Thiele GRADES 8 User manual

MOUNTING INSTRUCTIONS
SKIP HOOKS
GRADES 8, 10 AND 12
THIELE GmbH & Co. KG # Change indicator
www.thiele.de | [e-mail] B11 20-A Replacement for -
© All rights reserved. EN 11.2021 1 | 3
Original in compliance with 2006/42/EC
1DESCRIPTION AND INTENDED USE
THIELE skip hooks with clevis are exclusively intended as end
fittings of permanently mounted sling chain assemblies on skip
loader vehicles for the attachment of corresponding containers
according to DIN 30720 or similar. In this case, every skip hook
embraces a corresponding container suspension pin.
THIELE skip hooks are designed as self-locking hooks based on
EN 1677-3, which lock automatically when loaded. The hook
opening is smaller than the contour of the securing collar at the
end of the suspension pin. This means that a skip hook cannot
slip off the suspension pin when it is locked.
The integrated clevis is used to attach a chain strand.
The following types are defined by the grade of the associated
chain (TWN = THIELE shop standard):
•Grade 8: TWN 13
•Grade 10: TWN 18
•Grade 12: TWN 24
Skip hooks may only be used:
•within the permissible working load limits,
•within the permissible temperature limits,
•by instructed and authorized persons.
THIELE skip hooks comply with the EC Machinery Directive and have an operating
coefficient of at least 4 in relation to the working load limit.
The skip hooks are marked with the nominal chain size and grade (NG = Nominal size),
manufacturer's mark and traceability code.
THIELE skip hooks are designed to withstand 20 000 dynamic load changes under
maximum load conditions. In the event of higher loads the working load limit must be
reduced.
The skip hooks are powder-coated in colour depending on the grade.
The skip hooks must not be used for transportation of persons or lashing.
2SAFETY NOTES
Risk of Injury!
Never walk or stay under lifted loads!
Make sure to use hoisting/
attachment means free from defects!
•Operators, fitters, and maintenance personnel must in particular observe the
operating instructions of the sling chain assemblies and loads to which the skip hooks
are mounted, documentations DGUV V 1, DGUV R 10 -017, DGUV I 20 -013 and
DGUV I 20 -021 issued by the German Employers’ Liability Insurance Association, as
well as standard specifications EN 818-6.
•In the Federal Republic of Germany, the operational safety ordinance (BetrSichV) has
to be implemented and the technical rule for industrial safety TRBS 1201, in
particular Annex 1, Chapter 2 "Special regulations for the use of working equipment
for lifting loads" must be observed.
•Outside the Federal Republic of Germany, the specific provisions issued locally in the
country where the items are used must also be observed.
•The directions given in these mounting instructions and specified documentations
relating to safety, assembly, operation, inspection, and maintenance must be made
available to the respective persons.
•Make sure these mounting instructions are available in a place near the product
during the time the equipment is used. Please contact the manufacturer if
replacements are needed. See also Chapter 10.
•When performing work make sure to wear your personal protective equipment!
•Improper assembly and use may cause personal injury and/or damage to property.
•Assembly and removal as well as inspection and maintenance must exclusively be
carried out by skilled and authorized persons.
•Structural changes (e.g. welding, bending) are impermissible. Never attempt to make
the opening of the skip hooks smaller by bending or welding in intermediate
elements.
•perators must carry out a visual inspection and, if necessary, a functional test of
the safety equipment before each use.
•Only fit sling chains of the same nominal size (nominal chain diameter - grade).
•Operation without a functioning safety lever is not permitted.
•Never put to use worn-out, bent or damaged skip hooks.
•Do not overload skip hooks or chains. Be sure to observe the working load limit of
the overall vehicle system.
•Do not use force when mounting/positioning the skip hooks.
•Self-locking hooks may only be put under load at the bottom of the hook and not at
the tip of the hook. Clamping of the load at the tip of the hook between the upper
and lower part is not permitted.
•Make sure the load can take the forces to be applied without suffering deformation.
•Lateral loads are not permitted due to the design. Skip hooks must be able to align
themselves in the direction of loading.
•Avoid sharp edges.
