4.3
FIRST PRODUCTION VEHICLE
in accordance with MIL-HDBK-1223 has
INSPECTION.
been treated.
When specified, the first vehicle produced
under the contract shall be inspected by
4.3.4
TYPE VIII REFRIGERATION UNIT
TESTS.
the contractor at his plant under the
To determine conformance to 3.5.8.1, the
direction and in the presence of
following tests shall be conducted.
Government representatives.
The
Certification from the body supplier may
purpose of the inspection shall be to
be accepted. Certification shall be based
determine vehicle conformance to the
on test data or calculations.
contract.
Acceptance of the first
production vehicle shall not constitute a
4.3.4.1
COOLING TEST.
waiver by the Government of its rights
The entire body, without payload and with
under the provisions of the contract.
the rear doors open, shall be soaked for
four hours in an ambient air temperature
4.3.1
VEHICLE WEIGHT.
of not less than 38°C (100°F). The
The first production vehicle shall be
cooling capability of the van shall then be
weighed to determine the curb weight and
determined to verify conformance to
distribution of the curb weight on front and
3.5.8.1.
The vehicle body shall be
rear axles. The total imposed loads on
continuously exposed to the 38°C (100°F)
front and rear axles shall be computed by
ambient air temperature during the test.
the contractor and verified by the
Government, using the curb weight, the
4.3.4.2
HEATING TEST.
operator and passenger weight at each
When a diesel powered refrigeration unit
seating position at 80 kg (175 pounds)
is required, (see 3.5.8.3.2), the vehicle,
each and the payload required to provide
without payload, shall be exposed for four
the specified GVW.
The calculated
hours to the ambient air temperature at
imposed loads on the front and rear axles
the time of the test. The body heating
shall be compared to the suspension, axle
system shall be operated and the inside
and tire load capacity ratings to determine
temperature shall be raised until a
if these components are of adequate
temperature differential between the
capacity
to
meet
contractual
inside and outside air reaches 33°C
requirements.
(60°F).
With the heating system
operating, the vehicle shall be driven for
4.3.2
ROAD TEST.
30 minutes at a road speed of 88 km/h
The first production vehicle shall be road
(55 mph) to test the capability of the
tested by the contractor without payload.
system to maintain the 33°C (60°F)
The road test shall be for not less than 16
temperature differential.
km (10 miles) at speeds up to 88 km/h (55
mph).
4.4
TRANSPORTABILITY
When vehicles covered by this Standard
4.3.3
TRUCK BODY TREATMENT AND
are to be transported by Air (option ATR),
PAINTING.
Highway (option HTR), Sea (option MTR)
A certification regarding the body
or Rail (option RTR) by the using agency,
cleaning, treating, prime painting and salt
the following sequence of events shall
spray resistance testing, as required by
occur: The agency is to send a written
MIL-HDBK-1223, shall be made to the
certification
request
containing
a
Government representatives at the first
description of the physical characteristics
production vehicle inspection.
The
of the vehicle to The Air Transportability
manufacturer's records shall be available
Test Loading Agency (ATTLA) when Air
to verify that all wood requiring treatment
Transportability (option ATR) is requested
Page 75 of 79
to verify that this 7 4Y
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