CHAPTER 4. INSPECTION AND MAINTENANCE OF MAJOR PARTS
99
a. New Blade
b. Blade with rounded edge
c. Excessively worn 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)
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.
SCMA54
8668-306-051-00
8668-306-052-00
8668E
8668F
SCMB60
8680-306-001-00
8680-306-002-00
8680C
8680D
SSM54 8657-306-005
8657D
e. Connect the mower deck to the front mower
properly, referring to the paragraph for "attaching
and detaching the mower deck".
(1) Bolt (M12) (3) Plate (5) Blade
(2) Spring washer (4) Shims (1.2) (6) Collar (blade)
(7) Disk
1. Remove one of both bolts(1) of the blades(5) on
SCMA54, or SCMB60.
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 tighten
the bolt(1)
Tightening torque: 1000kgf・cm (72ft.lb)
5. After installing the blade, be sure to check that it
has no trouble by turning the blade with hand.
DANGER: Don't touch the blade. Before
handling the blade, put on gloves.
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.
7 6
4 2 1 3 5
SCMB60
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