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9
MAINTENANCE
Engine air cleaner
Refer to the engine owner’s manual for detailed maintenance instructions. The engine air cleaner
elements must be serviced after every 25 hours of normal mowing. The elements must be serviced
more regularly if the mower is used in dusty conditions. Replace immediately if the element is
damaged.
Spark plug
Refer to the engine owner’s manual for detailed maintenance instructions. For best results, remove
the spark plug every 50 hours for gap checking and replace every 100 hours of use. Replace the spark
plug at any time if it is found that the electrodes are pitted or burned or the porcelain cracked. For
replacement refer to engine owner’s manual for correct spark plug.
Muffler
Check the condition of the muffler periodically for rust and cracks. Replace if found to be damaged
as this can lead to increased exhaust noise. Replace only with a genuine original equipment part.
Blades
Check the condition of the blades and central fasteners at regular intervals, or after striking a solid
object, or if the mower begins to vibrate abnormally. The blades with use, will lose their sharp edge
and the quality of the grass finish will deteriorate. When this happens, all the blades should be
removed and replaced with a new set of blades. Always use genuine replacement blades and only
replace blades in sets to maintain balance.
CAUTION
Always ensure the engine is stopped
and the spark plug lead is removed
before attempting any maintenance
on the mower. Secure the mower
safely when titled upwards to access
the underside
Warning
Before carrying out any maintenance on the mower remove the spark plug lead from
the spark plug to prevent accidental starting
Cutting Assembly
•
With the engine stopped, remove the spark plug lead and grass catcher or mulch plug.
•
Set the height of cut lever to the high cut position, and fold the handle bars.
•
Tilt the mower so the spark plug is up.
•
Inspect the cutting assembly for damage and wear.
•
Check the disc retaining bolts. Tighten the centre bolt to 5762Nm and the three concentric bolts
to 8-11Nm.
•
Return the mower to its normal position and re-attach the spark plug lead
Blade Change
•
with the engine stopped, spark plug lead and grass catcher or mulch plug removed.
open the discharge flap and prop in the open position.
•
set the mower to the high cut position and fold the handle
bar forward.
•
Rotate the cutting assembly carefully to access the blade
retaining bolts. refer fig 16
•
using gloves and a suitable spanner, remove the blade assembly.
•
Retain the “D” plates and discard the blades and fasterners.
NB. Mowers fitted with a circular cutting disc must be fitted with a “D”plate
•
Fit new blades and fasten in the correct order. refer fig 16
Cleaning
To ensure safe operation and long life it is recommended to clean the mower after every use. This will
prevent corrosion, overheating and fire risk while ensuring ultimate performance.
Cleaning the underside of the mower
Place the mower outdoors on a flat surface.
• Set the cut height to maximum.
• With the engine stopped, remove the grass catcher or mulch plug and lift open the discharge flap.
• Use a garden hose to wash out all the grass clippings.
• Inspect the underside and repeat the cycle if still not clean.
Cleaning the upper side of the mower
•
Use a dry cloth or soft brush to remove all loose clippings.
•
Use a damp cloth with mild detergent to clean away oil or other grime.
•
Wash the grass catcher and/or mulch plug separately from the mower with a hose.
Wash all clippings out of the inside, outside and from the grass catcher mesh.
•
Let the mower dry before storing.
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