Checking All Screw Connections; Fan Cover - Siemens SIMOTICS HV C Operating And Installation Instructions

● Immediately replace damaged components.
● If necessary, contact the Service Center (Page 111).
9.4.3

Checking all screw connections

● Check that all the bolts for attaching the bearing shields, bearing covers, gland plates, and
● Replace damaged bolts with identical bolts that are in perfect condition.
Incorrectly repairing the anti-condensation heating
If the anti-condensation heating is not correctly repaired, e.g. if unauthorized or untested
spare parts are used, this can result in explosions during operation in a potentially explosive
atmosphere. This can result in death, serious injury or material damage.
● Only appropriately trained specialists in the service center (Page 111) are authorized to
● Only use authorized and tested spare parts.
9.4.4

Fan cover

The fan cowl is fixed on the machine enclosure with screws.
Disassembly
1. Secure the fan cowl against falling before you start working.
2. Loosen the fixing screws that secure the fan cowl on the enclosure.
3. Observe existing retaining components and retain them for the reassembly.
Assembly
Proceed in the reverse order to assemble the fan cowl.
1. Position the fan cowl and tighten the fixing screws.
2. Ensure that the retaining components are undamaged and correctly installed.
SIMOTICS HV C 1NB1402-2AA84-4CA0-Z
Operating Instructions 06/2018
terminal boxes are present and properly tightened.
Stainless steel bolts
WARNING
repair anti-condensation heating systems. The anti-condensation heating must then be
subject to a routine test, which requires extensive specialist knowledge.
Maintenance
9.4 Corrective Maintenance
Bolt grade
A4-80
97