new08-B737-03DOWNLOCKPIN

1、PTR训练教材GROUND LOCK ASSEMBLIES - MAINTENANCE P RACTICESA/P TYPE: B737CL1. Gen eralThis subject has two tasks, one for the removal/i nstallati on of the ground lock assembly and one for the removal/installation of the nose gear steering lockout pin.2. Grou nd Lock Assembly - Removal/I nstallation (Fig

2、. 201)A. P rocedure - I nstall the Gear Ground Lock Assembly (WARNING-1)Step -1. Make sure the nose and main landing gear are all in the dow n and lockedposition (WARNING-2).Step-2. Insert the ground lock assembly in the lock brace. Insert the safety pin inthe ground lock assembly.B. P rocedure - Re

3、move the Gear Ground Lock AssemblySte p-1. Remove the safety pin from the ground lock assembly that is in stalled inthe landing gear brace. P ull the ground lock assembly from the lock brace.Ste p-2. Store the safety pin to its in itial p ackage.3. Direct ions:WARNING-1: YOU MUST MAKE SURE THE NOSE

4、LANDING GEAR IS IN THEDOWN AND LOCKED P OSITION BEFORE YOU TRY TO INSTALL THEGROUND LOCK ASSEMBLY IN THE NOSE LANDING GEAR. IF THENOSE LANDING GEAR IS NOT IN THE DOWN AND LOCKED P OSITION,THE NOSE LANDING GEAR COULD RETRACT AND CAUSE INJURIESOR DEATH THE P ERSONS AND DAMAGE TO EQU IP MENT.WARNING-2:

5、 YOU MUST BE CAREFUL WHEN YOU INSTALL THE GROUNDLOCK ASSEMBLIES IN THE LANDING GEAR. MAKE SURE OTHERP ERSONS DO NOT MOVE THE CONTROL LEVER FOR THE LANDING工具设备模块修正日期：2005.6.22页码：1For Trai ning Purp ose OnlyPTR训练教材工具设备模块修正日期：2005622页码：3For Trai ning Purp ose OnlyGEAR TO THE UP P OSITION. IF THEYMOVE T

6、HE CONTROL LEVERTO THE UP POSITION, THE LANDINGGEAR COULD RETRACT ANDCAUSE INJURIES OR DEATH THEPERSONS AND DAMAGE TOEQU IP MENT.END OF TASKSEEMAIN GEARSAFTYNOSE GEARGround Lock AssemblyFigure 201PTR训练教材A/P TYPE: B737NG1. Gen eralA. The dow nl ock pins are items of safety equipment. You in stall the

7、 dow nl ock pins to make sure the landing gear does not retract whe n you do maintenance on the air plane.B. You also in stall the dow nl ock pins (with the safety hardware) whe n the air plane must fly with the landing gear locked in the exte nded po siti on.2. P rocedures for the Landing Gear Down

8、l ock Pins In stallati on (Figure 201, Figure 202)Step -1. Make sure the nose and main landing gear are dow n and locked.Ste p-2. Make sure the con trol lever for the landing gear on the cen ter in strume ntpanel is in the DN p ositio n (WARNING-4). Attach a DO-NOT-OP ERATE tag on the con trol lever

9、 for the landing gear.Ste p-3. Put the dow nl ock pin equi pme nt, SP L-1880 4 through the upper 1 a ndthe lower 3 lock links for the mai n Ian di ng gear (WARNING-5). Make sure the REMOVE BEFORE FLIGHT streamers are extended and can be easily see n.Step-4. Install the downiock pin equipment, SPL-18

10、80 21 through the forward 24and the aft 22 lock links for the nose landing gear; for the nose landing gear: Make sure the REMOVE BEFORE FLIGHT streamer is extended and can be easily see n.Ste p-5. To i nstall the lever lock NLG towi ng lever pin, SP L-1499 25 through thepin hole in the towi ng lever

11、 27 to hold the lever in the towi ng p ositi on; for towing the airplane, do the steps below (WARNING-6). Make sure theREMOVE BEFORE FLIGHT streamer is exte nded and can be easily see n.3. P rocedures for Landing Gear Downl ock Pins Removal (Figure 201, Figure 202)A. Landing Gear Downl ock Pins Remo

12、val工具设备模块修正日期：2005.6.22页码：4For Trai ning Purp ose OnlyPTR训练教材工具设备模块修正日期：2005.6.22页码：6For Trai ning Purp ose OnlySte p-1. Remove the dow niock pin equi pme nt, SP L-1880 4 from the upper 1 a ndthe lower 3 lock links.Step-2. Remove the dow niock pin equi pme nt, SP L-1880 21 from the forward 24and the

13、 aft 22 lock links for the nose landing gear.Step-3. Remove the lever lock NLG towing lever pin, SPL-1499 25 from thetowi ng lever 27 for the nose wheel steeri ng mecha nism.4 Directions:WARNING-4: MAKE SURE OTHER P ERSONS DO NOT MOVE THE CONTROLLEVER FOR THE LANDING GEAR TOTHE UP POSITION. IF THEYM

14、OVE THE CONTROL LEVER TO THEUP POSITION, THE LANDINGGEAR COULD RETRACT AND CAUSEINJURIES TO PERSONS ANDDAMAGE TO EQU IP MENT.WARNING-5: If the dow niock pin will n ot go i nto the lock lin ks, it is po ssible anadjustme nt of the lock links is n ecessary.WARNING-6 : If the downiock pin, will not go

15、into the lock links, it is possible anadjustme nt of the lock links is n ecessary.WARNING-6: The towing lever lets you depressurize the nose wheel steeringsystem .In stallati on of the dow nl ock pin in the towi ng lever lets you tow theair plane without dep ressuriz ing the hydraulic system A.END OF TASKPTR训练教材C1 UPPER LOCK LINKo“LOCK PIN3J LOUER LOCK LINKINBODOWhiLOCK STRUT©Main Landing g/i* DqwhIoc* Pin InstallalionFigure 201 ($he&