Troubleshooting, Troubleshooting points, Trouble cause correction – Husqvarna ST724 User Manual

Page 28

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Defective spark plug.

Water or dirt in fuel system.

Blocked fuel line or empty gas
tank or stale gasoline.

Unit running on CHOKE.

Water or dirt in fuel system.

Carburetor out of adjustment.

Loose parts; damaged impeller.

Drive belt loose or damaged.

Incorrect adjustment of traction
drive cable.

Worn or damaged friction wheel.

Auger drive belt loose or
damaged.

Auger control cable not adjusted
correctly.

Shear bolt broken.

Discharge chute clogged.

Foreign object lodged in auger.

Replace defective plug.

Use carburetor bowl drain to flush and refill with fresh fuel.

Clean fuel line; check fuel supply; add fresh
gasoline.

Set choke lever to RUN position.

Use carburetor bowl drain to flush and refill with fresh fuel.

Adjust carburetor.

Stop engine immediately and disconnect spark plug wire.
Tighten all bolts and make all necessary repairs. If vibration
continues, have the unit serviced by a competent repairman.

Replace drive belt.

Adjust traction drive cable.

Replace friction wheel.

Adjust auger drive belt; replace if damaged.

Adjust auger control cable.

Replace shear bolt.

Stop engine immediately and disconnect spark plug wire.
Clean discharge chute and inside of auger housing.

Stop engine immediately and disconnect spark plug wire.
Remove object from auger.

Difficult starting

Engine runs erratic

Engine stalls

Engine runs erratic;
Loss of power

Excessive vibration

Unit fails to propel
itself

Unit fails to discharge
snow

TROUBLE

CAUSE

CORRECTION

TROUBLESHOOTING POINTS

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