TM 9-2330-381-14
4-60.
LOADING RAMP (CONT)
2.
Using one person to operate lifting device (23) and a second person to steady and guide ramp weldment (22),
raise and position ramp at rear of semitrailer with ramp pivot shaft lug weldments (26) alined with platform lug
weldment (20).
WARNING
The ramp pivot shaft weighs in excess of 140 pounds (63.5 kg). Use two people
when installing shaft or serious injury to personnel may result.
NOTE
Prior to installing ramp pivot shaft, be sure keyed end of shaft is pointed toward
outboard side of platform.
3.
Using two people, place leading edge of ramp pivot shaft (25) through outboard platform lug weldment (20) and
starts to enter outboard ramp weldment (26).
4.
Position ramp lift lever (4) between ramp lug weldments (26) and aline with pivot shaft (25). Check alinement of
pivot shaft (25), lift lever (4), and outboard lug weldments on ramp and platform. If necessary, operate overhead
lifting device as required to obtain proper alinement.
5.
With all components alined and, using a sledge hammer, continue driving pivot shaft (25) inboard through lift lever
(4), inboard ramp lug weldment, and through inboard platform lug weldment (20) until key slot in end of pivot shaft
(25) is properly positioned. If necessary, using a pipe wrench, turn pivot shaft (25) so that key slot is properly
alined.
6.
Install key plate (19) into key slot of pivot shaft (25) and secure with two lockwashers (18) and capscrews (17).
7.
Install quick-link (24) of chain assembly (2) to inboard side of ramp (22). Move lifting device as required until
ramp is in the forward stowed position. Insert chain hook in hole (3) on platform.
8.
Remove overhead lifting device (23) and lifting chain (21) from ramp.
4-298 Change 1
