Mini-Crawler Crane M A E D A Section 4 – SEARCHER HOOK SAFETY PRECAUTIONS
1/2019 MC405C-3 4-139
SEARCHER HOOK SAFETY
PRECAUTIONS
NOTICE: For more information on precautions
not described here, see "Section 2 SAFETY."
Handling Precautions
Moment Limiter Settings Check
When using 850 kg searcher hook, confirm that
the moment limiter is set to the following wire
falls/option mode and searcher hook position:
"850 kg searcher hook mode."
If the crane is operated in a mode other than
850 kg searcher hook mode, the moment limiter
will not operate correctly, posing risk of machine
damage, toppling, or other serious accidents.
Precautions When Attaching/Removing
Main Unit or Altering Position
• Be sure to tighten the searcher hook mounting
bolts using the specified torque to keep the
searcher hook from falling when it is being
attached.
• Keep fingers out of the pin holes at all times.
• The position pins must always be secured
using lynch pins. Serious accidents may result
if the position pins become detached during
operations.
Operating Precautions
Precautions Using Boom Raising
Enable Switch
Use the boom raising enable switch only in
850 kg searcher hook mode.
In contrast to regular crane operations, if the
crane is overloaded in 850 kg searcher hook
mode, the operation will stop automatically. Use
the boom raising enable switch only when the
boom has stopped automatically after entering
the overload area while being lowered or
extended. Do not use this switch in normal
situations to lift loads off the ground.
Serious accidents such as machine damage or
toppling may occur if you use the boom raising
enable switch to lift loads off the ground.
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