M
AINTENANCE
8.20. Replace chain
WARNING
Danger from chain fracture
The chain is subjected to impermissible stresses if
the chain is twisted.
I
Do not twist the chain!
NOTICE
JDN chains are matched in close tolerances to
the sprocket. In order to ensure an optimum func-
tion of the chain and in order to prevent dangers,
only genuine JDN chains may be installed.
NOTICE
If the chain end link of the load chain is positioned
incorrectly, it must be removed. The following
chain link will then be positioned correctly.
The spare parts list contains information about
torques and other representations of the indi-
vidual components.
1. Loosen the chain from the dead end chain
mount
(9)
.
2. Remove components on the idle
(1)-(3)
:
a) Loosen the clamp.
b) Remove the components
(1)-(3)
from the
chain.
3. Loosen the chain from the load chain attach-
ment
(5)
.
4. Attach the new chain to the end link of the
load section of the old chain after aligning the
welds and the first chain link by means of an
open chain link. The welds of the old and new
chain must have the same orientation.
5. Switch
PROFI 16 TI
to Lifting and run the new
chain through the bottom block and drive
chain sprocket. After it exits, take the old
chain and open chain link from the new chain.
6. Align the chain and fasten the chain end link
(5)
by means of the chain end link bolt (po-
sition of the weld must align with that of the
following links). If necessary, the last chain
link must also be separated.
7. Mount the components on the idle chain:
a) Push the buffer disc with edge
(3)
(edge
encloses the buffer), new buffer
(2)
and
buffer disc without edge onto the chain.
b) Insert the 10th chain link into the chain
pocket of the clamp sleeve
(1)
(chain
pocket away from the hoist body, facing
outward) and secure with bolted connec-
tion or dowel pin.
c) Fasten the chain end link in the dead end
chain mount.
8. The replacement of the chain for a new chain
is to be entered in the test book.
Figure 21: Replace chain
Doc.-No.: VA049318-20-OM-EN-0319-64-6
Page
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