15 – 20 Repair Manual RRE140/160/180/200/250 © BT
Mast/Lift system 7000
Main lift chain system (7120)
T-code Valid from serial number Date Publication No.
815, 816 6051502 2008-08-21 261828-040
Damaged plates
If a plate has broken on the chain, this may be due to overloading or cor-
rosion.
The chain should be replaced.
Damaged bolts
It can be difficult to determine whether a bolt has broken. A broken bolt
can manifest itself as bolt rotation and/or a loose outer plate.
The chain should be replaced.
Dirty chain
If a chain is very dirty the recommendation in the first instance is that it
should be replaced. It can also be removed and cleaned - see "Clean
-
ing the chain".
15.2.3 Lubricating the chain
Mineral and synthetic oils can be used to relubricate Rexnord chains.
IMPORTANT!
Lubricant must not contain substances such as molybdenum disul-
phide, PTFE, or similar.
A lift chain must be released from the weight of the fork carriage (sus-
pended) when lubricated.
The chains are sprayed with lubricant. Note the entire chain must be
lubricated, including the fixing bolts. It is particularly important that the
part of the chain that runs over the chain wheel is well lubricated.
The lubricant must meet the viscosity requirements for the tempera-
tures in question - see "1.1 Oil and grease specifications" on page 1.
IMPORTANT!
Do not use a special rust protective agent to prevent rust attack on
the lift chains.
These agents impair lubrication of the chains. Regular lubrication is
the best way of preventing rust attack.
To Next Page
Loading...
