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Craftsman 138.37671 Operator's Manual page 8

18 in. reel mower

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CUTTING
HEIGHT ADJUSTMENT
See Figure 9.
• The cutting height of the mower adjusts from 1 3/8
- 2 1/2" (3.5-6.4
cm) with 9 positions
for adjustment
height by moving the height adjustment
levers to the
required position.
• To achieve the lowest cutting position, one at a time,
move the adjustment
levers on both sides,
located
next to the rear wheels, up to the highest position.
• To achieve
the highest
cutting
position,
move
the adjustment
levers on both sides to their lowest
position.
• Other cutting
heights
are achieved
by moving
the
adjustment
levers to any stop between
the highest
and lowest positions.
NOTE:
The two adjustment
levers
MUST be set to
the same position (height).
For best performance,
align the edge of the cutting
b(ades to overlap
the previously
cut path. This wi((
ensure no grass is missed during the process.
NOTE: Do not use wheels as a reference
point for
grass cut line.
MOWER
BLADE ADJUSTMENTS
See Figure 10.
_k
WARNING!
Blades are extremely
sharp.
To avoid
injury, do not touch
blades
when
making
adjustments.
NOTE: Blades are factory adjusted.
• Misalignment
can occur, often
caused
by blades
being
too loose
or too tight.
This
can
cause
an
uneven cut or difficulty
pushing the mower.
• Each end of the cutting
bar is adjusted
separately.
To move the cutting bar closer to the blades, turn the
adjustment
screw clockwise.
• To move the cutting bar away from the blades turn
the adjustment
screw counterclockwise.
• In order to perform
this adjustment
you must first
loosen the upper lock nut located between
the front
and rear radial wheels.
_k
CAUTION!
Adjusting the screws for blade
adjustments
is a very sensitive
procedure. A sixteenth
of a turn is considered
a major adjustment.
Before
tightening one adjustment screw, make sure to loosen
the opposite screw an equal amount.
CHECKING
THE ADJUSTMENT
See Figure 11.
• Turn mower upside down.
• Insert a piece of paper between
cutting bar and reel
blades, and slowly turn wheel by hand.
• Each
blade
should
cut across
the
paper
in a
continuous
line. If there are missed spots in the cut, it
is necessary
to make further adjustments.
See Mower
Blade Adjustments.
_k
CAUTION!
Do not overtighten
adjustment
screws,
as this could
damage
cutting
bar. Both
screws must be tight on final adjustment.
8 -- English

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