OPERATING INSTRUCTIONS
TM-CHAIN BLOCKS
B07725-G
EN 06.2022
9 | 12
6.4
Hooks
Check hooks for wear and any damage. Take hooks out of service if the hook opening has widened
by more than 10 % or the shank height in the hook bottom reduced by more than 5 % compared
to a new hook.
If a safety latch no longer cuts in at the tip of the hook due to a widening of the hook, the entire
chain block has been massively overloaded and must be disposed of.
The use of load-bearing components of such a chain block as spare parts is not permitted.
Check that the hooks rotate freely and easily without obstruction.
Check the function of the safety latches.
6.5
Slipping clutch
If a chain block is used as intended, the slipping clutch is not set or adjusted. It can only be
replaced as a complete unit and must be subsequently examined by expert staff once installed.
7
MAINTENANCE AND REPAIR
7.1
General
Maintenance work may only be carried out by competent persons.
A necessary repair can be only made by an authorized service centre. In such a case, please
contact the service address.
7.2
Replacement of the load chain
Unload the chain block and loosen the chain bolt on the hook tackle or suspension console in the
event of a twin-strand reeving as well as on the chain end fitting. Allow the used load chain to run
through the chain block in the lifting or lowering device and, if necessary, pull the load chain
through the top and bottom block. Assemble the new load chain according to the information
provided in Chapter 5.
7.3
Replacement of the load hook / hook tackle (single-strand)
The hook tackle can only be replaced as a unit. Unload the chain block and open the nut belonging
to the chain bolt. Pull the chain bolt out of the hook tackle console. Insert the load chain end into
the console of the new hook tackle and push a new chain bolt into the drill hole of the console and
through the last load chain link. Secure the chain bolt with a new self-locking nut.
7.4
Replacement of the load hook / bottom block (twin-strand)
Unload the chain block and open the screw belonging to the bottom block console. Open one half
of the bottom block console and remove the hook. Correctly insert the new hook complete with
its retainer into the bottom block console. Close the bottom block console with its half. In doing
so, ensure that the hook retainer and the sprocket bolts are located in the intended retainers.
Re-insert the screws and secure them with new self-locking nuts.
