TM 5-3810-307-10
Suspension Lockout System Functional Check
a.
With crane standing on its wheels and the boom in the boom rest, start
engine from superstructure cab.
NOTE
The testing to be conducted according to this
procedure does not involve lifting any loads, but it
does involve moving the boom, and although the
boom can be raised without programming the LMI, it
cannot be lowered again without activating the by-
pass control if the programming action has not been
performed.
b.
Program LMI for any legitimate configuration.
c.
Raise boom out of boom rest approximately six inches (i.e., ensure that the
underside of the boom is clear from contact with the roller of the switch that
is located in the top of the boom rest).
d.
Extend the outrigger stabilizers to raise the crane, lifting the tires clear of
ground. As the crane is lifted, all wheels should remain in the same
position relative to fenders.
e.
Lower boom onto boom rest.
f.
Turn superstructure IGNITION switch to 0 (off) position to shut down engine.
WARNING
Suspended axles and wheels/tires can fall when
carrier IGNITION switch is actuated or crane is rotated.
Death or serious injury can result from being crushed
by a falling suspension. When on outriggers, ensure
areas beneath crane and adjacent to wheels are clear
of all personnel before swinging superstructure to the
rear or actuating carrier IGNITION switch.
g.
Turn carrier IGNITION switch to 1 (on) position (there is no need to start the
engine). When IGNITION switch is actuated, all four wheels should fall
to the full extension of the suspension lockout cylinders.
h.
Turn carrier IGNITION switch to 0 (off) position to shut off power.
i.
Start engine from superstructure cab.
j.
Retract outrigger stabilizers and set crane on its wheels.
k.
Raise boom out of boom rest approximately six inches (i.e., ensure that the
underside of the boom is clear from contact with the roller of the switch that
is located in the top of the boom rest).
l.
Extend the outrigger stabilizers to raise the crane, lifting tires clear of ground.
5-105
