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MOWER MAINTENANCE
Cutterblade Sharpening
A slightly worn cutterblade may be re-sharpened. Both blade
edges must be sharpened equally to ensure balance. Sharpen
the cutterblade every 25 mowing hours or more frequently if
conditions require. Remove the cutterblade from the mower and
clean using a brush and water.
Inspect the cutterblade for signs of damage.
Sharpen both cutting edges with a fl at fi le to restore
performance.
(Refer fi g.30)
Ensure that the cutterblade is balanced. Use a screw
driver with a round shaft to support the cutterblade through its
centre hole. Hold the cutterblade horizontal and then release. A
balanced cutterblade will remain horizontal.
(Refer fi g.31)
If the cutterblade is not balanced the heavy end will rotate
downwards. Sharpen the heavy end until the cutterblade is
correctly balanced.
(Refer fi g.32)
Blade Brake Test
The engine and blade are designed to stop within 3 seconds
after you release the engine stop lever. Ensure that the engine
stop lever functions properly each time before you operate the
machine.
Fig. 30
Fig. 31
35°
If the blade does not stop within 3 seconds or there is a
grinding or scraping, metal-to-metal noise when you release
the engine stop lever, contact an Authorised Hayter Service
Dealer.
This same recommendation applies if you observe heavy
vibrations when using the machine.
Storage
When storing your mower away, ensure that cables do not
become snagged at the pivot point and depress the engine stop
lever to prevent it being damaged through contact with the
engine.
To store the handle unscrew the 2 small securing knobs
suffi ciently to allow it to be pivoted forwards to rest against the
mower.
(Refer fi g.33)
Engines stored in excess of 30 days need to be protected with
Briggs & Stratton fuel additive or drained of fuel to prevent gum
from forming in the fuel system or on essential carburettor parts.
To ensure your mower is maintained in good working order it is
important that the following procedure is adopted. Refer to the
Maintenance section as necessary.
•
Drain fuel from the engine by operating the engine until it
Fig. 32
Fig. 33
18
stops.
•
Disconnect the spark plug lead.
•
Change the engine oil.
•
Remove the engine spark plug and pour 15ml of engine oil
into the engine cylinder and replace the spark plug. Do not
exceed the stated volume of oil as engine damage may occur
on re-starting. Do not replace the spark plug lead. Slowly
pull the engine start-cord once to crank the engine. This will
distribute the oil and help prevent engine corrosion.
•
Clean grass and debris from the engine cylinder, cylinder
head cooling fi ns, under top cowl, around and behind
exhaust/exhaust guard and ensure that the grassbag is clean.
•
Lubricate the mower and treat metal parts with a water
repellent anti-corrosion product.
•
Cover the mower with a protective sheet and store it in a
dry, ventilated area.
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