Tadano ATF 130G-5, Translation Of The Original Operating Manual

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5 Raise boom slowly 14 Dump load
6 Lower boom slowly 15 Slew load in this direction
7 Raise boom and hold load 16 Stop everything
8 Lower boom and hold load 17 Stop! End of work movement
9 Extend boom
Grounding
Both the mobile crane and its load may under certain circumstance become electrically charged
during operation. This can occur, for example, while working near strong transmitters or high fre‐
quency systems.
Electric charging is particularly likely to occur if the support plates of the mobile crane consist of
insulating material (plastic) or support plates made of non-insulation material (steel) are supported
by insulating materials (e.g. square timbers).
The load may also become electrically charged (e.g. when using lifting gear made from non-con‐
ducting materials or synthetic coils).
Therefore, it may be necessary to ground the mobile crane and its load. To do this, a conducting
connection must be established between the part to be grounded (mobile crane/load) and the
ground.
Grounding the Mobile Crane
DANGER
Danger to life from electric shock!
There is a danger of electric shock when the mobile crane is not proper‐
ly grounded.
1. Avoid electrostatic charging of the mobile crane.
2. Ground the mobile crane properly.
The mobile crane must be grounded before beginning work:
▪ near high-frequency systems
▪ near transmitters (radio transmitters, television and radio transmitters etc),
To ground the mobile crane, the following are necessary:
▪ if not positioned near the mobile crane, a stable, electrically conducting pole approx. 1 m (3.3
ft) long, which is driven into the ground,
▪ a sufficiently long, electrically conducting cable with at least 16 mm
2
(0.024 in
2
) diameter,
▪ Screw clamps, or nuts and disks for fastening the parts to each other.
Procedure:
1. Drive the grounding rod at least 0.7 m (2.3 foot) into the ground.
2. In order to make the ground around the ground rod more conductive, it must be dampened
well.
The ground resistance depends on the contact surface of the grounding rod and the condition
of the ground material.
2 General safety instructions
ATF 130G-5 2146097
2014-09
53