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3. Remove the blade, saving all mounting hardware
Figure 24.
4. Install the new blade (4). Install all mounting
hardware (1, 2, 3). Secure the cutterblade (4)
using the bolt (1), spring washer (2) and distance
piece (3). Figure 24.
IMPORTANT: Position the curved ends of the blade
to point toward the mower housing.
5. Use a torque wrench to tighten the blade bolt to
54 N∙m.
IMPORTANT: A bolt torqued to 54 N∙m is very tight.
While holding the blade with a block of wood,
put your weight behind the ratchet or wrench and
tighten the bolt securely. This bolt is very difficult
to overtighten.
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. Figure 25.
©2020 - Hayter Limited
Spellbrook, Bishop's Stortford,
Herts, CM23 4BU
3
2
1
Figure 24
30°
Figure 25
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.
Figure 26.
If the blade is not balanced the heavy end will rotate
downwards. Sharpen the heavy end until the blade
is correctly balanced. Figure 27.
4
Lubricating the Machine
Service Interval: Yearly or before storage.
Apply a few drops of No. 2 lithium grease to the ball
bearings on each of the front wheels. Figure 28.
19
Figure 26
Figure 27
Figure 28
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