•Only lift loads that are freely movable and not attached or fastened.
•Do not start lifting before you have made sure the skip hooks are locked and the load
has been correctly attached.
•Make sure no one including you (operator) is in the way of the moving load (hazard
area).
•During lifting/hoisting make sure your hands or other body parts do not come into
contact with hoisting means. Only remove skip hooks manually (use your hands).
•Make sure that the sling chains are not twisted.
•Avoid impacts, e.g. due to abruptly lifting loads with hoisting means in slack
condition.
•Never move a suspended load over persons.
•Never cause suspended loads to swing.
•Always monitor a suspended load.
•Put the load only down in flat places/sites where it can be safely deposited.
•Take care for sufficient place for the personnel to move when choosing the route of
transportation and storage location. Danger to life and risk of injury by crushing
hazards.
•In the event of doubts about the use, inspection, maintenance or similar things
contact your safety officer or the manufacturer!
THIELE will not be responsible for damage caused through non-observance of the
instructions, rules, standards and notes indicated!
As regards grades 10 and 12 THIELE does not give its general approval to the assembly
of components stemming from different manufacturers!
Working under the influence of drugs, medications impairing the sense and/or
alcohol (including residual alcohol) is strictly forbidden!
3COMMISSIONING
Prior to using the components for the first time make sure that
•the components comply with the order and have not been damaged,
•test certificate and mounting instructions are at hand,
•markings correspond with what is specified in the documentation,
•inspection deadlines and the qualified persons for examinations are determined,
•visibility and functional testing are carried out and documented,
•documentations are safely kept in an orderly manner.
Dispose of the packing in an environmentally compatible way according to local rules.

MOUNTING INSTRUCTIONS
SKIP HOOKS
GRADES 8, 10 AND 12
THIELE GmbH & Co. KG # Change indicator
www.thiele.de | [e-mail] B11 20-A Replacement for -
© All rights reserved. EN 11.2021 2 | 3
4TECHNICAL DATA
5ASSEMBLY AND REMOVAL
General
Allways assemble/remove skip hooks in load-free condition!
Disassemble the parts in reverse order.
Use a suitable drift punch to drive the dowel pins out.
Suitable drift punches are available by Article No. Z03303.
Dowel pins must only be installed once.
A embly of clevi y tem
1. Remove load bolt and dowel pin.
2. Place end of chain leg between the lateral clevis
elements.
3. Push pin from the side fully into the clevis and
through the last chain link of the leg.
4. Drive dowel pin fully in (must not project) to
secure the pin. The slot must face away from
the pin.
5. Check the chain can move freely.
A embly of afety y tem (only for replacement)
1. Position the safety lever with the leg spring in the closed position of the hook and
insert an auxiliary bolt (Ø < 8 mm, length > 50 mm) laterally into the holes for the
two dowel pins and the safety lever as well as through the spring coils.
2. First drive in the dowel pin 8 x 40 instead of the auxiliary bolt.
3. If the safety lever is then difficult to move, remove the dowel pin and knock it in
again in the reversed position.
4. Then drive the dowel pin 5 x 40 into the already mounted dowel pin, making sure
that the slots of the two dowel pins are opposite each other.
5. Check several times that the safety lever takes its locking position smoothly after
opening and closing the hook and that the hook cannot be opened.
6OPERATION
Normal u e
To place the skip hook on the suspension pin, press the safety lever down by hand
(preferably with the thumb), open the hook and slide the lower hook body over the
suspension pin. If the upper and lower parts of the hook are opened as far as they will
go, this position is held by spring force.
As soon as the lower hook body is correctly positioned, the hook is to be closed by a
turning movement, if necessary against the holding force of the spring of the upper
part.
Check that the skip hook is locked.
Due to the free length of the chain, the unloaded skip hooks rotate around the pins
away from the later loading direction due to their own weight.
When lifting the load, it must therefore be ensured that ALL skip hooks can align
themselves freely in their direction of loading and that the force is applied in the
longitudinal direction. Supporting on other components is not permitted. Make sure
that the possible swivelling movement does not cause the chain to twist in itself
under load.
