Blade Replacement; To Remove Mower Belt - Sears Craftsman 917.255275 Owner's Manual

MOWER MAUNTENANCE
QNSTRUCTg@NS
FOR ANY ADJUSTMENTS, INSPECTION
OR MAINTENANCE:
PUSH TRACTOR CLUTCH-BRAKE PED-
AL COMPLETELY INTO BRAKE POSI-
TION. PLACE PARKING BRAKE IN
"LOCK" POSITION. MOVE GEAR SHIFT
LEVER TO "NEUTRAL" POSITION,
PLACE MOWER BLADE CLUTCH LEVER
IN "DISENGAGED" POSITION. TURN
IGNITION KEY TO "OFF" POSITION,
MAKE ABSOLUTELY SURE THE
BLADES AND ALL MOVING PARTS
HAVE COMPLETELY STOPPED,_ RE-
MOVE THE IGNITION KEY, DISCON-
NECT THE SPARK PLUG WIRE FROM
THE SPARK PLUG AND KEEP WIRE
AWAY FROM THE PLUG TO PREVENT
INJURY FROM ACCIDENTAL START-
ING°
BLA CALVE
For best results mower blades must be kept sharp. The blades
can be sharpened with a few strokes of a file or on a grinding
wheel, We suggest they be sharpened after every t5 hours of
mowing. Do not attempt to sharpen while on mower,
1o When grinding, care should be taken to maintain blade bal-
ance and the blade should be checked for proper balance
before reinstaltation on mower_ Unbalanced or bent blade
will cause excessive vibration when running, and eventual
damage to mower or engine_ Replace bent or damaged
blades°
2. To ensure satisfactory operation, it is recommended that
before the start of each mowing season, the old blades be
discarded and replaced with new blades, Mower blades can
be purchased at all Sears retail and catalog stores
ALWAYS USE GRADE 5 HEAT TREATED
BOLTS TO ATTACH BLADES, CHECK
BOLTS IN BLADES OCCASIONALLY TO
MAKE SURE BOLTS ARE TIGHT TOR-
QUE BOLTS 27 ,. 35 FT. LBS,
A GRADE 5 HEAT TREATED BOLT
CAN BE IDENTIFIED BY THREE
LINES INDICATED ON THE BOLT
HEAD AS SHOWN AT LEFT.
DABI.Y I&BNTENANCE
Make sure all nuts on bolts are tight and cotter pins are secure,
Keep blades sharpoObserve all safety precautions Keep mower
well lubricated (refer to page 12)
CLEANI; G MC)WER
I
DISCONNECT SPARK PLUG WIRE TO
PREVENT ACCIDENTAL STARTING BE-
FORE CLEANING_
Water pressure from a garden hose wilt remove fresh clippings
from underside of mower, Clean mower after each mowing_
BLAI E REPLACEMENT
Raise mower to highest position to permit access to Blades,
1o Remove Bolt, Lockwasher and Washer (Fig 31) (turn
counterclockwise),
2. Place new Blade between Flanges, (the word "TOP" is
stamped on atl Blades to assure proper installation), and se-
cure with Washer, Lockwasher and Bolt previously re..
moved, TIGHTEN SECURELY.
-15-
TO REMOVE MOWER BELT
REPLACE ONLY WITH THE BELTS SPECIFIED tN THIS
MANUAL
1, Place Mower Blade Clutch Lever in '=DISENGAGED"
position (Fig, 28),
2, Move Lift Lever (Fig_ 26) forward to lower Mower to its
lowest positiom
3_ Loosen bolt and nut in tdler Pulley (Page 22, Key No 32),
Remove Bett from Engine Putley (Fig. 32),
4_ Remove bolts, washers and nuts from LoHoSlide Bracket
(Fig, 32).
5,, Pull Spring Brake Assemblies away from Jackshafts to re-
move Belt (Fig. 32),
6 Assemble new Belt by reversing the above procedure,