Hustler Turf ATZ - Manual (Page 25)

ensure blade tips do not touch each other or sides of the mower.
WARNING: Failure to correctly torque the bolt may result in
the loss of the blade which can cause serious injury.
WARNING: Mower blades are sharp and can cut. Wrap the
blade(s) or wear gloves and use extra caution when servicing
them.
Control lever adjustment
The steering control levers can be adjusted for operator comfort. By
loosening the cap screws that attaches the upper control lever to the lower
lever (Fig. 4-15), the upper control lever can be pivoted to fit the operator’s
personal preference.
The steering control levers should be adjusted so that they align with
each other when in the neutral position.
the grass, leaving a brown ragged top on the grass within a few hours. A
dull blade also requires more power from the engine.
Replace any blade which is bent, cracked or broken.
WARNING: Never attempt to straighten a bent blade by
heating, or weld a cracked or broken blade as the blade may
break and cause serious injury. Replace worn or damaged
blades.
DANGER: Never work with blades while engine is running
or deck clutch switch is engaged (on). Always place deck
clutch switch in the disengaged position, place control levers
in the park brake position and turn engine off and disconnect
negative battery cable. Block up mower when you must
work under it. Wear gloves when handling blades. Always
check for blade damage if mower strikes rock, branch or
other foreign object during mowing!
WARNING: Always wear adequate eye protection when
grinding mower blades.
Mower blade removal
Use a 15/16" wrench to remove the 5/8" cap screw holding the blade to
the spindle shaft from underneath. NOTE: A blade holding tool (part
number 381442) is available from Hustler Turf Equipment. It is designed
to prevent the blades from rotating when they are being removed or
installed on the spindle. Contact your Hustler dealer for more information.
Sharpen the blades on a grinder following pattern as shown (Fig. 4-12).
Touch-up sharpening can be done with a file.
Check the blades for balance following grinding. A commercial
balancing tool is available through most hardware supply stores, or
balancing can be done by placing the blade on an inverted line punch or
1/2" bolt. Blade should not lean or tilt. Spin the blade slowly, blade should
not wobble. If blade is out of balance, true it up before reinstalling.
Lay the blade on a flat surface and check for distortion (Fig. 4-13 and
4-14). Replace any distorted blade.
Do not re-use spindle bolts which have stripped, worn or undercut
threads. Torque bolts on spindles to 118 foot-pounds (160.0 N m) when
reinstalling blades.
IMPORTANT: When mounting blades, rotate them after installation to
601656_0308
Figure 4-15
Cap screw
Upper
control
lever
Lower control
lever
24
Warped Blade (Replace)
Straight Blade
Comparison of Warped and Straight Blades
Cutting
Plane
Figure 4-13
Figure 4-14
Twisted Blade Edge
(Replace)
Cutting Edge
Straight Blade Edge
End view of blades, comparing
twisted and straighten blades.
Cutting Plane
Cutting Edge
Figure 4-12
Resharpening Pattern
Do not sharpen to original pattern (below).
It is easier to get a straight cutting edge following
the resharpening pattern shown above.
Original Edge