To Level Mower Housing; Side-To-Side Adjustment With Bubble Level; Alternate Side-To-Side Adjustment Method; Front-To-Back Adjustment - Craftsman 917.273641 Owner's Manual

Lawn tractor 18.5 hp, 42" mower electric start automatic transmission
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5.
Connect
suspension
arms to rear
deck brackets
and secure
with retainer
springs.
6.
Connect
anti-sway
bar to chassis
bracket
and secure with retainer
spring.
7.
Install
belt into electric
clutch
pulley
groove.
TO LEVEL
MOWER
HOUSING
Adjust
the mower while tractor
is parked
on level ground
or driveway.
Make sure
tires are properly
inflated
(See "PROD-
UCT SPECIFICATIONS"
section
of this
manual).
If tires are over or underinflated,
you will not properly
adjust
your mower.
SIDE-TO-SIDE
ADJUSTMENT
WITH
BUBBLE
LEVEL
NOTE:
If necessary,
check side-to-side
surface
below
tractor
for levelness
with a
long board and the bubble
level.
• Using the lift lever, place mower in posi-
tion where
no part of the mower, includ-
ing gauge wheels,
is touching
the ground.
• From left side of tractor, find the level
decal
on top of mower
and place bubble
level on decal
as indicated.
• Mower
is level side-to-side
when
bubble
is between
the two lines in the bubble
level.
• If adjustment
is necessary,
under
left
hand footrest,
turn lift link adjustment
nut (above
yellow
cap) in appropriate
direction
to bring bubble between
the
lines in the bubble level.
• Remove
bubble
level from mower and
store in a safe place.
Bubble Between
Bubble Level
Lines
Level Decal
Brake//_\
Left Hand
Pedal
/_ootrest
Lift Link
astment
Yellow Cap
Nut
ALTERNATE SIDE-TO-SIDE
ADJUSTMENT
METHOD
• Raise mower to its highest position.
• At the midpoint of both sides of mower,
measure height from bottom edge of
mower to ground.
Distance "A" on both
sides of mower should be the same or
within 1/4" of each other.
• If adjustment is necessary, make adjust-
ment on one side of mower only.
• To raise one side of mower, tighten lift
link adjustment nut on that side.
• To lower one side of mower, loosen lift
link adjustment nut on that side.
NOTE:
Each full turn of adjustment nut
will change mower height about 1/8".
Recheck measurements
after ad-
justing.
Bottom Edge of
Bottom Edge of
Mower to Ground
Mower to Ground
Suspension
Arm
Lift Link
ustment
Nut
FRONT-TO-BACK
ADJUSTMENT
IMPORTANT:
Deck must be level side-to-
side. If the following
front-to-back
adjust-
ment is necessary,
be sure to adjust
both
front links equally
so
mower
will stay
level side-to-side.
To obtain
the best cutting
results,
the
mower
housing
should
be adjusted
so
that the front is approximately
1/8" to 1/2"
lower than the rear when
the mower
is in
its highest
position.
Check
adjustment
on right side of tractor.
Measure
distance
"D" directly
in front of
and behind
the mandrel
at bottom
edge of
mower
housing
as shown.
• Before
making
any necessary
adjust-
ments,
check that both front links are
equal
in length.
• If links are not equal
in length,
adjust
one link to same
length
as other
link.
• To lower front of mower
loosen
nut "E"
on both front links an equal
number
of
turns.
• When
distance
"D" is 1/8" to 1/2"
lower at front than rear, tighten
nuts "F"
against
trunnion
on both front links.
• To raise front of mower,
loosen
nut "F"
from trunnion
on both front links. Tighten
nut "E" on both front links an equal num-
ber of turns. The two front links must
remain
equal in length.
• When
distance
"D" is 1/8" to 1/2" lower
at front than rear, tighten
nut "F" against
trunnion
on both front links.
Recheck
side-to-side
adjustment.
23

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