Sears 917.255741 manual Maintenance = Mower, Blade Replacement, Blade Care, Cleaning Mower

Models: 917.255741

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MANDREL

ASSEMBLY

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FLANGES

LOCKWASHER _

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.ExeOLT

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FIGURE 21

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CENTER

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...........

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/ HOLE

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FIGURE 22

MAINTENANCE = MOWER

FOR ANY ADJUSTMENTS, INSPECTION

OR MAINTENANCE:

PUSH TRACTOR CLUTCH=BRAKE PED-

AL COMPLETELY INTO BRAKE POSI-

TION, PLACE PARKING BRAKE IN

"ENGAGED" POSITION. MOVE GEAR

SHIFT LEVER TO "NEUTRAL" POSI-

TION, PLACE MOWER BLADE CLUTCH

LEVER IN "DISENGAGED" POSITION.

TURN IGNITION KEY TO "OFF" POSI-

TION. 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 STARTING°

BLADE CARE

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 15 hours of mowing, Do not attempt to sharpen while on mower,

When grinding, care should be taken to maintain blade bal- ance and the blade should be checked for proper balance

before reinstatlation on mower, Unbalanced or bent blade

will cause excessive vibration when running, and eventual

damage to mower or engine Replace bent, damaged or un- balanced blades,

To check Blade balance, drive a nail into a beam or wall. Leave about one inch of the straight nail exposed. Place Center Hole of clean Blade over the head of the nail (Fig,

22). NOTE: CENTER HOLE OF BLADE ON NAIL IF BLADE tS PROPERLY BALANCED, BLADE SHOULD REMAIN IN POSITION SHOWN IN FIG 22. IF EITHER END OF THE BLADE MOVES DOWNWARD, BLADE IS NOT BALANCED AND MUST BE REPLACED.

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 any Sears Service Center/Departments and most Sears Retail Stores=

DAI LY MAI NTENANCE

Make sure all nuts on bolts are tight and cotter pins and retain,, er springs are secure° Keep blades sharp. Observe all safety pre-

cautions Keep mower well lubricated (refer to page 22},

CLEANING MOWER

DISCONNECT SPARK PLUG WIRE TO

PREVENT ACCIDENTAL STARTING BE-

FORE CLEANING.

Water- pressure from a garden hose will remove fresh clippings from underside of mowen Clean mower after each mowing_

BLADE REPLACEMENT

Raise Mower to highest position to permit access to Blades_

1_ Remove Bolt, Lockwasher and Washer (Fig. 2!) (turn counterclockwise (f'_}_

2.Place new Blade between Flanges, (the word "TOP" is stamped on all Blades to assure proper installation), and secure with Washer, Lockwasher and Bolt previously re- moved, TIGHTEN SECURELY..

ALWAYS USE GRADE 5 HEAT TREATED

BOLTS TO ATTACH BLADES, CHECK

BOLTS IN BLADES OCCASIONALLY TO

MAKE SURE BOLTS ARE TIGHT° TOR-

QUE BOLTS 30 - 35 FTo LBS_

A GRADE 5 HEAT TREATED BOLT

CAN BE IDENTIFIED BY THREE

LINES ON THE BOLT HEAD AS

SHOWN AT LEFT°

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Sears 917.255741 manual Maintenance = Mower, Blade Replacement, Blade Care, Cleaning Mower