Craftsman 28903 Lawn Mower User Manual


 
TRACTOR
Alwaysobservesafetyruleswhenperforming
any maintenance,
BRAKEOPERATION
Iftractor requiresmorethanfive (5)feet to
stop at highestspeedin highestgear on a
level,dry concreteor pavedsurface,then
brakemustbecheckedandadjusted_(See
"TO CHECK BRAKE"in the Service and
Adjustmentssectionof thismanual).
TIRES
Maintainproper air pressurein all tires
(Seesidesof tirefor properPSI).
Keeptiresfree of gasoline,oil, or insect
controlchemicalswhichcanharmrubber.
Avoid stumps,stones,deep ruts, sharp
objectsandotherhazardsthatmaycause
tire damage.
NOTE;To seal tire puncturesand prevent
flattires dueto slowleaks,tire sealantmay
be purchasedfrom yourlocal partsdealer.
Tire sealantalso preventstire dry rot and
corrosion°
OPERATORPRESENCESYSTEMAND
REVERSEOPERATIONSYSTEM(ROS)
Be sure operator presence and reverse
operationsystemsareworkingproperly, If
yourtractordoesnotfunctionas described,
repairthe problemimmediately.
The engine shouldnot start unlessthe
brake pedal is fully depressed,and the
attachmentclutchcontrolis in the disen-
gagedposition.
CHECK OPERATOR PRESENCE
SYSTEM
Whentheengineis running,anyattempt
bythe operatorto leavethe seatwithout
first settingtheparkingbrakeshouldshut
off the engine.
Whenthe engineis runningandthe at-
tachmentclutchisengaged,anyattempt
bythe operatorto leavethe seatshould
shut offthe engine.
Theattachmentclutchshouldneveroper-
ateunlessthe operatoris in the seat.
CHECK REVERSE OPERATION(ROS)
SYSTEM
, Whentheengineisrunningwiththeignition
switchintheengine"ON"positionandthe
attachmentclutchisengaged,anyattempt
bythe operatorto go into reverseshould
shutoffthe engine.
ROS "ON" Position
Engine "ON" Position
(Normal Operating)
When the engine is running with the ignition
switch in the ROS "ON" position and the
attachment clutch is engaged, any attempt
by the operator to shift into reverse should
NOT shut off the engine.
BLADE CARE
For best results mower blades must be kept
arp. Replace bent or damaged blades.
CAUTION: Use only a replacement
blade approved by the manufacturer of your
tractor. Using a blade not approved by the
manufacturer of your tractor is hazardous,
could damage your tractor and void your
warranty°
BLADE REMOVAL
1. Raise mower to highest position to alIow
access to blades.
NOTE: Protect your hands with gloves
and/or wrap blade with heavy cloth.
2. Remove blade bolt by turning counter-
clockwise°
3. Install new blade with stamped "THIS
SIDE UP" facing deck and mandrel
assembly.
IMPORTANT: To ensure proper assembly,
center hole in blade must align with star
on mandrel assembly.
4. Install and tighten blade bolt securely
(45-55 FL Lbs. torque).
Mandrel
Assembly
Blade
(Sl
Center Hole [_
IMPORTANT: Special blade bolt is heat
treated..
I8