M A E D A Crawler Crane 6.3 LEGAL INSPECTION
5/2020 CC1908S-1 6-7
LEGAL INSPECTION
INSPECTION PRECAUTIONS
1.
Inspect safety devices to check that there are no
abnormalities.
2.
Inspect the hook block and other hoisting
accessories for any abnormalities.
3.
Inspect the winch wire rope end and wire clip for
damage.
4.
Replace the wire rope promptly if it is damaged.
5.
Inspect the hydraulic hoses for oil leaks and
surface wear damage. Replace the hose if
surface damage is found.
6.
Inspect the boom and other structural parts for
cracking and deformation.
7.
Inspect the mounting bolts and joints for
looseness and detachment.
8.
Check that the crane operates and stops
correctly when boom telescoping, derricking, and
slewing.
If any faults are discovered during inspection, contact
us or our sales service agency.
PARTS REPLACEMEMT
PERIODIC REPLACEMENT
OF CRITICAL PARTS
To assure prolonged and safe use of the machine, be
sure to periodically replace the parts listed in the
critical parts list, especially those related to safety and
fire.
These parts are prone to degradation over time and
abrasion. As the extent of degradation and
deterioration cannot be easily determined during
periodic maintenance, they must be replaced at the
prescribed intervals even if no abnormality is found in
order to maintain correct functioning at all times.
If any abnormality is found in any of these parts, they
must be replaced even if it is before the
predetermined time for replacement.
In the case of hoses, if any signs of degradation are
detected, such as deformation or cracking of the
clamps, the clamps must be replaced at the same
time.
Also conduct the periodic inspections indicated in the
following table for hydraulic hoses other than the
periodic replacement part. If any abnormality is found,
retighten or replace.
• When replacing hoses, also replace the O-rings
and gaskets at the same time.
• Contact us or our sales service agency for the
replacement of critical parts.
• When conducting the periodic inspection indicated
in the following table, also inspect the hydraulic
hoses and fuel hoses.
Inspection type Check items
Daily inspection
(before starting
work)
Oil leakage from the joints and
caulking of fuel hoses and
hydraulic hoses
Monthly
Inspection
Oil leakage from the joints and
caulking of fuel hoses and
hydraulic hoses
Damage to fuel hoses and
hydraulic hoses (cracking,
abrasion, and tearing)
Specified user
inspection
(annual
inspection)
Oil leakage from the joints and
caulking of fuel hoses and
hydraulic hoses
Interference, collapsing, ageing,
twisting, and damage (cracking,
abrasion, and tearing) of fuel
hoses and hydraulic hoses
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