7 Servicing/Maintenance
40 of 60
Multi Eco
5.
Take off fan impeller 831.
6.
Undo the shaft nut; remove and discard the washer.
7.
Pull the complete stage assembly off the shaft.
8.
Dismantle impellers 230, diffusers 171 and sealing element of stage casing
412.02. Remove and discard O-ring 412.01.
9.
Remove and discard circlip 932.03 (used for locking the mechanical seal).