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6-5.
Clean
Air
Intake
And
Cooling
Areas
6-6.
Drive
Belt
Adjustment
And
Replacement
I
~
READ
SAFETY
BLOCKS
at
start
of
Section
6
before
proceeding.
Figure
6-7.
Drive
Belt
Adjustment
and
Replacement
Figure
6-6.
Air
Intake
And
Cooling
Areas
Tools
Needed:
~
9/16,5/8
in
7/16
in
Ref.
ST-161
482
Stop
engine.
4
Securing
Screw
sioned,
belt
deflects
inward
about
1/8
in
(3
mm).
1
Belt
Guard
To
replace
belt,
remove
tensioning
screw
Remove
five
screws
securing
belt
guard.
and
loosen
securing
screws.
Remove
belt.
Adjust
belt
tension
by
turning
tensioning
Remove
guard
and
inspect
belt.
Install
new
belt
and
hand-tighten
securing
screw
in
or
out
until
proper
belt
tension
is
screws.
Reinstall
tensioning
screw,
obtained.
2
Drive
Belt
Check
belt
tension
by
pressing
belt
midway
Readjust
belt
tension
if
necessary.
Replace
between
pulleys.
Apply
about
8.5
lb
(3.9
kg)
Reinstall
belt
guard
and
run
unit
ten
minutes.
cracked
belt.
pressure
to
a
new
belt
or
5.5
lb
(2.5
kg)
pres-
Stop
unit.
Remove
belt
guard
and
readjust
3
Tensioning
Screw
sure
to
a
used
belt.
When
properly
ten-
belttensionifnecessary.Replacebeltguard.
OM-160
518
Page
14