shall be provided.
A trailer
per square foot) of floor area for
receptacle, conforming to MS
class
F
and
G
bodies.
75021-2, with cover assembly,
Longitudinals and crossmembers
shall be provided in an
shall be welded for not less than 50
accessible location on the rear
percent of the contact edges to the
end of the vehicle.
A 12-
body floor. Longitudinals shall be
conductor truck tractor cable,
welded for not less than 50 percent
not less than 3048 mm (10 ft)
of contact edges with the body
long with both ends of cable
ends.
Crossmembers shall be
equipped
with
connectors
welded for not less than 50 percent
conforming to MS 75020-1 and
at the contract edges with the body
MS 75020-2, shall be furnished.
side rub rails.
The cable assembly shall be
stowed in the vehicle. The 24-
volt, service lighting circuit shall
be connected through the
VES
VERTICAL EXHAUST SYSTEM
appropriate lighting controls to
When code VES is specified, a
terminals B, D, E, J and L of MS
vertical exhaust pipe shall be
75021-2. On Type II tractors, a
provided. The vertical exhaust
pogo stick type hose tender
pipe shall be equipped with a
shall be provided behind the cab
heat shield and turnout tail pipe
to accommodate and secure the
or hinged rain cap.
Vertical
24-volt cable.
exhaust pipe is not available on
CONVERTER TYPE 24-VOLT
gasoline engine driven vehicles.
SYSTEM.
VMS
VERTICAL SPARE TIRE
The 12- to 24-volt converter(s)
CARRIER
shall operate from the 12-volt
When code VMS is specified, a
battery (see 3.4.2.6).
The
vertical carrier for a spare tire
output capacity shall be not less
assembly shall be provided.
than 24 amperes. More than
The carrier shall be mounted
one converter may be provided
behind the cab above the
to furnish a total of 24 amperes.
chassis frame for Type II
ALTERNATOR TYPE 24-VOLT
tractors or Type IV dumps.
SYSTEM.
When code VMS is specified, for
The alternator type 24-volt
Type III stakes, a vertical carrier
system shall be separate from
for a spare tire assembly shall
the 12-volt vehicle lighting and
be provided. The carrier shall
ignition system and shall
be mounted behind the cab on
include:
the front rack or bulkhead.
(a) Nominal 24-volt alternator
with not less than 25
VOL
24 VOLT TRAILER SYS
amperes rated capacity
When code VOL is specified, an
and capable of providing
auxiliary 24-volt system, with a
not less than 7 amperes dc
trailer receptacle assembly, shall
output at normal engine
be provided. Either a converter
idle speed.
type (see below) or an alternator
(b) Two 12-volt batteries with a
type (see below) system,
combined capacity of at
meeting specified requirements,
Federal Standard 807M
Page 56 of 65
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