3.
INTERNAL CLEANING INSTRUCTIONS
CAUTION!
Internal deposit build up can cause:
•
performance variations;
•
alteration in clearances resulting in seizing;
•
out of balance rotor.
3.1 CLEANING
INSTRUCTIONS
In case it is necessary to clean the inside of the blower, proceed
as follows:
1. Remove #183 foot through the extraction of #920
4 x screws.
2. Remove in order #915 and #902 screws placed on #162
cover.
3. Remove #162 cover by using the two holes between #161
housing and #162 cover.
4. Remove the #900 screw and #365 washer.
5. Remove the #360 bearing cover and extract the #321
bearing using a bearing puller.
6. Remove the #230 impeller if necessary using a puller.
7. Clean and reassemble in reverse order.
If needed, reconstruct #423 seal using Loctite 598 or similar,
after cleaning the sealing surfaces of any existing sealant.
3.2
REPLACEMENT SOUND-ABSORBING PANELS
If needed, replace the foam sound-absorbing panels, proceed as
follows:
1. Remove #906 screws.
2. Take away the #700 silencers from the unit, being careful
not to lose the #424 gaskets.
3. Extract the #720 panels from the silencer housings.
4. Clean up the #710 retaining screen.
5. Replace and reassemble proceeding in reverse order,
remembering to include the #424 gaskets
GB - 15/38
230 902 423 161
162
360
915
321
365
900
920 183 424 906 700 710 720
Cover extraction's hole
