Installation instruction for radial blowers for areas subject to gas and dust explosion hazards
07/2019 KARL KLEIN Ventilatorenbau GmbH
Page 18
GB
7
Maintenance, care and repair instructions
Instruction!
Depending on the intended use of the blower and the respective system concept, the
operating entity may consider additional cleaning and/or maintenance intervals.
Unauthorized repair of damage or exchange of components are hazardous. This renders the
explosion protection features ineffective.
7.1
Maintenance and care
When using condensation water drainage holes, or when the equipment is deployed in
locations with dew buildup, causing condensation water to collect in the motor's interior,
the collected condensation water must be drained in regular intervals via the
condensation water drainage opening at the lowest point of the bearing enclosure; the
drainage opening must be subsequently resealed.
The dust buildup on the equipment surface must not exceed a thickness of 5mm.
The blower wheel must be regularly inspected for contamination and cleaned to identify
imbalances of the blower wheel early, and to prevent imbalances.
7.2
Inspect and exchange bearings
Inspect the unimpeded operation of bearings in regular intervals by monitoring the
operating noises; replace as needed.
The ball bearings must be replaced by the manufacturer or an authorized repair shop
after no more than 18,000 operating hours or 3 years.
7.3
Repair instructions and procedures
Do not perform customer repairs on defective, damaged or unevenly running blowers, but
send the equipment to the manufacturer for repair.
The manufacturer will ensure that repairs are performed properly and that the equipment is
properly balanced.
Only qualified and trained personnel should perform the disassembly of the blower.
Attention! Potential for damage to the
equipment!
When balancing weight clips
(1)
are relocated or
removed from the blower fins, an imbalance results.
Never perform repairs on the blower on your own. If
the assembly is not performed properly, any
subsequent use may create an explosion hazard.
006_KL01_01
1
