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|  MIL-D-63303B(AR)
4.5 Quality conformance (acceptance) inspections. Acceptance
inspection shall be performed and shall be in accordance with 4.5.4.
4.5.1 Inspection lot formation. As applied to Government
inspection of units of product, the term "lot" shall be in
accordance with MIL-STD-105.
4.5.2 Break-in run. The dispenser shall be lubricated and
serviced prior to the break-in run which shall be performed on
smooth, level, hard-surfaced roads specified in TABLE I. The
dispenser shall be backed-up in reverse after the divisions as
specified in 3.5.1.5. The undulating portion (See Fig. 1) of the
test shall be accomplished twice in each direction at speeds "of five
and ten (5 and 10) mph (8.1 and 16.1 kmph) during division "a" and
between eleven and fourteen and one half (11 and 14.5) mph (17.7 and
23.4 kmph) during division "b".
4.5.2.1 Stopping. The dispenser with full payload, shall be
towed at twenty (20) mph (32 kmph) on dry smooth level hard surfaced
roads free of loose material, and, stopped within one hundred (100)
feet (30.5m) upon steady dispenser brake application (in prime mover
with air brake capability), to insure compliance with 3.5.1.4.2.
4.5.2.2 Road speed. To determine conformance to 3.5.1.6, the
dispenser shall meet the specified requirements.
To determine conformance to 3.5.1.7,
4.5.2.3 Trailinq ability.
when dispenser is coupled to the prime mover and operated it shall
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be observed for trailing ability.
4.5.2.4 Parking. The dispenser, with payload, shall be towed
to a smooth, dry, hard surface, free of loose material, which is
O
inclined at an angle of eleven degrees (ll ). When parked on this
inclined surface, the dispenser shall be capable of being held
stationary facing up or down, by the parking brake only.
NOTE: The dispenser/chassis braking system air reservoir must
be vented to release residual pressure. The dispenser towing
vehicle must not influence the dispenser during this test. Leveling
jacks may be used to stabilize, but not support, the dispenser.
4.5.2.5 Condition after run. After the break-in run, the
dispenser shall be inspected to determine conformance to 3.5.1.8
which shall include checking the complete suspension system.
4.5.2.6 Inertia brake application test. To determine
conformance to 3.5.1.4.3, back the prime mover and dispenser chassis
until the stroke of the inertia brake master cylinder causes the
wheels to lock. After a sustained rearward force is applied for ten
to twenty (10-20) seconds, the brakes will fully release, permitting
rearward movement of the dispenser chassis. Observation shall be
made to determine compliance with the applicable requirement.
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