TROUBLESHOOTING CHART:

See appropriate section in manual unless directed to Sears service center

PROBLEM

 

CAUSE

 

 

 

 

 

CORRECTION

 

Poor cut - uneven

1

Worn,

bent

or loose

blade.

 

1

Replace

blade.

Tighten

blade bolt.

cutting

2

Mower

deck

not

level.

 

2

Level

mower

deck.

 

 

 

 

 

3

Buildup

of grass,

leaves,

and

3

Clean

underside

of mower

 

 

trash

under

mower.

 

 

 

housing.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

Bent

blade

mandrel.

 

 

4

Contact

a Sears

or other

 

 

 

 

 

 

 

 

 

 

 

qualified

service

center.

 

 

5

Clogged

mower

deck

vent

from

 

Clean

around

mandrels

to

 

 

build-up

of grass,

leaves,

and

 

open

vent holes.

 

 

 

 

trash

around

mandrels.

 

 

 

 

 

 

 

 

Mower blades will

1

Obstruction

in clutch

mechanism.

1

Remove

obstruction.

 

not rotate

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Poor grass

discharge

2

Worn/damaged

mower

drive

belt.

2

Replace

mower

drive

belt.

 

3

Frozen

 

idler

pulley.

 

 

 

3

Replace

idler

pulley.

 

 

 

4

Frozen

 

blade

mandrel.

 

 

4

Contact

a

Sears or other

 

 

 

 

 

 

 

 

 

 

 

 

qualified

service

center.

 

 

1

Engine

 

speed too slow.

 

1

Place

throttle

control

in "FAST"

 

 

 

 

 

 

 

 

 

 

position.

 

 

 

 

 

 

 

2

Travel

speed

too

fast.

 

 

2

Shift

to

slower

 

speed.

 

 

 

3

Wet grass.

 

 

 

 

 

3

Allow

grass

to

dry before

mowing.

4

Mower

 

deck

not

level.

 

 

4

Level

mower

deck.

 

 

 

5

Low/uneven

tire

air

pressure.

 

5

Check

 

tires

for

proper

PSI.

 

6

Worn,

bent or loose

blade.

 

6

Replace/sharpen

blade.

Tighten

 

 

 

 

 

 

 

 

 

 

blade

bolt.

 

 

 

 

 

 

7

Buildup

of grass,

leaves and

 

7

Clean

underside

of mower

 

 

trash

under

mower.

 

 

 

 

housing.

 

 

 

 

 

 

 

8

Mower

 

drive

belt

worn.

 

 

8

Replace

mower

drive

belt.

 

9

Blades

 

improperly

 

installed.

 

9

Reinstall

blades

sharp

edge

down.

10

Improper

blades

used.

 

 

10

Replace

with

blades

listed

in

 

 

 

 

 

 

 

 

 

 

this manual.

 

 

 

 

 

11

Clogged

mower

deck

vent holes

11

Clean

around

mandrels

to

 

 

from buildup

of grass,

leaves,

and

 

open

vent

holes.

 

 

 

 

trash

around

mandrels.

 

 

 

 

 

 

 

 

 

 

 

 

Headlight(s) not

1

Light switch is "OFF".

1

Turn light

switch

"ON".

working

2

Bulb(s) or lamp(s) burned out.

2

Replace

bulb(s)

or lamp(s).

(if so equipped)

 

 

 

 

 

 

Battery will not charge

3

Faulty

light

switch.

3

Check/replace

light switch.

4

Loose

or damaged wiring.

4

Check

wiring

and connections.

5

Blown

fuse.

 

5

Replace

fuse.

 

1

Bad battery

cell(s).

1

Replace

battery.

2

Poor

cable

connections.

2

Check/clean

all connections.

3

Faulty

regulator (if so equipped).

3

Replace

regulator.

4

Faulty

alternator.

4

Replace

alternator.

32

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Craftsman 917.28990, YT 4500 manual Poor cut uneven, Cutting, Mower blades will, Discharge, Working
Page 31 Page 33

YT 4500, 917.28990 specifications

The Craftsman 917.28990 YT 4500 is a robust lawn tractor that combines power and performance with comfort and ease of use, making it an ideal choice for homeowners with medium to large yards. With its impressive features and innovative technologies, this machine stands out in the competitive landscape of lawn care equipment.

At the heart of the Craftsman YT 4500 is a powerful 24 HP Kohler engine. This engine delivers reliable performance, ensuring that the tractor can tackle a variety of tasks from mowing to hauling and even towing. With a 42-inch cutting deck, the YT 4500 effectively maneuvers through tight corners and delivers a clean, professional-looking cut on your lawn.

One of the standout features of the Craftsman YT 4500 is its hydrostatic transmission, which provides effortless control and smooth operation. This technology allows users to change speed and direction easily without the need for constant gear shifting, enhancing the user experience, especially over extended periods of use.

The tractor also boasts a comfortable high-back seat with adjustable features, providing ample support during long mowing sessions. The ergonomically designed steering wheel allows for easy maneuverability, making it suitable for users of all sizes.

To improve efficiency, the YT 4500 is equipped with a cutting height adjustment feature, allowing users to select from multiple cutting heights to accommodate various grass types and conditions. This flexibility ensures optimal results year-round.

Additionally, the Craftsman 917.28990 includes a mulching feature, which finely chops grass clippings and returns them to the lawn as natural fertilizer, promoting a healthier lawn while reducing the need for bagging clippings. For those requiring extra versatility, the tractor is compatible with various attachments, including snow plows, baggers, and more, enabling year-round tasks.

Overall, the Craftsman 917.28990 YT 4500 is an excellent investment for any homeowner seeking reliability, comfort, and versatility in a lawn tractor. Its combination of power, advanced technologies, and thoughtful design ensures that lawn care can be both efficient and enjoyable. Whether you are tackling a simple mow or an extensive landscaping project, the YT 4500 proves to be a valuable addition to your outdoor equipment lineup.
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