Craftsman 917.28746 owner manual Problem Cause Correction

TROUBLESHOOTING CHART:

TROUBLESHOOTING CHART:

See appropriate

section in manual unless directed to Sears service center

See appropriate section in manual unless directed to Sears service center

PROBLEM

CAUSE

CORRECTION

PROBLEM CAUSE CORRECTION

Loss of poWer (continued)

6.	Faulty	spark	plug.
7.	Dirty fuel filter.
8.	Stale	or dirty	fuel.
9.	Water	in fuel.
10. Spark plug wire loose.

6.Clean and regap or change spark plug.

7.Replace fuel filter.

8.Empty fuel tank and refill tank with fresh, clean gasoline.

9.Emptyfuel tank and carbure- tor, refill tank with fresh gas-

olineand replace fuel filter. to. Connect and tighten spark

Mower blades will 1.	Obstruction		in clutch
not rotate	mechanism.
2.	Worn/damaged mower drive
	belt.
3.	Frozen	idler	pulley.
4.	Frozen	blade mandrel.
5.	Mower	belt off engine pulley.

1.Removeobstructioil.

2.Replace mower drive belt.

3.Replace idler pulley.

4.Contact a Sears or other qualified service center.

3. Install belt on engine pulley.

11.	Dirty engine	air screen/fins.
12.	Dirty/clogged	muffler.
13. Loose or damaged wiring.
14. Carburetor out of adjustment.
15. Engine valves out of
	adjustment.

plug wire.

11.Clean engine air screen/fins.

12.Clean/replace muffler.

13.Check all wiring.

14.See "To Adjust Carburetor"

in Service and Adjustments section.

15.Contact a Sears or other qualified service center.

Poor grass discharge

1.	Engine speed too slow.
2.	Travel speed	too fast.
3.	Wet grass.
4.	Mower not level.
5.	Low/uneven	tire air pressure.
6.	Worn, bent or loose blade.

1. Place throttle control in
	"FAST" position.
2.	Shift to slower speed.
3. Allow grass to dry before
	mowing.
4.	Level mower.
5.	Check tires for proper air
	pressure.
6.	Replace/sharpen blade .

Excessive	1.	.
		Worn, bent or loose blade.
vibration	2.	Bent blade mandrel.
	3.	Loose/damaged partes).

1.Replace blade. Tighten blade bolt.

2.Contact a Sears or other qualified service center.

3.Tighten loose partes). Replace damaged parts.

7.	Buildup of grass, leaves and
	trash under		mower.
8.	Mower	drive	belt worn.
9.	Blades	improperly installed.
10. Improper blades used.

	Tighten	blade bolt.
7. Clean underside of mower
	housing.
8.	Replace	mower	drive	belt.
9.	Reinstall	blades	sharp	edge
	down.
10. Replace with blades listed

Engine dies when tractor is shifted into reverse

1. Reverse operation system

(ROS) is not "ON" while

mower or other attachment

is engaged.

1. Turn ignition key to

ROS "ON" position.

See Operation section.

11. Clogged mower vent

holes from buildup of grass,

leaves, and trash around

mandrels.

in this	manual.
11. Clean around mandrels to
open	vent holes.

Engine continues to run when operator leaves seat with attachment clutch engaged

1. Faulty operator-safety

presence control system.

1. Check wiring, switches and

connections. If not corrected,

contact a Sears or other

qualified service center.

Headlight(s) not working

(if so equipped)

1.	Ught switch	is "OFF".
2.	Bulb(s) or lamp(s) burned out.
3.	Faulty light	switch.
4.	Loose or damaged wiring.
5.	Blown fuse.

1.Turn light switch "ON".

2.Replace bulb(s) or lamp(s).

3.Check/replace light switch.

4.Check wiring and connections.

5.Replace fuse.

Poor cut. uneven	1.	Worn,	bent or loose blade.	1. Replace blade. Tighten blade
	2.	Mower	deck not level.	bolt.
				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 5. Clean around mandrels to

from build-up of grass, leaves,	open vent holes.
and trash around mandrels.

Battery will not charge

Loss of drive

1.	Bad battery		cell(s).
2.	Poor cable	connections.
3.	Faulty regulator
	(if so equipped).
4.	Faulty alternator.
1.	Freewheel	control in
	"disengaged"		position.
2. Motion drive belt worn,
	damaged,	or broken.
3.	Air trapped	in transmission
	during shipment or servicing.

.

1.Replace battery.

2.Check/clean all connections.

3.Replace regulator.

4.Replace alternator.

1.Place freewheel control in "engaged" position.

2.Replace motion drive belt.

3.Purge transmission.

Engine "backfires' when turning engine "OFF"

1. Engine throttle control not set 1. Move throttle control

between half and full speed	between	half and full speed
(fast) position before stopping	(fast) position before
engine.
	stopping	engine.

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