Maintenance – Sears 645B User Manual
Page 8
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•'••»“o* ‘•■».m.iVi
FIGURE 10.
No Larger Than
1/2" Diameter
Ramp
FIGURE 11.
To lower the leaf ramp, use one hand to grasp
the handle at the top of the leaf ramp and lift
slightly. Pull up on the release bar, and Icwer the
leaf
ramp
to
the
ground.
Release
the
tar.
See
figure 12.
3. Bulky material, such as stalks or heavy blanches,
up
to
3"
in
diameter
should
be
fed
nto
the
chipper chute. See figure 13.
▲
WARNING:
Make
certain
leaf
ramp
is
raised
as
shown
when
using
the
chipper
chute.
Also
make
certain
the
chipper
chute door is closed when not in use.
IMPORTANT:
There
is
a
flail
screen
located
inside
the housing in the discharge area. If the flail screen
becomes
clogged,
remove
and
clean
as
instructed
in
the Maintenance section on page 9.
For
best
performance,
it
is
important
to
keep
the
shredding
blade
and
the
chipper
blades
sharp.
Refer
to Maintenance section, pages 9 and 10. If the com
position
of
the
material
being
discharged
changes
(becomes
stringy,
etc.)
or
if
the
rate
at
which
the
material
is
discharged
slows
down
considerably,
it
is
likely
that
the
shredding
blade
and/or
chipper
blades
are dull and need to be sharpened or replaced.
Leaf Ramp
Leaf
Ramp
3"
Maximum
Diameter
FIGURE 13
Chipper
Chute
MAINTENANCE
A
WARNING:
Always
stop
engine
und
dis
connect
spark
piug
wire
before
c
eaning,
lubricating
or
performing
any
resairs
or
maintenance.
LUBRICATION
Lubricate
the
pivot
points
on
the
release
bar,
leaf
ramp, chute deflector and chipper chute one 9 a sea
son using a light oil.
ENGINE
Refer to the separate engine manual for engi ie main
tenance instructions.
Maintain
engine
oii
as
instructed
in
the
separate
engine manual packed with your unit. Read and follow
instructions carefully.
Service air cleaner every 25 hours under normal con
ditions.
Clean
every
few
hours
under
extremely
dusty
conditions.
Poor
engine
performance
and
flooding
usually
indicates
that
the
air
cleaner
should
be
ser
viced. To service the air cleaner, refer to the separate
engine manual packed with your unit.
The spark plug should be cleaned and the gap reset
once a season. Spark plug replacement is recom-