Off- Season Storage; Troubleshooting - Yard-Man 435 Operator's Manual

21” rear & side discharge mulching lawn mower
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SECTION 9: OFF-SEASON STORAGE
Prepare your lawn mower for storage at the end of the
season or if the unit will not be used for 30 days or
more. Store the mower in a clean, dry area.
Gasoline
Do not store gasoline from one season to another.
Gasoline, stored more than one month, may affect
engine performance.
Replace your gasoline can if it starts to rust. Rust
and/or dirt in the gasoline will cause problems.
Engine
Follow recommendations in the accompanying
engine manual for off-season storage of the
engine.
Mower
NOTE: If storing the mower in an unventilated or metal
storage shed, make sure to rustproof the equipment
with a light oil or silicone.
SECTION 10: TROUBLE-SHOOTING GUIDE
Problem
Engine fails to start
1.
2.
3.
4.
5.
6.
Engine runs erratic
1.
2.
3.
4.
5.
Engine overheats
1.
2.
Occasional skip at high
1.
speed
Idles poorly
1.
2.
Excessive vibration
1.
2.
3.
Fails to mulch grass
1.
2.
3.
Uneven cut
1.
2.
NOTE: For repairs beyond the minor adjustments listed above, contact your nearest authorized service dealer.
Possible Cause
Blade control handle disengaged
Spark plug wire disconnected
Fuel tank empty, or stale fuel
Blocked fuel line
Faulty spark plug
Engine flooded
Spark plug wire loose
Blocked fuel line or stale fuel
Vent in gas cap plugged
Water or dirt in fuel system
Dirty air cleaner
Engine oil level low
Air flow restricted
Spark plug gap too close
Spark plug fouled, faulty, or gap too wide
Dirty air cleaner
Cutting blade loose or unbalanced
Bent cutting blade
Bent engine crankshaft
Wet grass
Excessively high grass
Dull blade
Wheels not in same height position
Dull blade
Store unit in a clean, dry area. Do not store next to
corrosive materials, such as fertilizer or rocksalt.
Clean underside of the mower according to
instructions on page 12.
NOTE: We do not recommend the use of pressure
washers or garden hose to clean your unit. They may
cause damage to electric components, spindles,
pulleys, bearings or the engine. The use of water will
result in shortened life and reduce serviceability.
Lubricate the mower as instructed on page 12.
You can fold your mower's handle for convenience
of storage.
Inspect and replace/sharpen blade, if required.
Refer to page 13.
1.
Engage blade control handle
2.
Connect wire to spark plug
3.
Fill up tank with fresh gasoline
4.
Clean fuel line
5.
Clean, adjust gap, or replace
6.
Wait a few minutes and start again.
1.
Connect and tighten spark plug wire.
2.
Clean fuel line, fill tank with clean, fresh
gasoline.
3.
Clear vent.
4.
Drain fuel tank. Refill with fresh fuel.
5.
Clean air cleaner. Refer to engine manual.
1.
Fill crankcase with proper oil.
2.
Clean lawn mower engine.
1.
Adjust gap to.030 inches.
1.
Reset gap or replace spark plug.
2.
Clean air cleaner.
1.
Tighten blade and adapter, balance blade.
2.
Replace blade.
3.
Contact your nearest service center
1.
Wait until grass is dry to cut.
2.
Mow once at a high cutting height, then
mow again at desired height.
3.
Sharpen or replace blade.
1.
Reposition all wheels at same height.
2.
Sharpen or replace blade.
15
Corrective Action

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