11 PREVENTIVE AND CORRECTIVE MAINTENANCE
3BHS213401 E01 REV H ACS1000 AIR-COOLED USER MANUAL 181/184
6. Remove the fan by one of the following methods:
- Crane: Replace 3 of the fixing bolts with eye bolts, attach the lifting gear to the eye bolts
and then lift the fan off the cabinet.
Figure 11-17: Redundant fan unit – using a crane
- Height-adjustable platform: place the platform as close as possible to the fan and then
pull the fan onto the platform.
Figure 11-18: Redundant fan unit – using a platform
Note: If the fan housing is in good condition (no damages or bad corrosion), only replace
the fan motor and the impeller and re-use the fan housing.
7. Remove the mounting supports from the fan housing to be replaced and attach the
mounting supports to the new fan housing.
(1) 1/4”
(2) 17 mm
(3) 3 x M10 x 20
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