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6. Step on the acceleration pedal (6) to the half of the full stroke
and operate the engine at medium speed.
7. Operate the boom derricking lever (4) slowly forward/backward
and move the derricking cylinder up/down until it reaches the
stroke end. Check if there is any abnormality with the operation.
If there is any abnormality, repair.
8. Operate the boom telescoping lever (2) slowly
forward/backward to extend/retract the boom until it reaches the
stroke end. Check if there is any abnormality with the operation.
If there is any abnormality, repair.
9. Operate the winch lever (3) slowly forward/backward to check if
the hook block is smoothly raised/lowered. Also check if the
hook block immediately stops and the winch drum does not wind
in mess when the winch lever returns to the “NEUTRAL” position.
If there is any abnormality, repair.
10. Operate the slewing lever (1) slowly forward/backward to
check if the crane smoothly slews clockwise and counter
clockwise for 360 degrees or more. Also check if the crane stops
immediately when the slewing lever returns to the “NEUTRAL”
position.
If there is any abnormality, repair.
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