Hale Fyr Pak(2006 to Present) - Manual (Page 21)

Fyr Pak
Operation and Maintenance Manual
21
CAUTION: Keep the seal seat and carbon sealing washer surfaces clean. Be careful not to crack
or chip seal surfaces.
g. Line up keyway of impeller with keyway of shaft. Push impeller on shaft. Insert impeller key until
flush with face of impeller
f. Line up keyway of impeller with keyway of shaft; push impeller on shaft. Insert impeller key until
flush with face of impeller.
g. Coat end of shaft and impeller with a thin layer of gasket sealer.
h. Coat threads of a new impeller screw with a thread locking adhesive (Loctite 2440 or equal).
i. Mount impeller washer and impeller screw. Torque impeller screw to 10 ft/lbs
ATTENTION: The impeller screw is left hand thread.
If impeller clearance ring requires replacement proceed with the following steps. If impeller
clearance ring is in good condition, proceed to step “m”.
j. With the clearance ring removed from volute body, inspect clearance ring pins. If
these are damaged replace.
k. Apply a thin coat of oil or multipurpose grease to groove of impeller clearance ring
and install O-ring into groove. Coat the outside of clearance ring and O-ring with oil or
multipurpose grease.
l. Aligning the holes in impeller clearance ring with pins in volute body, press clearance
ring into volute body.
m. Coat the inside of clearance ring bore and outside of impeller hub with oil.
n. Install O-ring on pump head pilot and coat O-ring and pump head pilot diameter with
either oil or a multipurpose grease.
o. Mount volute body with clearance ring to pump head.
p. Install the pump/engine assembly to mounting base. Refer to item 4, “Assembly of
Pump/ Engine to Mounting Base”