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Section 5: Maintenance & Lubrication
ZT60i & ZT72i (S/N 748110+) Accu-Z
®
Zero Turn Mowers 357-552M
Table of Contents
2/06/14
Refer to Figure 5-18:
Blade Resharpening
Figure 5-18
Refer to Figure 5-19:
5. Sharpen blade by following the grinding pattern
shown in Figure 5-19.
a. Grind cutting edge at the same bevel as the
original angle. (27 1/2 degrees).
b. Sharpen only the top of the cutting edge to
maintain sharpness.
c. Touch-up sharpening can be done with a file.
Blade Resharpening
Figure 5-19
NOTE: New mower blades are furnished with
cutting edge parallel with back of blade. Do not
sharpen blade to original parallel pattern. It is easier
to get a straight cutting edge by resharpening the
pattern to the one shown in Figure 5-19.
19075
Original Cutting Edge Pattern
19074
Resharpening Cutting Edge Pattern
Refer to Figure 5-20:
6. Remove an equal amount of material from each end
of the blade to keep blade in balance. Check blade
balance as follows:
a. Positioning center of blade horizontally on a nail
or shaft. See Figure 5-20.
b. If either end of the blade rotates downward, grind
(remove) metal on that end until blade will
balance horizontally on the nail or shaft.
c. Resharpened blades can be installed after they
have been properly sharpened and balanced.
Blade Balancing
Figure 5-20
Blade Installation
Refer to Figure 5-15 on page 46:
!
WARNING
When mounting blades, rotate them after installation to ensure
blade tips do not touch each other or sides of the mower.
!
WARNING
Failure to torque blade bolt properly may result in the blade
coming loose and falling off causing a serious injury.
1. Install resharpened or new blade (#4) with blade
washer (#3) and blade bolt (#2). Be careful not to
cross thread blade bolt while installing it.
2. Tighten blade bolt to the correct torque. See
“Additional Torque Values” on page 58 for correct
torque values.
NAIL OR SHAFT
HORIZONTAL
19046
IMPORTANT: Replace mower blades with Land
Pride blades only.
IMPORTANT: Always install blades with cutting
edge facing direction of blade spindle rotation and
with wing tips pointing up towards bottom of deck.
For correct blade rotation, see arrow in Figure 5-15.
IMPORTANT: Do not re-use blade bolts which have
stripped, worn or undercut threads. For proper blade
bolt torque value. see “Additional Torque Values”
on page 58.