ANTI-TWO BLOCK
Do NOT permit the lower load block or hook assembly to contact the upper load block or boom
point sheave assembly. This is two blocking. IMT telescoping cranes with a winch are equipped
with an anti-two blocking device, but the crane operator must avoid two-blocking and must not
rely on the device alone.
DUTY CYCLES
This electric crane operates using a power unit with a maximum duty cycle of 5 minutes. See
the technical specifications for pump performance charts and operating intervals.
EXTENSION SEQUENCE
Always extend the hydraulic extensions first, followed by the manual extensions. When
retracting, retract the manual extensions prior to the hydraulic extensions.
OVERLOAD PROTECTION SYSTEM (ELLS)
IMT cranes are equipped with an excess load limitation system (ELLS), or overload protection
system. In an overload condition, no function will operate which results in an increase in
operating radius. However, the same function may be operated in the opposite direction if it
results in decreased operating radius. Note that the overload protection system is not sensitive
to vehicle stability -- it is still possible to cause vehicle instability. The operator cannot substitute
the overload protection system for good judgment. Refer to the capacity chart before attempting
to lift a load.
STABILITY
Use crane on solid, level surface with stabilizers properly extended, and keep vehicle level.
Reduce loads when operating on uneven ground. Keep personnel clear of moving stabilizers.
When you rotate the crane, the load may change from being supported by the stabilizers to the
vehicle suspension. Be cautious as you rotate the crane, because the springs on the carrier
vehicle will respond differently to the load than the tires will.
WINCH
Never use the winch to drag a load into position before lifting. This may sideload the crane or
stress the wire rope beyond safe limits. Equipment damage may result.
When using a winch, always keep the tip of the extension boom as close to the load as practical.
This will prevent the load from swinging out of control when using the rotation (swing) function.
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