© LNS FOX Instruction manual series WS (USA) pag. 21 of 28 - rev. 06-2014
•
Clean and remove residuals from the inside of the impeller case and of the drainage ring
•
Clean with accuracy drainage ring and impeller case
•
Reinstall impeller case, drainage ring and tight relative nuts
17a) open the unit
b) unscrew nuts
c) remove impeller case
d) remove drainage ring
e) cleaning of drainage ring
f) re-assembly
6.3.2. Cleaning of the impeller
“Personal safety – integrity of the unit”
Nuts and bolts can only be reused if in perfect conditions. Otherwise replace them with
new ones identical to the originals. Verify torque specifications indicated and apply thread
seal as indicated.
Procedure for cleaning the impeller case:
•
Remove impeller case
•
Unscrew main screw and using a special extractor remove the impeller. Do not use the impeller for
leverage.
•
In order to avoid unbalancing of the impeller make sure that residuals are removed completely using a
brush and degreaser. Do not use acids or solvent.
•
Once cleaning has completed reinstall impeller on the motor shaft.
•
Apply thread seal LOCTITE (medium type) on the thread of the screw. Tight it according to the torque
value listed on the relative sheet.
•
Reinstall impeller case and drainage ring making sure that nuts are properly tight.
18a) remove impeller case and
drainage ring
b) removal of impeller
c) impeller cleaning
