HLU HF R 48 R Series - 10 Emergency; 11 Dismantling; Disposal

37
www.hlu.eu
06.2019
In case of emergency, switch o󰀨 the main switch or withdraw the power supply connector.
Dismounting
Dismounting may be done only by qualied personnel.
Before starting dismounting work, make sure that the switch-o󰀨 proce-
dures are followed.
Disposal
The fan is made mainly of steel and plastics (except the electrical
equipment) and must be discarded in compliance with the applicable
local environmental regulations.
For discarding the cleaning agents, follow the local regulations and the
information given in the manufacturer safety data sheets.
Contaminated cleaning tools (brushes, clothes, etc.) must be discarded
in compliance with the manufacturer specications as well.
Depending on the fan application, the housing and the impeller must be
considered as special waste and discarded accordingly.
Injection moulded or sintered housings are provided with recycling
signs indicating which type of plastic material was used.
11. Dismantling / Disposal
10. Emergency
Operating manual
Centrifugal fans
HF R | RV | MRV
Trouble Possible cause Remedial action
Belt broken
or damaged
Normal abrasion Find reason, change V-belts
V-belt tension too high Reduce V-belt pre-tension
V-belt does not align Check alignment
V-belts slip
through
Wrong pre-tension
Check belt tension and correct if
necessary
Backlash due to decreasing V-belt
pre-tension
Check and re-adjust the V-belt
Sliding
noises
Motor winding defective Consult manufacturer
Impeller unbalance
Balancing required, consult manufac-
turer
Foreign body between impeller and
housing
Remove the foreign body
Sudden pow-
er decrease
Inlet or outlet pipe untight Check the pipes
Connecting collar defective Replace the collar