MIL-T-52864-SUP Trucks, Lift, Fork: Diesel-Engine-Driven, Pneumatic-Tired, 10,000, 15,000 and 20,000 Pound Capacity; General Specification for No S/S DocumentThis specification covers the general requirements for diesel-engine-driven pneumatic-tired depot forklift trucks used for handling cargo in and around warehouses, loading platform, and docks.

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MIL-T-52864D

TEST METHOD NO. 1

MAXIMUM FORK HEIGHT - FREE LIFT HEIGHT COLLAPSED MAST HEIGHT

1.  Test Course:

Level flat surface:

2.  Test Procedure:

a.        Measure the true vertical, distance from floor to uppermost projection of the upright assembly with mast in true vertical position. (This is the actual collapsed mast height.)

b.        Raise rated load in a horizontal position until the inner mast begins to exceed the specified collapsed mast height.

c.        Measure and record the true vertical distance to the top surface of the forks at the specified load center. (This is free lift height.)

d.        Adjust rated load to 12 inches, ±4 inches, above ground level and position load in true horizontal position.

e.        Attach a plumb bob to the rated load at the load center at the bottom and mark a reference point on the ground.

f.        Elevate the test load to the maximum height and check the reference point.        If necessary, reposition the mast so that the plumb bob is directly over the original reference point.

g.        Measure and record the true vertical distance from floor to the top surface of the forks.  (This is maximum fork height.)

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