Husqvarna 155 - Manual (Page 53)

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Problem Procedure
Engine will not start. • Fuel tank empty.
• Spark Plug defective.
• Spark Plug connection defective.
• Dirt in carburettor or fuel pipe.
Starter does not pull round engine. • Battery flat.
• Bad contact between cable and battery terminal.
• Lift lever for cutting unit in wrong position.
• Main fuse blown. The fuse is placed in front of the
battery, under the battery cover.
• Ignition lock faulty.
• Gear shift/hydrostat pedal not in neutral.
• Hydrostat pedals not in the neutral position
Engine does not run smoothly. • Wrong gear, too high.
• Carburettor incorrectly set.
• Air filter clogged.
• Fuel tank vent blocked.
• Ignition setting defective.
• Dirt in fuel pipe.
• Choking or incorrectly adjusted throttle cable
Engine seems to have no power. • Air filter clogged.
• Spark Plug defective.
• Dirt in carburettor or fuel pipe.
• Carburettor incorrectly set.
• Choking or incorrectly adjusted throttle cable
Engine overheats. • Engine overloaded.
• Air intake or cooling flanges blocked.
• Fan damaged.
• Too little or no oil in engine.
• Ignition defective.
• Spark Plug defective.
Battery does not charge. • One or more cells faulty
• Bad contact between battery terminals and cables.
Machine vibrates. • Blades are loose.
• Engine is loose.
• Imbalance on one or more blades, resulting from
damage or inferior balancing after sharpening.
Uneven mowing. • Blades blunt.
• Cutting unit skew.
• Long or wet grass.
• Grass blockage under hood.
• Different tyre pressures on right and left sides.
• Over-speeding
• Drive belts slipping.
TROUBLE SHOOTING SCHEDULE