Craftsman 917.289070, 917.289072 brakemustbeservicedSeeTOCHECK, Tires, Presence, System And

TRACTOR	CHECK REVERSE	OPERATION	(ROS)
	SYSTEM
Alwaysobservesafetyruleswhenperforming
anymaintenance.	When the engine is running with the ignition
BRAKEOPERATION	switch in the engine	"ON" position	and the
Iftractorrequiresmorethanfive(5)feetto	attachment clutch	engaged, any attempt
stopathighestspeedinhighestgearona	by the operator to drive in reverse		should
level,dryconcreteorpavedsurface,then	shut off the engine.
brakemustbeserviced(See"TOCHECK.	When the engine is running with the ignition

BRAKE"in theServiceandAdjustments switch in the ROS "ON" position and the

sectionofthismanual).

attachment

clutch engaged, any attempt

TIRES

by the operator to drive

in reverse should

• Maintain proper

air

pressure in

all

tires

NOT shut off the engine.

(See the sides of tires for proper

PSI).

BLADE

CARE

Keep tires free of gasoline, oil, or insect

For best results mower blades must be sharp.

control chemicals which can harm rubber.

Replace worn, bent or damaged blades.

Avoid stumps, stones, deep ruts, sharp

_,

CAUTION"

Use only a replacement

objects and other hazards that may cause

blade approved by the manufacturer of your

tire

damage.

tractor. Using a blade not approved by the

NOTE: To seal tire punctures and prevent

manufacturer of your tractor is hazardous,

flat tires due to slow leaks, tire sealant may

could damage your tractor and void your

be purchased from your local parts dealer.

warranty.

Tire sealant also prevents tire dry rot and

BLADE

REMOVAL

corrosion.

1. Raise mower to highest position to allow

OPERATOR

PRESENCE

SYSTEM AND

access to blades.

NOTE: Protect your hands with gloves and/

REVERSE OPERATION

SYSTEM

(ROS)

or wrap blade with

heavy

cloth.

Be sure

operator

presence

and

reverse

2.

Remove blade

bolt by

turning

counter-

operation

systems

are

working properly. If

clockwise.

your tractor does not function

as described,

3.

install new blade with stamped

"GRASS

repair

the problem

immediately.

SIDE"

facing the ground.

The

engine

should

not start unless

the

iMPORTANT:

To ensure proper assembly,

brake

pedal

is fully

depressed,

and

the

center hole in blade must align with star on

attachment clutch control is in the disen-

mandrel

assembly.

gaged

position.

4.

install

and

tighten blade bolt

securely

CHECK

OPERATOR

PRESENCE

(45-55

Ft. Lbs. torque).

iMPORTANT: Special blade bolt is heat

SYSTEM

treated.

When the engine is running, any attempt

by the

operator

to leave the seat

without

STAR

first

setting the parking

brake should

shut

CENTER

HOLE

\

off the engine.

When the engine is running and the at-

tachment clutch is engaged, any attempt

by the operator to leave the seat should

shut

off the

engine.

BLADE BOLT

&J

MANDREL

The attachment clutch should never oper-

(SPECiAL)_

_j

ASSEMBLY

ate unless the operator is in the seat.

ROS "ON" Position Engine "ON" Position

(Normal Operating)

18