Idex FITZPATRICK D6B Operating Instructions Manual page 12

The Fitzpatrick Company
3.3 Rotor Lip Seal
Your machine has been shipped with a one piece double lip shaft seal installed. The lip seal
is located on the inside rear chamber. The seal should be inspected regularly and replaced
whenever excessive wear is evident. Refer to the Comminutor Specification Sheet to
reference the Chamber assembly drawing number. The Chamber assembly drawing
illustrates the detail of the lip seal and provides part numbers should you require
replacement parts.
 A flanged lip seal, featuring two Flouraloy 72 lip seals with a built-in gas-purge ring
between is installed as a standard feature of the D6B comminuter.
3.3.1 Installing Rotor Lip Seal:
1.) Before installing, visually check (2) o-rings for tears or slices. Make sure o-rings
are firmly seated in their grooves. Replace o-rings if damaged. Check lip surfaces
for cut or gouges. Replace entire seal if lips are damaged.
2.) Slide lip seal over rotor shaft and press in lip seal while holding parallel to rear
chamber wall. Continue pressing in until completely seated against flanged
underside
Lip Seal
Fig.3.3.2: Installing Rotor Lip Seal
Lips face in
towards chamber
interior
Chamber
Fig.3.3.1: Lip Seal Gland with Gas Purge
A Unit of Corporation
D6B Manual Ver 1_24 Jan 2012-DRAFT.doc
Air Purge Inlet
Flange
O-Rings
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