Craftsman 917.272233 Lawn Mower User Manual


 
TRACTOR
Always observe safety rules when
performing any maintenance.
BRAKE OPERATION
if tractorrequires more than six (6) feet
stoppingdistance at high speed in
highestgear, then brake must be ad-
justed. (See TO ADJUST BRAKE" inthe
Service and Adjustmentssection of this
manual).
TIRES
Maintain proper air pressure inall tires
(See "PRODUCT SPECIFICATIONS"
section of this manual).
Keep tires free of gasoline, oil, or insect
control chemicals which can harm
rubber.
Avoid stumps,stones, deep ruts,sharp
objects and other hazards that may
cause tire damage.
NOTE: To seal tirepunctures and prevent
fiat tires due to slow leaks, tire sealant
may be purchased from your local parts
dealer. Tire sealant also prevents tire dry
rot and corrosion.
OPERATOR PRESENCE SYSTEM
Be sure that operator presence and
interlock systems are workingproperly.If
your tractordoes not function as de-
scribed below, repair the problem
immediately.
The engine should not start unless the
brake pedal is fully depressed and
attachment clutchcontrol is in the
disengaged position.
When the engine is running, any
attempt bythe operatorto leave the
seat withoutflint setting the parking
brake should shut offthe engine.
When the engine is running and the
attachment clutch is engaged, any
attempt bythe operator to leave the
seat shouldshut off the engine.
The attachment clutch should never
operate unlessthe operator is in the
seat.
BLADE CARE
For best resultsmower blades must be
keptsharp. Replace bent or damaged
blades.
BLADE REMOVAL
1. Raise mower to highest positionto
allow access to blades.
2. Remove hex bolt, lock washer and flat
washer securing blade.
3. Install new or resharpened blade with
trailingedge up towards deck as
shown.
IMPORTANT: To ensure properassembly,
center hole in blade mustalign with star
on mandrel assembly.
4. Reassemble hex bolt, lock washer
and flat washer in exact order as
shown.
5. Tighten bolt securely (45-55 Ft. Lbs.
torque).
IMPORTANT: Blade belt isGrade 8 heat
treated.
Mandrel
Trailing Assembly
Rat
Lock Washsr_
HexBolt,,,.._D
(Grade8)*_ Hole
*A Grade8 HeatTreatedBoltCan Be
IdentifiedBySix LinesOnTheBoltHead
TO SHARPEN BLADE
NOTE: We do not recommend sharpen-
ing blade, but if you do, be sure the blade
is balanced.
Care should be taken to keep the blade
balanced. An unbalanced blade will
cause excessive vibration and eventual
damage to mower and engine.
The blade can be sharpened with a file
or on a gdnding wheel. Do not attempt
to sharpen while it ison the mower.
To check blade balance, you will need
a 5/8" diameter steel bolt, pin, or a cone
balancer. (When using a cone bal-
ancer, follow the instructionssupplied
with balancer).
NOTE: Do not use a nail for balancing
blade. The lobes of the center hole may
appear to be centered, butare not.
Slide blade onto an unthreaded portion
of the steel boltor pin and holdthe bolt
or pin parallel with the ground. If blede
is balanced, it should remain in a
horizontal position. If either end of the
blade moves downward, sharpen the
heavy end until the blade is balanced.
CenterHole J
19 _d