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10.2 Regular maintenance and care
•
The regular 3-month maintenance may only be carried out by an expert with
competent knowledge of working with crane scales. Thereby the national
regulations for prevention of accidents as well as the working, operation and
safety regulations of the owner-operator.
•
To check the dimensions only use suitable test devices.
•
The regular 12-month maintenance must only be carried out by trained
specialized staff (KERN customer service).
•
The results of the maintenance must be written down in the checklist (chap.
10.4).
•
The additional results of the extended maintenance have to be entered in the
checklist (chapter 11.1).
•
The replaced spare parts also must be entered, (chapter 11.2)
10.3 Regular maintenance
Initial start-up,
every 3 months or
definitely after
12 500 weighing
processes
Every 12 months or
in any case after
50 000 weighings
Every 5 years or
anyway after 250
000 weighings
Every 10 years or
anyway after
500 000 weighings
Note
During the revision for wear and tear please refer to the following drawings.
HFT-BA-e-1812
•
Check all dimensions, see checklist chap. 10.4
•
Check the shackle or the eyelet for wear and tear, such as e.g.
plastic deformation, mechanical damage (unevenness), notches,
striation, cracks, corrosion, thread damage and torsions.
•
Check the application of the safety bracket on the hook, moreover
check for fault and correct function
•
For balances of big construction size: Check that the split pin and
the nut on the shackle are not loose
If a dimension exceeds the admitted deviation from the original
dimension (see checklist, chap. 10.4) or if other discrepancies have
been found, the balance must be repaired at once by trained
specialized staff (KERN customer service). Never do repair it by
yourself!
Take balance out of operation immediately!
All repairs and spare parts must be documented by the service partner
(see list, chap. 11.2).
•
If the enhanced maintenance has to be carried out by trained staff
(KERN customer service). At this general revision all load carrying
parts must be checked for gaps with magnetic powder
•
All load carrying parts have to be exchanged by trained specialized
staff (KERN customer service).
•
Replace the crane balance entirely
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