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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).
13. Blown fuse (if equipped).
13. Replace fuse.
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.
Starter rope
1. Engine flywheel brake is on
1. Depress control bar to
hard to pull
when control bar is released.
upper handle before
pulling starter rope.
2. Bent engine crankshaft.
2. Contact a qualified service
center.
3. Blade adapter broken.
3. Replace blade adapter.
4. Blade dragging in grass.
4. Move lawn mower to cut
grass or to hard surface.
PROBLEM
CAUSE
CORRECTION
See appropriate section in manual unless directed to an authorized
Service Center.
TROUBLESHOOTING
Содержание PR450N20S
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