Craftsman 917.270760 - Manual (Page 30)

TROUBLESHOOTING CHART
PROBLEM CAUSE CORRECTION
Loss of power • Build-up of grass, leaves • Clean underside of mower
(Continued) and trash under mower. housing.
• Dirty air filter. • Clean/replace air filter.
• Low oil level/dirty oil. • Check oil level/change oil.
• Faulty spark plug. • Clean and regap or change
spark plug.
• Dirty fuel filter. • Replace fuel filter.
• Stale or dirty fuel. • Drain fuel tank and refill with
fresh gasoline.
• Water in fuel. • Drain fuel tank and carbure­
tor, refill tank with fresh
gasoline and replace fuel
filter.
• Spark plug wire loose. • Connect and tighten spark
plug wire.
• Dirty engine air screen/fins. • Clean engine air screen/
fins.
♦ Diity/clogged muffler. •Clean/replace muffler.
• Loose or damaged wiring. • Check all wiring.
• Carburetor out of • See “To Adjust Carburetor"
adjustment. in Sen/ice Adjustments
section.
• Engine valves out of • Contact an authorized
adjustment. service center/department.
Excessive • Worn, bent or loose blade. • Replace blade.
vibration Tighten blade bolt.
• Bent blade mandrel. • Replace blade mandrel.
• Loose/damaged part(s). • Tighten loose part{s).
Replace damaged parts.
Engine continues • Faulty operator-safety • Check wiring, switches and
to run when presence control system. connections. If not corrected,
operator leaves contact an authorized
seat with
attachment
clutch engaged service center/department.
Poor cut - uneven • Worn, bent or loose blade. • Replace blade. Tighten
blade bolt.
• Mower deck not level. • Level mower deck.
• Buildup of grass, leaves, • Clean underside of mower
and trash under mower. housing.
• Bent blade mandrel. • Replace blade mandrel.
• Clogged mower deck vent • Clean around mandrels to
from build-up of grass,
leaves, and trash around
mandrels.
open vent holes.
Mower blades will • Obstruction in clutch • Remove obstruction.
not rotate mechanism.
• Replace mower drive belt. • Wom/damaged mower
drive belt.
• Frozen idler pulley. • Replace idler pulley.
• Frozen blade mandrel. • Replace blade mandrel.
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