Howden WRV, Руководство по обслуживанию, Страница: 25 / 64

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7.3 DISMANTLING PROCEDURE FOR ANNUAL INSPECTION (Continued)
Extract the set pins securing the discharge cover to the main casing body. (Fig. 8) Push the piston
rod to the bottom of the cylinder.
Carefully draw the cover clear of the piston rod/valve spindle. Care should be taken to prevent
damage to the actuator cylinder which is part of the cover.
At this stage, the slide valve can be withdrawn from the compressor for a visual inspection. (Fig. 9)
Fig. 8
Fig. 9
A light shone from the slide valve bore will permit a visual inspection of the rotors. (Fig. 10-11)
Fig. 10
Fig. 11