HERZ
GmbH
BA HD240 V30 R24 10_2017 EU short.doc
15
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
body 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 bolts.
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
