guide bars keep the nosewheel straight during forward
movement. The outer wheel guide bars prevent the nose
wheel from sliding side to side once the nosewheel
clears the inner guide bars and aid in proper alignment
of launch bar to spreader assembly.
NOSE-GEAR-LAUNCH (NGL) ASSEMBLY
The NGL assembly consists of the slide assembly,
reset assembly, forward and aft slide-access tracks,
buffer cylinder assembly, tensioner cylinder assembly,
housing, drain pan assembly, and a shock absorber.
The slide assembly (fig. 5-15) consists of a body
containing rollers, which reduce friction during
forward and aft movement of the assembly; the buffer
hook, which engages the aircraft hold-back bar; and the
buffer-hook actuator assembly, which raises the buffer
hooks to flight deck level. The slide assembly is
mechanically connected to the buffer-cylinder piston
rods by three links.
BUFFER HOOK RESET
BUFFER HOOK ACTUATION
Figure 5-15.Slide assembly.