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Check the grab and carrier
Please check every necessary parts of the grab and the
carrier before starting operation. Referring to check points in
the manuals of the grab and carrier, check any damages,
breakage, crack, wear, deformation, connections, oil leak
and the safety related points.
For the grab, check carefully crack in the welded parts of
grab body, bolt and nut, pin, oil leak on the cylinder and
hose. Do not operate in case any damages or failure is
found until it is fixed. In case such trouble is found, put the
warning tag in the driver cab. It is good to let the same
person remove the tag after trouble shooting. (Figure 5)
Figure 5
Check safety in work site
Check if the building has a sufficient load capacity to bear the weight of the carrier in case it is necessary to
work on the roof or ceiling of the building.
1.3. Safety information for operating the grab
WARNING!
The following instructions are on safety in operation with grab. Read, understand and observe
the instructions. More information is provided in page 23,
Never operate in unallowed applications
Operation in applications not allowed by the manufacturer must not be carried out. Refer to page 23,
” for such applications.
Operate from the top downwards
Heavy broken concrete elements may fall down and damage the hydraulic grab and the carrier, therefore,
columns and supports must be broken from the top downwards.
Never use for hammering or ramming
Hammering or ramming with the grab may cause serious damage to the grab.
Prepare a escape for the carrier
Never fail to prepare a escape for the carrier for emergency. The direction needs to be opposite to the object
of crushing and it should be straight way.
Stop operation on finding uncertainties
Never fail to stop the operation if an uncertain noise or vibration is detected during the operation and check
the condition of the carrier and the grab.
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