LOAD KING 35-127 M, Operator'S Manual, Page: 94 / 216

94
35-127 M
Inspection
- Operational planning:
- Higher floor loading than provided for,
- difficult handling of the additional test load,
- ban on carrying out any overload tests on-site in some fields of industry
(e�g� petrochemical plants)�
- Operational safety:
- Anyone in the vicinity of the crane must be warned of the test procedure and
- must leave the area during the test�
Risk of accidents due to damage to load-bearing parts.
After an overload test, carry out extensive investigations to ensure the intactness of
the load-bearing components�
Damage to load-bearing parts can occur due to cracks caused by overload and/or fatigue; such defects
are not exposed by an overload test� For this reason, an overload test can give owners and operators a
false sense of security�
To ensure the intactness of load-bearing components, extensive investigations are recommended after
an overload test and before carrying out hoist work� Such an investigation consists of a visual inspection
combined with function tests (including the safety equipment) and can necessitate non-destructive
inspections such as magnetic particle or ultrasonic inspections�
Any malfunction or irregularity discovered during the inspection must be evaluated by an expert� This
person must determine whether the movement can be carried out safely or whether immediate repair/
modification is required�
Recommendations of Load King with Regard to Load Tests
Checking Assembly
Checking the correct crane assembly (e�g� after reconfiguration) must include:
- a visual inspection of all assembled parts on the ground before erecting the boom,
- a function check of the crane without or with limited load including:
• any movements important for the job
• an inspection of all limit switches (among others, the hoist limit switches),
- an inspection to ensure the assembly has been carried out in accordance with the assembly
instructions�
Load Test Factors
If load tests are required by laws mandating checking the assembly of the crane, 100% of the permitted
load of the crane in the given configuration must not be exceeded�
This applies to all
Load King
mobile cranes for the static and dynamic load tests� A period of 5 minutes
is sufficient for static tests