Samsung Component Placer CP45NEO Series Maintenance ReferenceMain switch turn-offdirection (clockwise)WarningWhen the main switch is turned on, since the cooling fanoperates, user’s hand may get injured. Careless touchingof the cable, etc. may cause electric shock. Therefore,special care is need while performing work. Check the operation state of the two cooling fans in the control rack and if the noiseof the cooling fan is acceptable and there is no problem in its operation, clean the dustin the control rack using vacuum cleaner and assemble it in the reverse order ofdisassembling.3-36