(e)
Remove the downlock from the nose landing gear (AMM 32-00-20/201).
NOTE: It is not necessary to put the downlock for the nose
____
landing gear away.
(f)
Pressurize the left hydraulic system (AMM 29-11-00/201).
(g)
Supply electrical power (AMM 24-22-00/201).
EQUIPMENT IF THE AREA IS NOT CLEAR.
(h)
Use the OVRD button and move the control lever for the landing gear to the UP position.
(i)
After the nose landing gear is retracted, move the control lever to the OFF position.
(j)
Install the downlock for the nose landing gear in the lock link assembly.
(k)
Make sure the clearance between the up sensors for the nose landing gear and their targets is 0.08-0.10 inch. If the clearance is in the tolerance do the test of the sensors after you extend the nose landing gear. If the clearance is not in the tolerance, do the steps that follow to adjust the clearance.
(l)
Add or remove shim layers from the sensor bracket to adjust the clearance.
(m)
Remove the downlock for the nose landing gear from the lock link assembly.
EQUIPMENT IF THE AREA IS NOT CLEAR.
(n)
Move the control lever for the landing gear to the DN position.
WARNING:_______ MAKE SURE THAT PERSONS AND EQUIPMENT ARE CLEAR OF THE AREA
AROUND THE NOSE LANDING GEAR. THE MOVEMENT OF THE NOSE
LANDING GEAR CAN CAUSE INJURY TO PERSONS OR DAMAGE TO
WARNING:_______ MAKE SURE THAT PERSONS AND EQUIPMENT ARE CLEAR OF THE AREA
AROUND THE NOSE LANDING GEAR. THE MOVEMENT OF THE NOSE
LANDING GEAR CAN CAUSE INJURY TO PERSONS OR DAMAGE TO
32-61-03
ALL ú ú 01 Page 212 ú Jan 28/02
A
757
MAINTENANCE MANUAL
(o)
Install the downlock for the nose landing gear
(AMM 32-00-20/201).
(p)
Lower the airplane and remove the jacks (AMM 07-11-02/201).
WARNING:_______OBEY THE REMOVAL PROCEDURE FOR THE DOOR LOCKS. THE DOORS OPEN AND CLOSE QUICKLY. THE MOVEMENT OF THE DOORS CAN CAUSE INJURIES PERSONS AND DAMAGE TO EQUIPMENT.
(q)
Remove the door locks from the landing gear doors and close the doors (AMM 32-00-15/201).
(r)
Remove the pressure from the hydraulic system if it is not necessary (AMM 29-11-00/201).
(s)
Remove electrical power if it is not necessary
(AMM 24-22-00/201).
S 822-041
(3) Do the steps that follow to adjust the door closed sensors for the nose landing gear (Fig. 202):
WARNING:_______OBEY THE INSTALLATION PROCEDURE FOR THE DOOR LOCKS. THE DOORS OPEN AND CLOSE QUICKLY. THE MOVEMENT OF THE DOORS CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
(a)
Open the landing gear doors and install the door locks (AMM 32-00-15/201).
(b)
Remove the bolt that holds the adjustable pushrods for the mechanism that operates the forward door to the bellcrank.
(c)
Remove the top end of the adjustable pushrod on the left or right door from the bellcrank.
NOTE:____Keep one of the forward doors connected. Then you can close it with the mechanism that operates the doors.
(d)
Install the bolt on the bellcrank. Tighten the bolt.
(e)
Turn the adjustable pushrod that is disconnected around the pivot on the door. This will keep it clear of the other door when it closes.
WARNING:_______OBEY THE REMOVAL PROCEDURE FOR THE DOOR LOCKS. THE DOORS OPEN AND CLOSE QUICKLY. THE MOVEMENT OF THE DOORS CAN CAUSE INJURIES TO PERSONS AND DAMAGE TO EQUIPMENT.
(f)
Remove the door locks from the landing gear doors and close the doors (AMM 32-00-15/201).
(g)
Make sure the height of the sensor target is 0.14-0.16 inch above the sensor surface (Fig. 202). Add or remove shim layers between the sensor bracket and the bulkhead of the nose wheel well to decrease or increase the height.
(h)
Make sure the clearance between the sensor and the target is 0.10-0.12 inch. Add or remove shim layers between the sensor bracket and the sensor to decrease or increase the clearance.
32-61-03
ALL ú ú 01 Page 213 ú Jan 28/02
A
757
MAINTENANCE MANUAL
WARNING:_______OBEY THE INSTALLATION PROCEDURE FOR THE DOOR LOCKS. THE DOORS OPEN AND CLOSE QUICKLY. THE MOVEMENT OF THE DOORS CAN CAUSE INJURIES TO PERSONS AND DAMAGE TO EQUIPMENT. 中國航空網 www.k6050.com 航空翻譯 www.aviation.cn 本文鏈接地址：757 AMM 飛機維護手冊 起落架 CHAPTER 32 - LANDING GEAR 3(168)
