| 摘要 |
PURPOSE:To enhance efficiency in the maintenance work by engaging a stop part disposed above a filter holder with a stop part provided on the housing thereby facilitating mounting/demounting of a filter cover on/from the housing. CONSTITUTION:A sponge filter 6 is held between a mesh filter holder and the side face of a housing 1. A filter cover 5 is then turned to engage a click 5b with a stop hole. Consequently, a cooling fan section is assembled and a cooling fan 2 is operated. When maintenance work, i.e., cleaning work of the sponge filter 5 and mesh filter 7, is performed, the click 5b of the filter holder 5 is disengaged to open the filter holder 5 and the mesh holder and then the sponge filter 6 is taken out. Consequently, the sponge filter 6 is cleaned and the mesh filter 7 can be cleaned by applying the forward end of cleaner. |
