Ryobi ZTR480ex - TYRE MAINTENANCE

shaft going through the centre blade hole
and the two blade posts inserted into their
respective holes on the blade. Make sure
that the blade is installed with the curved
ends pointing up toward the mower deck
and not down toward the ground. When
seated properly, the blade should be flat
against the blade posts.
8. Reinstall the spring washer, then thread
the blade nut on the shaft, and finger
tighten.
NOTE: Make sure that all the parts are
replaced in the exact order in which they
were removed.
9. Torque the blade nut down clockwise
using a torque wrench (not provided) to
ensure that the bolt is properly tightened.
The recommended torque for the blade
nut is 68 - 74 Nm (600-650 in. lbs.)
WARNING
Ensure that the blade is properly seated
and the blade nut is tightened to the torque
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attach the blade could cause it to come
loose and result in possible serious personal
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Repeat the steps with the second blade, if
needed.
2
1
Fig 22
Wrench
Block of wood
Blade
Fig 23
Spring washer
Blade half circle
hole
Blade nut
Centre
blade hole
Blade half
circle post
Shaft
Blade circle
post
Blade circle
hole
Blade
TYRE MAINTENANCE
The product is equipped with tubeless tyres
with the following dimensions:
Ŷ Front tyres: 38.1x15.2x15.2 cm
Ŷ Rear tyres: 40.6x16.5x20.3 cm
Tyre air pressure
Check the air pressure in all tyres before
use. Improper air pressure affects handling,
steering response, traction, tyre life, level
cutting, and operator comfort. Ensure that
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pressure.
Ŷ Front : 1.3 bar
Ŷ Rear: 1.25 bar
NOTE: Tyre pressure should only be
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WARNING
Check the tyre pressure carefully while
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cause the tyre to burst, causing serious
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31
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