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IW4/IW7 WB/WBV Maintenance, Error Codes
D1 0412BA1-GB04 29
4 Maintenance, Error Codes
4.1 Maintenance of the Roller Set
The roller set should be inspected and serviced every 200 operating hours or once every 12
months, whichever comes first. The inspection should include a thorough check of the anchoring
of the roller set as well as all fasteners and screws. The chain tension must be checked for the
first time 14 days after initial commissioning and afterwards inspected on a monthly basis.
Fig. 4-1: Maintenance points on the roller set
! Remove the lateral cover plates of the roller set. Now grease the chain (1) along its entire
length well with a universal type lubricant (turn the rollers manually)
! The chain should have a slack of about 5 mm in either direction. If the chain does not have
enough tension, loosen the attachment screws (a). Turn the tension screw (b) until proper
tension is achieved. When this is completed re-tighten the attachment screws (a) and check
the chain slack again.
! The sensor roller hinges (2) must be regularly greased or oiled every 200 operating hours or
at least once a year.