
Repair | 12
Operating instructions CMVpro 125-400 ATEX | Version 1-en
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12.3
Spare parts and wear parts
DANGER
Risk of injury due to impeller explosion
Serious injuries due to debris being launched out.
▪ Prohibited spare parts.
u
Only use an original impeller from the manufacturer as a spare part.
DANGER
Risk of explosion due to prohibited spare parts
Death or serious injuries upon explosion.
u
Only use original spare parts for fan repair.
u
If the fan is made of conductive plastic, the spare part must be made of the
same material (PPs-el).
NOTICE
Risk of damage due to prohibited spare parts
Component and material damage as well as production downtime.
▪ Loss of ATEX certification and void of warranty.
u
Only use original spare parts from the manufacturer for maintenance activi-
ties and repairs.
Order spare parts and wear parts from customer service (see title page) with the
following information:
• Type classification of fan according to nameplate or technical data sheet.
• Desired quantity.
• Specific designation
• of the spare part or wear part
_
26],
• or of the option or accessory
_
Have the following spare parts and wear parts ready for impeller replacement:
Pc.
Designation
Spare part
Wear part
1
Impeller
X
1
Hub cap
X
1
Hub adapter
X
1
Sealing ring (inlet cover)
X
1
Hub seal (option)
X
12.4
Preparation for repairs
Prepare the fan for repairs (impeller, electric motor, hub seal, etc.) as follows:
1.
Observe safety instructions
_
60].
2.
Switch off the fan and FC (option) and use the isolation switch to remove
voltage on all phases.
3.
Secure the isolation switch with a personal padlock to prevent unauthorized
energization until completion of the repair work. Hang tag on isolation
switch.
4.
Shut the shut-off damper to the supply air duct and discharge duct.
5.
Drain condensate to condensate drain type K (option).