Craftsman 536.257670 Owner's Manual page 24

SERVICE AND ADJUSTMENTS
FRONT-TO-REAR ADJUSTMENT ( See Fig 26B)
Measure height, from level surface, of right side blade tips
at fro nt and rear of mower deck If distances are equal or net
more than 1/8 inch lower in front, no adjustment is neces*
sary
If adjustment is necessary, loosen front eccentric mounting
screws and turn front adjustment eccentric clockwise or
counterclockwise as required NOTE: When groove on
eccentric is pointed straight forward, front of mower deck is
at lowest poinL Turn both eccentrics so grooves are
pointing same direction (up or down)
If more adjustment is necessary, front of mower deck may be
raised or lowered by relocating eccentric mounting screws in
higher or lower position on mower deck mounting bracket
• Hold eccentric with a wrench while tightening eccentric
mounting screws securely
TO ADJUST MOWER DECK HEIGHT
(See Fig. 27)
Before making any mower deck height adjustments check air
pressure in all four tires All tires must be properly inflated for
mower deck height to be properly adjusted For recommended
air pressure, see "Product Specifications" on page 3
The main frame on the lawn tractor should be level across the
front from left side to right side If main frame will not sit level, the
two outside axle mounting screws may be too tight The two
outside mounting screws must be loose enough to allow front
axle to pivot NOTE: Do Not loosen center mounting screw.
® Place tractor on a level surface
e Place cutting height in lowest position (No 1 see inset)
e Measure height of mower deck from bottom edge of left
front corner to ground Height should be 1-3/4 inches If
adjustment is necessary, go to next step.
o Locate adjustment nut near left mower deck lift arm (see
Fig. 27)
e Loosen jam nut on adjustment rod
• Turn adjustment nut to obtain 1-3/4 inches NOTE: Turn
adjustment nut clockwise to raise mower deck or counter-
clockwise to lower mower deck
• Re-check measurement as outlined above If more
adjustment is necessary, turn adjustment nut until
height of mower deck is 1-3/4 inches
e Tighten jam nut up against adjustment nut
e Check and adjust level of mower deck as outlined in
paragraph TO LEVEL MOWER DECK
GROOVE_
FRONT ADJUSTMENT
ECCE
MOWER DECK MOUNTING MOWER DECK LEVELING
BRACKET ADJUSTMENT HOLES
FIG= 26
MEMORY ROD
CUTTING HEIGHT (CUTTING
ADJUSTMENT
PEDAL HEIGHT
POSITION
NO 1)
.L- _L,__.__
,.-', "ROD
ADJUSTMENT _ _
JAM
NUT
/_..
MOWERDECK
LIFTARM
VIEW FROM LEFT SIDE OF TRACTOR
FIG. 27
24