To Replace Mower Blade Drive Belt; Front-To-Back Adjustment; Belt Removal; Belt Installation - Craftsman 917.271861 Owner's Manual

• 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
adjustment 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 adjusting.
• Recheck side-to-side adjustment.
_ Mandrel
Both Front Links Should be Equal in Length
Bottom edge of _ Bottom edge of
mower to f-_t_]---_--]_/_--_ mower to
ground___...{_ .__,,/, ground
A'-_ _'"_Ground Line_'_T-FA
Sus eno, oo
A rm
LiftLink
Adjustment Nut
Trunnion
Front Links
"E"
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 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 number 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.
24
TO REPLACE MOWER BLADE DRIVE
BELT
The mower blade drive belt may be
replaced without tools. Park the tractor on
level surface. Engage parking brake.
BELT REMOVAL-
1. Remove mower from tractor (See "TO
REMOVE MOWER" in this section of
manual).
2. Work belt off both mandrel pulleys and
idler pulleys.
3. Pull belt away from mower.
BELT INSTALLATION -
1. Work belt around both mandrel
pulleys and idler pulleys
2. Make sure belt is in all pulley grooves
and inside all belt guides.
3. Install mower (See "To Install Mower"
in this section of this manual).
Mandrel
Man,
Pulley