Hale Fyr Port - Manual (Page 20)

e) With impeller removed, remove the impeller key.
f) Remove the spring and carbon section (sealing washer) of mechanical seal
from engine crankshaft sleeve. Observe the ceramic seal seat and carbon
sealing washer. If they are scored or lip on the sealing washer is worn or
cracked, replace complete assembly.
g) If further disassembly is required beyond mechanical seal replacement, remove
the four 5/16-18 X 2 1/2 lg. screws and 5/16 flat brass washers that fasten pump
head to engine.
h) If mechanical seal ceramic seat was not removed previously, remove from head.
i) Pull engine crankshaft protection sleeve from shaft.
j) There is a replaceable clearance or wear ring used in this pump. Inspect impeller
hub and clearance ring bore, replace if any of these surfaces are scored or worn
excessively.
Assembly of Pump to Engine:
a) Coat the engine crankshaft with a thin layer of gasket sealer; such as, Loctite
Gasket Eliminator 504.
b) Lubricate the groove in the pump shaft sleeve (048-077000) using a
multipurpose grease and install ‘’ O “ ring (0400180-00) in groove. Slide this
assembly on engine crankshaft.
c) Position pump head on engine and align holes. If original screws are in good
condition, reuse, but apply a thread locking adhesive; such as, Loctite
Threadlocker 242 or equal to threads. If original screws were damaged or
corroded replace with four new 5/16-18 X 2 1/2 lg. plated nylok screws
P.N 018-1424-07. When installing screws use a new 5/16 flat brass washer
(097-0810-00) under the head of each screw.
NOTE: Hale has available small tubes of Loctite threadlocker adhesive (0.5cc),
Hale P/N 029-0010-01 d) Coat rubber cup of mechanical seal ceramic seal with
oil and press into pump head with ceramic surface toward you.
e) Coat rubber on inside of mechanical seal carbon sealing washer with oil and
using a turning motion, push onto shaft sleeve until carbon lip comes into contact
with ceramic surface.
CAUTION: Keep the ceramic seal seat and carbon sealing washer
surfaces clean. Be careful not to crack or chip ceramic surface or carbon
wearing lip.
f) Line up keyway of impeller with keyway of shaft, push impeller on shaft. Insert
impeller key (017-0060-01) until flush with face of impeller.