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|  MIL-T-52843C
4.6.2.19 Maintenance. Test the forklift in accordance with test
method No. 20. Nonconformance to 3.7, as applicable, shall constitute
failure of this test.
4.6.2.20 Air transportability. Determine the height, width, and
axle loadings of the forklift truck in the air transportable
configuration. Remove and reassemble the counterweight, cab, ROPS,
FOPS, exhaust pipe/muffler, forks, and carriage as required. Perform
examination and tests required by MIL-A-8421. Nonconformance to the
requirements of 3.1.3.2 shall constitute failure of this test.
4.6.2.21 Hydraulic system.
4.6.2.21.1 Pump inlet pressure. Test each pump in accordance with
test method No. 21. Pressure differential between atmospheric
pressure and the vacuum in the line in excess of that specified in
3.11.1.2 and 3.12.1.4 shall constitute failure of this test.
4.6.2.21.2 Hydraulic filter and filter assembly Test the
.
hydraulic filter in accordance with test method No. 22 and either
test to MIL-F-52723 or provide certification with supporting test
data. Nonconformance to 3.12.3.1, 3.12.3.2, or 3,12.3.3, as
applicable, shall constitute failure of this test.
4.6.2.21.3 Hydraulic system roll-off cleanliness Test each truck
.
in accordance with test method No. 23. Continue cleanup procedure
until the average of three consecutive counts conform to 3.12.8.
4.6.2.21.4 Hydraulic cylinders. Test each cylinder in accordance
with test method No. 24. Nonconformance to 3.12.7 shall constitute
failure of this test.
4.6.2.21.5 Pump contaminant tolerance. Either test the pump(s) in
accordance with procedure set up in NFPA Recommended Standard
T.3.9.18-1976 or provide certification with supporting data. Report
contamination analysis data in accordance with ANSI Standard B93.30.
4.6.2.21.6 Hydraulic fittings. Test the truck in accordance with
test method No. 25. The contractor shall furnish a complete set of
hose assemblies with reusable fittings for conduct of this test.
Nonconformance to 3.12.1.1 shall constitute failure of this test.
4.6.2.21.7 Hydraulic control valves. Either test the hydraulic
control valves in accordance with 3.12.6 or provide certification
with supporting data. Nonconformance with 3.12.6 shall constitute
failure of this test.
4.6.2.22 External leakage. An external leakage test shall be
conducted at the conclusion of the schedule of test indicated in
table IV. Observe and record accumulated leakage at practical
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