Power - Control
(4)
AMM 29-11-00/201, Main (Left, Right, and Center) Hydraulic Systems
(5)
AMM 32-00-20/201, Landing Gear Downlocks
E.
Access
(1)
Location Zones
115 Nose Landing Gear Wheel Well (Left)
116 Nose Landing Gear Wheel Well (Right)
143 Main Landing Gear Wheel Well (Left)
144 Main Landing Gear Wheel Well (Right)
211 Control Cabin (Left)
212 Control Cabin (Right)
711 Nose Landing Gear
731 Main Landing Gear (Left)
741 Main Landing Gear (Right)
(2)
Access Panel 198PR Door - Landing Gear Ground Control (Right)
F.
Prepare for the Adjustment
S 495-123
(1)
Make sure the downlocks are installed on the nose and main landing gear (AMM 32-00-20/201).
(2)
Pressurize the left hydraulic system (AMM 29-11-00/201).
S 865-199
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WARNING: MAKE SURE THAT PERSONS AND EQUIPMENT ARE CLEAR OF THE AREA
_______ AROUND THE NOSE AND MAIN LANDING GEAR. THE DOORS OPEN AT THE SAME TIME AND CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(3) Push the lock override and momentarily move the control lever for the landing gear to the UP position to release the lock on the landing gear doors.
S 865-196
CAUTION: DO NOT MOVE THE CONTROL LEVER TO "DN." THE DOORS ARE NOT IN
_______ A SAFE CONDITION. THEY WERE OPENED WITH THE NORMAL SYSTEM AND NOT BY THE DOOR GROUND RELEASE. THE DOORS WILL CLOSE QUICKLY IF THE LEVER IS MOVED TO "DN." THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(4)
Move the control lever to OFF and attach a DO-NOT-OPERATE tag.
S 865-194
(5)
Remove the pressure from the left and right hydraulic systems (AMM 29-11-00/201).
S 865-115
(6)
Open these circuit breakers on the main power distribution panel, P6, and attach DO-NOT-CLOSE tags:
(a)
6F5, LANDING GEAR ALTN EXT CONT
(b)
6F6, LANDING GEAR ALTN EXT MOTOR
S 865-114
(7)
Open this circuit breaker on the overhead circuit breaker panel, P11, and attach a DO-NOT-CLOSE tag:
(a)
11S17, DOORS CLOSE GROUND ACCESS
G.
Adjust the Lock-Release Mechanism for the Actuator on the Main Landing Gear Door (Fig. 501, 503)
(1)
Make sure the door lock-release actuator is fully retracted.
S 825-111
(2)
Move the control rod for the safety valve up until the drive pin on the sequencing crank touches the drive face on the input crank (View A-A).
S 825-113
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