CHAPTER 4. INSPECTION AND MAINTENANCE OF MAJOR PARTS a. New Blade
SCMB60
b. Blade with rounded edge
7
6 c. Excessively worn blades are very dangerous. So replace such blades with new ones at once.
4
2
1
3
5
c.
(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)
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.
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.
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.
99
Connect the mower deck to the front mower properly, referring to the paragraph for "attaching and detaching the mower deck".
