Craftsman 917.270631 owner manual To Replace Mower Blade Drive

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" on page 5 of this

manual). If tires are over or underinflated, you will not properly adjust your mower.

sIDE-TO-SIDE ADJUSTMENT

o Raise mower to its highest position. o Measure height from bottom of deck

curl to ground level at front corners of mower. Distance "A" on both sides of mower should be the same.

o If adjustment is necessary, make adjust- ment on one side of mower only.

o To raise one side of mower, tighten lift link adjustment nut on that side.

o To lower one side of mower, loosen lift link adjustment nut on that side.

NOTE: Each half turn of adjustment nut will change mower height about 3/16".

o Recheck measurements after adjusting.

Bottomr]Bottom

Suspension

Arm

Lift Link Adjustment Nut

o If links are not equal in length, adjust one link to same length as other link.

o To lower front of mower housing, loosen nut "G" on both front links an equal number of turns.

° When distance "F" is 1/8" to 1/2" lower

at front than rear, tighten nut "H" against trunnion on both front links.

o To raise front of mower housing, loosen nut "H" from trunnion on both front links.

Tighten nut "G" on both front links an

equal number of turns.

o When distance "F" is 1/8" to 1/2" lower at front than rear, tighten nut "H"

against trunnion on both front links. NOTE: Each full turn of nut "G" wilt

change dim. "F" by approximately 3/8".

°Recheck side-to-side adjustment.

Mandrel

Both Front Links Should be Equal in Length

r g

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 wilt stay level side-to-side.

To obtain the best cutting results, the mower housing should be adjusted so 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 "F" directly in front of and behind the mandrel at bottom edge of mower housing as shown.

°Before making any necessary adjust- rnents, check that both front links are equal in length.

Front Links

TO REPLACE MOWER BLADE DRIVE

BELT (See Illustration Next Page) The mower blade drive belt may be replaced without tools. Park the tractor on level surface. Engage parking brake.

BELT REMOVAL

o Remove mower from tractor (See "TO REMOVE MOWER" in this section of

this manual).

o Work belt off both mandrel pulleys and idler pulleys.

°Pull belt away from mower:

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