IV. INSPECTION AND MAINTENANCE OF MAJOR PARTS
79
a. Check that blade(LH)(1) and blade(RH)(2) are at right
angles to each other.
b. "When these blades are not at right angles to each
other, straighten them by following ways."
(1) Bolt(M12) (3) Plate (5) Blade
(2) Spring washer (4) Shims(1.2) (6) Collar(blade)
1. Remove one of the bolts(1) of blade(5).
2. Remove the collar(6) assembly.
3. Install the collar(6) assembly so that blade(LH)(1) and
blade(RH)(2) are at right angles to each other.
4. Fix wood between blade and mower deck to tight en
the bolt(1)
Tightening torque: 1000kgf
･
cm (72ft.lb)
5. "After installing the blade, be sure to confirm that it
has no trouble by turning the blade with hand. "
Danger:
･ Don't touch the blade. Before handling the blade, put
on the glove.
･Inspection of blades
a. Turn the mower deck upside down.
Caution:
When turning the mower deck upside down, take care
not to allow it to hit your feet.
b. Check the mower blades for deformation and damage.
Important:
･ If the blade ends have become round due to wear,
enlarged clearance between blades leave uncut grass
behind. The blade should be checked timely and worn
ones should be replaced immediately.
･ Low cutting height or the operation just after soil has
been applied will wear blades rapidly. The blades
should be checked more frequently.
a. New Blade
b. Blade with rounded edge
c. Exessively worm blades are very
dangerous. So replace such blades
with new ones at once.
c. The blade bolts should be tightened to the specified
torque with the blades chocked respectively.
Tightening torque: 1000kg･cm (72 ft･lb)
(1) Blade
Danger:
Be sure to use new bolts when changing blades.
Important:
Make sure that the blades are not in contact with the
mower deck by turning them by hand.
d. There are two kinds of blades for respective mower
decks. Be sure to install the blades in the proper
positions.
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