IMO(CE) DKEX KTEX

Maintenance
|
11
8 Maintenance
Caution
Always read the safety information before maintenance or service.
Repair or replacement of components is not permitted on DKEX/KTEX. For other questions about the fan, contact techni-
cal support. Cleaning interval should be in proportion to how fast the impeller becomes dirty. Disassembly of the impel-
ler is not allowed.
Motors are completely or partly covered by antistatic painting or coating, which is able to derivate electric charges. A
repaint may lead to dangerous static charges and is therefore not allowed
Check that:
• The installation is accessible for cleaning and inspection work.
• No Ex atmosphere is present before switching of the fan.
• That the fan is not energized and the current circuit is interrupted and secured against restart.
• The impeller has stopped before any maintenance/cleaning begins.
• Applicable health and safety regulations are followed (EN50 110, IEC 364).
Danger
Cleaning with fluids when the fan is connected to voltage can cause an electric shock – danger to life!
• Under no circumstances may a high pressure cleaner or water jet be used.
• No aggressive solvents may be used as cleaning agents
• The cleaning should be carried out in the air flow and in the in and outlet area.
• Loose screws must be attached
• If the motor protection has tripped, check that the fan is not blocked. Contact the manufacturer if the fan does not
start after you have checked and reset motor protection.
• After cleaning the fan must run for 30 min. at 80–100 % of it’s rated voltage to fully dry out. This allows that any
water that has entered to evaporate.
After maintenance or servicing, check that:
• There is no abnormal noise and that the operation is without vibrations.
• The impeller balance weights have not been moved and that the impeller blades have not been bent.
141815 | A005