OPERATING INSTRUCTIONS
CHAIN SLINGS GRADES 80 AND 100
THIELE GmbH & Co. KG
# Change indicator
www.thiele.de | [email protected]
B11082-C
replaces B11082-B
© All rights reserved.
US 01.2020
9 | 11
9.
IDENTIFICATION/MARKING
An identification tag must be attached to the chain sling
adjacent to the master link.
The identification tag must show
•
name or trademark of manufacturer
•
nominal chain size
•
grade
•
number of legs
•
rated load and corresponding sling angle
•
length/reach
•
individual identification/serial number
10.
INSPECTION, MAINTENANCE, DISPOSAL
10.1
General
Inspections and maintenance must be arranged by the owner!
Inspection intervals shall be determined by the owner!
Visual inspections must be regularly carried out and
documented by competent and trained persons, at least once a
year or more frequently if the chain slings are in heavy duty
service. After three years at the latest they must additionally
be examined for cracks. A load test is not a substitute for this
examination.
The results of the inspections shall be kept in a file that has to
be set up for each sling chain before first use. The register shall
show characteristic data of the chains and components as well
as identity details.
Immediately stop using chain slings that show the following
defects:
•
missing or illegible identification/marking,
•
deformation, elongation or fractures of chain links or
components,
•
cuts, notches, cracks, incipient cracks, pinching,
•
links heated beyond permissible limit,
•
severe corrosion,
•
pitch elongation of individual chain links by more than 5 %
each,
•
reduction of the average diameter of more than 10 % as
mean value of measurements taken perpendicularly
towards each other,
•
impaired or missing safety systems, for example if the
hook
s’
safety latch is defect,
•
widening of the hook opening by more than 10 % or if the
safe seating of the hook safety latch is no longer ensured
•
limited hinging capability of connecting links (e.g. halves get
stuck),
•
wear in excess of 10%, e.g. in the receiving area of the
connecting link halves or of the pin diameter,
•
missing or damaged pin locks or removal of preventing
guards
Cleaning (e.g. prior to inspections) must not take place by using
flames or methods that might cause hydrogen embrittlement
(e.g. pickling or immersion in acidic solutions).
The following chain gauges are available to be used during
chain inspections:
Nominal size
Article No.
Grade 80
F48856
15/64
#
Grade 100
F01690
5/16
Grade 100
F01691
3/8
Grade 100
F01692
1/2
Grade 100
F01693
5/8
Grade 100
F01694
10.2
Inspection Service
THIELE offers inspection, maintenance and repair services by
trained and competent personnel.
10.3
Maintenance and Repair
Maintenance and repair work must only be performed by
competent and trained persons.
Do not repair or replace individual chain links but replace
complete chain legs only.
If the safety latch of hooks does not engage properly with the
tip of the hook, probably not only the hook but also the
corresponding chain leg has been overloaded. In all such cases,
all items used in the respective leg must be replaced (chain,
shortening element, ring shackle etc.).
Minor notches and cracks may be eliminated by careful
grinding, observing the maximum cross section reduction
requirement of max. 10 % and avoid making more severe cuts
or scores.
Welded chain slings must exclusively be repaired by the
manufacturer.
All maintenance and repair activities must be documented
properly.
