1-7. Location and Description of Major Components (cont'd)
o. Tool Box Assembly (M129A4 only)
Tool box assembly (1) is located on the left rear floor, to rear of van interior.
p. Power Inlet Assembly (M129A4 only)
Power inlet (2) is used to connect 110-volt external power source to semitrailer through power inlet access door.
Power inlet is located at left side rear of semitrailer.
q. Fan Assembly (M129A4 only)
Fan assembly (3), in conjunction with two vents on interior front wall of trailer, circulates air throughout interior
of semitrailer. Fan assembly has two air speeds.
r. Rear Platform (M129A4 only)
Used to gain access to interior of semitrailer. Platform (4) is attached to body by hinges and is raised and lowered
manually. Platform can be stowed upright against rear van body. Because of its weight, two persons are required
to raise/lower platform.
s. Electrical Input Receptacles
Two electrical input receptacles are located on the resistor box (XM1063) or voltage converter box (M129A4)
(5) at the exterior wall of the van. The 24-volt, 12-pin receptacle (6) is located to the right of the 12-volt, 7-pin
receptacle (7). XM1063 has a system of resistors in the resistor box that make it possible to use a towing vehicle
with either a 12-volt or 24-volt electrical system. M129A4 has solid state components in the voltage converter
box that make it possible to use a towing vehicle with either a 12-volt or 24-volt electrical system. M129A4
Registration Numbers NX0RKB and Subsequent LED lighting system voltage converter boxes no longer
contain fuses/ circuit breakers.