T039880E
Elevating the Boom Controls 2
1
OFF
ON
AML
REAR
AML
50℃
JIB LOCK
85℃
ON
INT
FREE
UEL
3 H
F
L
T30432
1. Boom elevating control pedal 2. Slow elevation stop switch
3.Boom elevating control lever
Raising and Lowering the Boom
WARNING Moving the control levers abruptly is dangerous because it causes the load to bounce and swing. Be sure to operate the levers slowly and carefully. The machine is not automatically stopped even if the boom is elevated to raise a dangerously heavy load clear of the ground. An overloaded machine could overturn or be damaged. Use only the hoist-up operation to raise the load clear of the ground. When the boom is lowered, the working radius increases. Be alert to any sign of overloading when lowering the boom. Do not try to pull the load inward by raising the boom. This practice can damage the crane, leading to an accident.
DANGER Do not stick your hand or head out of the window during crane operation. Serious injury or death can result from this practice.
Elevating the Boom
78
Elevating the Boom
