Hayter Mowers R48 Recycling Mower 446E - Manual (Page 17)

Blade Maintenance
Replacing the Blade
Service Interval: Every 25 hours—Replace the blade
or have it sharpened (more frequently
if the edge dulls quickly).
Important: You will need a torque wrench to install
the blade properly . If you do not have a torque
wrench or are uncomfortable performing this
procedure, contact an Authorized Service Dealer.
Examine the blade whenever you run out of petrol. If
the blade is damaged or cracked, replace it immediately.
If the blade edge is dull or nicked, have it sharpened or
replace it.
The blade is sharp; contacting the blade can
result in serious personal injury.
Wear gloves when servicing the blade.
1. Disconnect the spark plug lead from the spark plug.
Refer to Preparing for Maintenance.
2. Tip the mower onto its side with the air filter up
(Figure 31).
Figure 31
3. Remove the blade, saving all mounting hardware.
4. Install the new blade and all mounting hardware.
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 82 N⋅⋅ ⋅m.
Important: A bolt torqued to 82 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.
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