Mast/Lift system 7000
Main lift chain system (7120)
Publication No. Date Valid from serial number T-code
261828-040 2008-08-21 6051502 815, 816
© BT Repair Manual RRE140/160/180/200/250 15 – 17
Stiff links
If it is not possible to pull the chain out to its normal position this can be
due to link rust or seizing.
The chain should be replaced.
Bolt rotation
Bolt rotation can be a phenomenon related to stiff links.
The fault is easy to see if the chain is compared with a new one.
The chain should be replaced.
.
Loose bolts
If a bolt is loose it will protrude from the side of the chain, and this is due
to a stiff link or bolt rotation.
The chain should be replaced.
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