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Page Title:
Test Method No.5 Fork Tilt - Tilt Speed Tilt Cylinder Cavitation |
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| MIL-T-52843C
APPENDIX
TEST METHOD NO. 5
FORK TILT - TILT SPEED - TILT CYLINDER CAVITATION
1.
TEST COURSE:
Level, flat surface.
2.
TEST APPARATUS:
a. Clinometer.
b. Stopwatch or electronic timer.
c. Hydraulic pressure gage capable of reading below atmospheric
pressure.
3.
TEST PROCEDURE:
a. Carrier tilt.
(1) Place forklift on level, flat surface, using clinometer
to insure forklift is level.
(2) With the fork heels resting on the ground, tilt the
carrier rearward and record the angle of the carrier from
vertical.
(3) With the forks raised to maximum lift height, tilt the
carrier forward and record the angle of the carrier from
vertical.
(4) Tilt the carrier to the point where the forks are level
on the ground. Operate the boom throughout the range of
vertical travel and record the range of angular variation
of the forks (carrier).
b. Tilt speed.
(1) Lift the rated load about midway between ground level and
maximum lift height.
(2) Tilt the load to the minimum sp cified forward tilt.
e
(3) Tilt the load from minimum specified forward tilt, to or
past minimum specified rearward tilt, and record the time
required.
(4) Repeat the procedure tilting from rearward to forward.
c. Tilt cylinder cavitation.
(1) Install the pressure gages to read hydraulic pressure on
both ends of the tilt cylinder.
(2) Lift the rated load midway between ground level and
maximum lift height.
72
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