The skip hooks must always be able to move freely on the suspension pins. Avoid any
bending stress on the skip hooks.
Temperature range
The temperature range of use depends on the grade according to the following table:
Type Grade Temperature range
TWN 13 8 -40 °C ≤ t ≤ 200 °C
TWN 18 10 -30 °C ≤ t ≤ 200 °C
TWN 24 12 -30 °C ≤ t ≤ 200 °C
After the skip hooks have heated up above the max. operating temperature, they may
no longer be put into operation.
Environmental influence
Skip hooks must not be used in environments where acids, aggressive or corrosive
chemicals or their fumes are present.
Hot-dip galvanizing or a galvanic treatment is prohibited as well.
Type
Nominal
size
(NG)
Article
no.
Working
load limit
1)
[t]
Dim.
E
[mm]
Colour Mass
[kg]
TWN 13 13-8 F335000 5,3 167 Rubinrot
3,35
TWN 13 16-8 F335300 8,0 165 Rubinrot
TWN 18 13-10 F335100 6,7 166 Ultramarinblau
TWN 24 13-12 F335200 8,0 165 Nachtblau
1) bserve the working load limit of the overall vehicle system!
1.
2.
3.

MOUNTING INSTRUCTIONS
SKIP HOOKS
GRADES 8, 10 AND 12
THIELE GmbH & Co. KG # Change indicator
www.thiele.de | [e-mail] B11 20-A Replacement for -
© All rights reserved. EN 11.2021 3 | 3
7SPARE PARTS
Only use original THIELE spare parts.
Before installing spare parts, check that there is no further damage that would justify
taking the unit out of service!
Type
Nominal
size
(NG)
Spare part sets Spare part set
Pin for clevis +
dowel pin
Safety lever + spring +
dowel pin
TWN 13 13-8 F480131
F48332
TWN 13 16-8 F480161
TWN 18 13-10 F486741
TWN 24 13-12 F3138411
8INSPECTIONS, MAINTENANCE, DISPOSAL
General
Inspections and maintenance must be arranged for by the Owner!
Inspection intervals shall be determined by the Owner!
Inspections must be carried out and documented by competent persons regularly but
at least once a year, or more frequently if the skip hooks are used in heavy-duty service.
After three years at the latest they must additionally be examined for cracks. A load
test shall never be considered a substitute for this examination.
The results of the inspection shall be entered into a register (DGUV I 20 -062 or
DGUV I 20 -063) to be prepared at first use. The register will show characteristic data
as well as identity details.
Immediately stop using skip hooks that show the following defects:
•missing or illegible identification/marking,
•deformation, elongation or fractures,
•cuts, notches, cracks, incipient cracks, pinching,
•damaged parts (spring, pin, dowel pins),
•gap between upper and lower part too large,
•restricted freedom of movement between the upper and lower parts or the safety
lever,
•heating beyond permissible limits,
•severe corrosion,
•strong partial material removal,
•impaired or missing safety latch.
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).
Gap at the hook tip
When locked, the gap between the lower and upper part
of the hook (dimension s) must not exceed 1,5 mm.
A larger gap dimension indicates an overload.
Skip hooks with a too large gap dimension may no longer
be used.
Structural modifications to reduce the gap dimension are
not permitted.
In pection ervice
THIELE offers inspection, maintenance and repair services by trained and competent
personnel.
Maintenace
Maintenance work may only be carried out by qualified persons.
Minor notches and cracks may be eliminated by careful grinding observing the
maximum cross section reduction requirement of 10 % and avoid making more severe
cuts or scores.
All maintenance and repair activities are to be documented.
Di po al
Dispose of worn-out steel components and accessories for scrapping in accordance
with local regulations.
STORAGE
Skip hooks are to be stored in dry locations at temperatures ranging between
0 and +40 °C.
10 THIELE OPERATING AND MOUNTING INSTRUCTIONS
Current operating and mounting instructions are available as a PDF download on the
homepage.
11 IMPRINT
THIELE GmbH & Co. KG
Werkstrasse 3
58640 Iserlohn, Germany
Tel.: [phone]