Craftsman 917.27631 owner manual Engine valves out of adjustment

TROUBLESHOOTING CHART:

See appropriate section in manual unless directed to Sears service center

PROBLEM	CAUSE
Lossofpower	,	Cutting too much grass/too

fast.

,Throttle in "CHOKE" position.

3.Build-up of grass, leaves and trash under mower.

,Dirty air filter.

5.Low oil level/dirty oil.

6.Faulty spark plug.

7.Dirty fuel filter.

8.Stale or dirty fuel.

9.Water in fuel.

10.Spark plug wire loose.

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.

Excessive1. Worn, bent or loose blade. vibration

2.Bent blade mandrel.

3.Loose/damaged part(s).

Engine dies when , Reverse operation system

tractor is shifted(ROS) is not "ON" while

into reversemower or other attachment

is engaged.

3ORRECTION

1.Raise cutting height/reduce speed.

2.Adjust throttle control.

3.Clean underside of mower housing.

4.Clean/replace air filter.

5.Check oil level/change oil.

6.Clean and regap or change spark plug.

7.Replace fuel filter.

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

9.Empty fuel tank and carbure- tor, refill tank with fresh gaso line and replace fuel filter.

10.Connect and tighten spark 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.

1.Replace blade. Tighten blade bolt.

2.Contact a Sears or other qualified service center.

3.Tighten loose part(s). Replace damaged parts.

1.Turn ignition key to ROS "ON" position. See Operation section.

Engine

continues

1.

Faulty

operator-safety

to run

when

oper-

presence

control

system.

ator

leaves

seat

with

attachement

clutch

engaged

Poor

cut - uneven

,

Worn,

bent

or

loose

blade.

2.

Mower

deck

not

level.

3.

Buildup

of

grass,

leaves,

and

trash

under

mower.

4.

Bent

blade

mandrel.

5.

Clogged mower

deck vent

holes

from

buildup

of

grass,

leaves,

and

trash

around

mandrels.

. Check wiring, switches and

connections. If not contact a Sears or other with quali- fied service center.

1.Replace blade. Tighten blade bolt.

2.Level mower deck.

3.Clean underside of mower housing.

4.Contact a Sears or other qualified service center.

5.Clean around mandrels to open vent holes.

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