REASSEMBLY
Position piston onto crankshaft rod
as-
sembly,
so
EX-H
on piston will
be
on exhaust
side of the cylinder,
90°
counterclockwise from
flywheel end.
Inside piston the word
'TOP"
is printed on wrist
pin boss. This must be toward flywheel end of
crankshaft assembly.
Using Lawn-Boy Wrist Pin Installer, Part
No.
684233,
push the wrist pin into the piston.
NOTE:
To
prevent damage to piston skirt or
connecting rod, do not apply heavy side loads
or drive wrist pin in using a hammer and punch.
Using Lawn-Boy Internal Snap Ring
Pliers, Part
No.
612533,
install the
snap
rings to
retain the wrist pin.
NOTE:
For best retention of snap rings; install
snap rings with sharp edge outward and open-
ing of ring facing the top or bottom ofpiston.
Wrist
Pin
Installer
Part
No.
684233
Snap Ring Pliers
Part
No.
612533
Spread ring end gap and slide ring
(s)
evenly onto piston.
NOTE:
To
prevent distortion and sticking in
piston ring grooves, do not install piston ring
one end at a time.
7-14
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