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10
Troubleshooting
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Some uncut or poorly cut strands
Cutting cylinder is partially out of
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contact with the bottom blade.
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Cutting cylinder is in heavy contact
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Height of cut is too high.
Lower height of cut setting.
Cutting edges of cutting cylinder/bottom
blade are rounded.
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cut setting.
Excessive bottom blade wear.
Bottom blade in heavy ground contact.
Raise height of cut.
Cutting edges of cutting cylinder/
bottom blade are rounded.
Cutting cylinder is in heavy contact
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Damaged cutting cylinder or bottom blade.
Re-adjust cutting cylinder to bottom
Re-adjust cutting cylinder to bottom
Regrind cutting edges.
Regrind or replace as necessary.
Re-adjust cutting reel to bottom
Regrind cutting edges.
11
Troubleshooting
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runs erratically or looses power.
Fuel tank empty or fuel shut off valve closed. Fill tank with recommended fuel grade
and open fuel shut-off valve.
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Air cleaner element is dirty.
Service or replace air cleaner.
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Spark plug cable disconnected.
Refit cable to spark: plug.
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Spark plug gap incorrect.
Replace damaged spark plug.
Refer to Engine Manual.
Carburettor is flooded with fuel.
Move throttle to ‘Stop’ position pull the
starter cord 5–6 times, move throttle to
‘Run’ and start engine.
Dirt water or stale fuel in the tank.
Drain and clean fuel tank, Refill wIth
clean fresh fuel before starting.
Vent hole in the filler cap is blocked.
Clean or replace fuel cap.
Engine misfires at high speed
Spark plug gap too small.
Refer to Engine Manual.
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Cooling air flow restricted
Remove debris from around engine.
Incorrect spark plug fitted
Refer to Engine Manual.
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Engine vibrates and/or is noisy
Worn or damaged bearing(s)
Remove and inspect suspect bearings,
replace if necessary.
Worn or damaged drive chains
Remove and inspect suspect chains
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Oil Leaks from silencer or air cleaner
Mower tipped or handled incorrectly
Check oil level, air cleaner and spark
plug and correct as necessary.
Should faults persist, consult your Authorised Mountfield Service Agent.
Engine oil sump over filled
Check oil level and drain excess oil.