Iseki SZ330 SSM60, Руководство по эксплуатации

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3. INSPECTION & REPLACEMENT OF BLADES
Blade Removal
CAUTION: Be sure to wear gloves to avoid
cuts by blades.
Block blades by inserting a piace of wood,1, between
blade and mower deck. Loosen blade retaining nut with a
27-mm box end wrench. As blades are tightened with
washers and shims, take care not to lose them when
blades are disassembled.
Shimming of Blades
Tighten blade nuts temporarily to determine the height
difference between blades. If more than 0.04" (1mm), cor-
rect with adjusting shims,2, Excessive difference in blade
positioning will result in poor mowing finish.
Blade nuts,3, should be tightened to a torque of 94 ft.lbs.
(1300 kgf
･ cm).
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 dan-
gerous. So replace such blades with
new ones at once.
CAUTION: When sharpening blade edges,
both ends should be done in same manner or
blade becomes unbalanced.
Pass a rod through blade center hole and
check to see if blade is balanced properly. If
balabce is improper, correct it. Unbalansed
blades will cause excessive vibration.
(1) Wood
(2) Shims
(3) Nut
ZERO TURN MOWER
1
2
3
FIG. 5-11
FIG. 5-12
FIG. 5-13