Craftsman 917.377631 - Manual (Page 16)

TROUBLE SHOOTING
PROBLEM CAUSE CORRECTION
Will not start • Dirty air filter. • Clean/replace air filter.
• Out of fuel. • Fill fuel tank.
• Stale fuel. • Drain tank and refill with fresh
dean fuel.
• Water in fuel. • Drain fuel tank and carburetor
and refill tank with fresh gaso­
line. -
• Spark plug wire is dis-.
connected
• Connect wire to plug.
• Bad spark plug. • Replace spark plug.
• Loose blade or broken
blade adapter.
• Tighten blade bolt or replace
blade adapter.
• Control bar in released
position
• Depress control bar to handle.
• Control bar defective • Replace control bar.
• Weak battery • Charge battery.
• Disconnected battery
connector.
• Connect battery to engine.
Loss of power • Rear of lawn mower
housing/blade dragging in
heavy grass.
• Set in “Higher Cut” position. ~
• Cutting too much grass. • Set in “Higher Cuf position.
• Dirty air filter. • Clean/replace air filter.
• Buildup of grass, leaves
and trash under mower.
• Clean underside of mower
housing.
• Too much oil in engine. • Check oil level.
• Walking speed too fast. • Cut at slower walking speed.
Poor cut - uneven • Worn, bent or loose blade. • Replace blade. Tighten blade
bolt.
• Wheel heights uneven. • Set all wheels at same height.
• Buildup of grass, leaves,
and trash under mower.
• Clean underside of mower
housing.
Excessive vibra­
tion
• Worn, bent or loose blade. • Replace blade. Tighten blade
bolt.
• Bent engine crankshaft. • Contact an authorized service
center/department.
Starter rope hard
to puii • Engine flywheel brake is
on when control bar is
released.
• Depress control bar to upper
handle before pulling starter
rope.
• Bent engine crankshaft • Contact an authorized service
center/department.
• Blade adapter broken. • Replace blade adapter.
• Blade dragging in grass. • Move lawn mower to cut grass
or to hard surface to start
engine.
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