M A E D A Mini-Crawler Crane Section 5 – SEARCHER HOOK INSPECTION AND MAINTENANCE
1/2019 MC285C-3 5-75
Pre-Start – Before Starting Engine
Check the following in this section without starting
the engine and before starting work every day.
E-Boom, Frame and Hook
• Check each part of the E-Boom, frame and
Hook for cracks, excessive deformation and
contamination etc. In addition, check bolts nuts
and pins for any looseness, drop and damage
etc. If you find any abnormality, repair.
Check hook for deformation, abnormal noise
from bearing and correct function of wire rope
latch (1).
Fig. 5-163
Greasing
• Wipe off and clean old grease from contact point
(3) of shackle (2) and E-boom hole, and contact
point (4) of hook (1) and shackle (2), then apply
new lithium grease.
Fig. 5-164
Searcher Hook Fix Bolts
DANGER! If any damage is found on searcher
hook fixing bolts, please exchange for new
one’s right away.
Breakage of bolts will cause the searcher
hook to fall off.
• Check if bolts used are the designated type.
Also check if there are cracks, damage,
squashing, heavy dirt, or rust on bolt.
If any abnormality is found, change the bolt for a
new one even it is earlier than expected bolt life.
Position Pin and Lynch Pin
• Check if position pin is surely secured with lynch
pin.
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