Poulan 172777 manual Problem, Cause, Correction, Does not start, Loss of power, Poor cut, uneven

Models: 172777

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which allows condensation to form and will cause your unit to rust.

IMPORTANT: Never cover mower while engine and exhaust areas are still warm.

PROBLEM CAUTION: Never store the lawn mower with gasoline in the tank inside a building where fumes may reach an open flame or spark. Allow the engine to cool before stor- ing in any enclosure.

TROUBLESHOOTING - See appropriate section in this manual unless directed to an authorized service center.

PROBLEM

 

CAUSE

CORRECTION

Does not start

1.

Dirty air filter.

1.

Clean/replace air filter.

 

2.

Out of fuel.

2.

Fill fuel tank.

 

3.

Stale fuel.

3.

Drain fuel tank and refill tank

 

 

 

 

with fresh, clean gasoline.

 

4.

Water in fuel.

4.

Drain fuel tank and refill tank

 

 

 

 

with fresh, clean gasoline.

 

5.

Spark plug wire is

5.

Connect wire to plug.

 

 

disconnected.

 

 

 

6.

Bad spark plug.

6.

Replace spark plug.

 

7.

Loose blade or broken

7.

Tighten blade bolt or

 

 

blade adapter.

 

replace blade adapter.

 

8.

Control bar in released

8.

Depress control bar to

 

 

position.

 

handle.

 

9.

Control bar defective.

9.

Replace control bar.

 

10. Fuel valve lever (if so

10. Turn fuel valve lever

 

 

equipped) in OFF position.

 

to the ON position.

 

11. Weak battery (if equipped).

11. Charge battery.

 

12. Disconnected battery

12. Connect battery to engine.

 

 

connector (if equipped).

 

 

 

 

 

 

 

Loss of power

1.

Rear of lawn mower

1.

Raise cutting height.

 

 

housing or cutting blade

 

 

 

 

dragging in heavy grass.

 

 

 

2.

Cutting too much grass.

2.

Raise cutting height.

 

3.

Dirty air filter.

3.

Clean/replace air filter.

 

4.

Buildup of grass, leaves,

4.

Clean underside of mower

 

 

and trash under mower.

 

housing.

 

5.

Too much oil in engine.

5.

Check oil level.

 

6.

Walking speed too fast.

6.

Cut at slower walking speed.

 

 

 

 

 

Poor cut –

1.

Worn, bent or loose blade.

1.

Replace blade. Tighten

uneven

 

 

 

blade bolt.

 

2.

Wheel heights uneven.

2.

Set all wheels at same height.

 

3.

Buildup of grass, leaves

3.

Clean underside of

 

 

and trash under mower.

 

mower housing.

 

 

 

 

 

Excessive

1.

Worn, bent or loose blade.

1.

Replace blade. Tighten

vibration

 

 

 

blade bolt.

 

2.

Bent engine crankshaft.

2.

Contact a qualified service

 

 

 

 

center.

 

 

 

 

 

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Poulan 172777 manual Problem, Cause, Correction, Does not start, Loss of power, Poor cut, uneven, Excessive, vibration