Shop van body rear interior panel.
a. The semitrailer has provisions for 24 volts DC and 115 volts AC power.
The receptacles are located on the center front and right front, respectively, of
the trailer. The van contains both 24-volt and 115-volt lighting systems with
b. The M146 has a curbside personnel door and two rear entrance doors.
windows are of the same construction as the M109 van with blackout shades.
c. Foldout 3 shows the interior of the M146 semitrailer shop van, with the
basic set and No 1 supplemental set installed in accordance with TB ORD 444-22.
4. GENERATOR TRAILERS. Each shop van requires 115 volts to operate; however,
the total power requirement of each shop set is different. Therefore these
generator trailer configurations are used.
a. The basic set installed into the M109, as required by TB 9-4910-337-
30/1, utilizes one 1-1/2-ton, 2-wheeled, cargo trailer. Figure 7 shows the
equipment that is installed on the trailer. There are two generators: a 10KW to
supply 115 volts AC and a 2KW to supply 12 volts DC-for charging batteries. There
is also a mixing tank for making electrolyte for batteries.
b. The No 2 supplemental set installed into the M109, as required by TB ORD
444-18, utilizes the 3-1/2-ton, M353, trailer chassis. This trailer carries the
60KW generator to supply 3-phase voltage for operation of the generator test stand
and other components.
c. The No 1 supplemental and basic sets installed into the M146 semitrailer
shop van, as required by TB ORD 444-22, utilizes a 2-1/2-ton, 2-wheeled generator
trailer chassis M200A1. Figure 8 shows the 60KW 3-phase generator mounted on the
trailer chassis. The 2KW, 12-volt DC generator is mounted on the floor on the left
side at the rear of the semitrailer (foldout 3).
OS 010, 9-P6