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MAINTENANCE
Remove & Replace the Blade
IMPORTANT: You will need a torque wrench to
replace the blade properly. If you are uncomfortable
performing this procedure or do not have a torque
wrench, contact a Hayter Authorised Service Dealer.
WARNING: The blade is sharp; contacting the blade
can result in serious personal injury. Wear gloves
when servicing the blade.
Examine the blade regularly. If the blade is damaged or
cracked, replace it immediately. If the blade edge is dull
or nicked, have it sharpened and balanced, or replace
it.
1. Refer to Preparing for Maintenance.
2. Tip the mower onto its side with the dipstick
down.
3. Use a block of wood to hold the blade steady.
4. Remove the blade, saving all mounting hardware.
(Refer fig. 33)
5. Install the new blade (4) with the edges turned
up, facing towards the mower housing. Secure the
cutterblade (4) using the bolt (1), spring washer (2)
and distance piece (3).
Fig. 33
3
2
1
6. Tighten the blade bolt to the specified torque of 54
Nm. The blade will curve slightly when tightened
against the friction disc.
(Refer fig. 34)
Blade Sharpening
A slightly worn blade may be re-sharpened. Both blade
edges must be sharpened equally to ensure balance.
Sharpen the blade every 25 mowing hours or more
frequently if conditions require.
Remove the blade from the mower and clean using
a brush and water. Inspect the blade for signs of
damage. Sharpen both cutting edges with a flat file to
restore performance.
(Refer fig.35)
Ensure that the blade is balanced. Use a screwdriver
with a round shaft to support the blade through
its centre hole. Hold the blade horizontal and then
release. A balanced blade will remain horizontal.
(Refer fig.36)
If the blade is not balanced the heavy end will rotate
downwards. Sharpen the heavy end until the blade is
correctly balanced.
(Refer fig.37)
Fig. 34
4
Fig. 35
3
2
1
4
23
Fig. 36
30°
Fig. 37
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