Iseki SW621-E - Troubleshooting Guide; Engine and Mowing Problems

TROUBLESHOOTING
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When a problem cannotbe solved by following the instructions found in this manual, nevertake a chance but consult your dealer.
Troubles
Presumable causes
Remedies
The
engine cannot be
o There is no fuel.
o Supply with fuel.
started.
o The throttle lever is in the STOP
o Turn the lever to the START
position
(~).
position (lSI).
0
The spark plug cap is not snapped
o Snap it in securely.
in positively, or is disconnected.
o A defective spark plug or improper
o Replace it or correct the electrode gap.
electrode gap
o The plug is wet with fuel.
o Dry the plug.
o The air cleaner is clogged.
o Clean the air cleaner.
o The START position is improperly set. o Adjust the throttle wire (p. 44).
The engine is hard to
o Contaminated fuel o Replace the olde fuel with new.
start with poor output.
o The air cleaner is clogged.
o Clean the air cleaner.
o Water deposit is in the fuel tank and o Replace the fuel.
carburetor
o The carburetor is clogged. o Consult your dealer.
The
engine is over-heated.
o Improper spark plug electrode gap o
Correct the electrode gapor replace plug.
o The air cleaner is clogged.
o Clean the air cleaner.
o The engine oil level is low. o Replenish.
Excessive
machine
o Broken or unbalanced blade o Replace the blade.
vibration
o Loose blade tightening bolts
oRe-tighten the bolts.
The engine
does not stop.
o Improperly set engine stop position o Adjust the throttle wire.
Improper discharge of
o The grass is wet.
o Wait until the grass dries.
mowed grass
o The grass is too tall.
oRe-set cutting height higher and try
mowing in two steps.
o Travelling speed is too high. o Slow down.
o Engine speed is too low o Set the engine at full throttle.
o Worn blade
o Replace the blade.
o The blade is installed upside down. oRe-install it correctly.
Grass is n6t mown.
o Improper cutting height
o Correct cutting height.
o Engine speed is too low
o Set the engine at full throttle.
o Worn blade
o Replace the blade.
Uneven
mowing
o Improper cutting height o Correct cutting height.
o Travelling speed is too high. o Slow down.
o Worn blade
o Replace the blade.
o The grass is too tall.
oRe-set cutting height higher and try
mowing in two steps.
Turf is peeled off partially.
o Cutting height is too low.
o Increase the cutting height.
o Excessive ground undulation
o Change mowing direction.
o Increase the cutting height.
Mowed
grass is scattered
o The blade is worn.
o Replace the blade.
on
both sides.
o The collector is clogged.
o Wash the collector.
o The collector is full.
o Empty the collector.
o Engine speed is too low.
o Set the engine at full throttle.
o The grass is too wet.
o Wait until the grass dries.
The
travel-clutch or blade-
o Improper wire adjustment
oRe-adjust wires. (p. 46)
brake-clutch does not work.
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