32
06.2019
Operating manual
Centrifugal fans
HF R | RV | MRV
www.hlu.eu
Before work starting, note that:
J Secure the fan against accidental start-up.
J Remove the belt cover.
J Measure the spring travel f = Ea at test force F using a traction balance
J Increase or reduce the motor-to-bearing centre distance by adjusting the mounting screws
until reaching the set-point. For this, release the locknut at the upper and lower setscrew.
Shaft and belt pulleys must be exactly aligned, maximum deviation is 1°.
The values for test force depend on the prole and diameter of the little belt pulley (see next
schedule).
Disc Test load Disc Test load Disc Test load Disc Test load
SPA95 23 SPB150 42 SPC224 85 SPZ63 12
SPA100 25 SPB160 45 SPC236 88 SPZ67 13
SPA106 27 SPB170 48 SPC250 92 SPZ71 14
SPA112 29 SPB180 51 SPC265 96 SPZ75 15
SPA118 31 SPB190 54 SPC280 100 SPZ80 16
SPA125 33 SPB200 58 SPC300 106 SPZ85 17
SPA132 35 SPB212 61 SPC315 110 SPZ90 19
SPA140 36 SPB224 64 SPC335 115 SPZ95 20
SPA150 38 SPB236 66 SPC355 120 SPZ100 21
SPA160 39 SPB250 69 SPC375 123 SPZ112 22
SPA180 42 SPB280 77 SPC400 126 SPZ125 24
SPA180 45 SPB315 85 SPC425 130 SPZ140 25
SPC450 134
SPC475 138
SPC500 141
SPC530 146
SPC560 150
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