Service And Ad Just Ments - Craftsman 917.255950 Owner's Manual

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SERVICE AND .ADJUSTMENTS
FRONT-TO-BACK ADJUSTMENT(See FIGS 31and 32)
TO ADJUST MOWER DRIVE BELT (See
To obtain the best cutting results, the mower housing should,
be adjusted so the back is approximately 7/8" to 1-1/8'
higher than the front when the mower is in its highest posi-
tion
Measure distance"D" from ground line to bottom of deck curl
at centerline of left and right blade mandrels
BACK FRONT
FIG. 31
D
• To raise rear of mower, loosen nut "E" on both rear sus-
pension arms Screw both nuts "F" on both rear suspen-
sion arms an equal number of turns
• When distance "D" is 7/8" to 1-1/8" higher at rear than
front, retighten nuts "E"
NUT "E"
SUSPENSION
NUT "E" ARMS
FIG. 32
• Recheck side-to-side adjustment.
IMPORTANT: WHEN ADJUSTING REAR SUSPENSION
ARMS, ALWAYS ADJUST BOTH
EQUALLY SO MOWER WILL STAY
LEVEL SIDE-TO-SIDE.
FIG. 33)
• Lower mower with attachment lift control
° Check dimension'W' on idler bracket assembly as shown.
If dimension is 1/4" or less, belt should be adjusted.
. Pull tension pulley lever forward to loosen bell
• Remove idler pulley and reassemble in "NEW" pulley pm
sition hole. Tighten securely_
• Push tension pulley lever rearward into operating posi-
tion.
• Check belt for proper position in all pulley grooves.
NOTE: When installing a new replacement mowe,r drive
belt, idler pulley must be moved back to ORIGINAL pulley
_osition.
CLUTCH MOWER
PULLEY
BELT
LEVER IDLER
PULLEY
TENSION
PULLEY
IDLER
BRACKET
ASSEMBLY
IDLER
PULLEY
NEW
PULL FORWARD PULLEY ORIGINAL
'T'O LOOSEN BELT POSITION PULLEY
FOR EASIER POSITION
BELT INSTALLATION
FIG. 33
TO REPLACE MOWER DRIVE BELT
Reverse procedure and install new belt as described in
"DRIVE BELT INSTALLATION" in the assembly section of
this manual
NOTE: If old mower drive belt was adjusted, idler pulley
must be moved back to"ORIGINAL position when installing
a new bell
2O