Operation - Craftsman 151.37664 Operator's Manual

CUTTING HEIGHT ADJUSTMENT
See Figure 9.
■ The cutting height of the mower adjusts from 3/4 -
2 1/2" (1.9 - 6.3 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
blades to overlap the previously cut path. This will
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.
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 diffi culty 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.
■ When the space equals the thickness of paper
(0.12mm), insert a piece of paper between one of the
blades and the cutting bar, and slowly turn the wheel
by hand.
■ The blade should cut the paper evenly at every point.
If not, it is necessary to readjust the cutting action.
CAUTION! Adjusting the screws for blade
adjustments is a very sensitive procedure. A sixteenth
of a turn is considered a major adjustment. Βefore
tightening one adjustment screw, make sure to loosen
the opposite screw an equal amount.

OPERATION

CHECKING THE ADJUSTMENT
See Figure 11.
■ Turn mower upside down.
■ Insert a piece of paper between cutting bar and one
of the 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.
CAUTION!
screws, as this could damage cutting bar. Both screws
must be tight on fi nal adjustment.
8 ― English
Do not overtighten adjustment