HUSTLER TrimStar General Service Manual page 29

a rock, branch or other foreign objects during mowing!
Do not sharpen to original pattern (below). It is
easier to get a straight cutting edge following
the resharpening pattern shown above.
Figure 6-9
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 rotat-
ing when they are being removed or installed on the spindle.
®
Contact your Hustler Turf Equipment dealer for more informa-
tion.
Sharpen the blades on a grinder following pattern as shown in
Figure 6-9. Touch-up sharpening can be done with a file.
Check the blades for balance following grinding. A commer-
cial balancing tool is available through most hardware supply
stores, or balancing can be done by placing the blade on an
inverted line punch or 5/8" 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-
ure 6-10 and Figure 6-11). 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
(160.01Nm) when reinstalling blades.
IMPORTANT: The blade sail (curved part) must be point-
ing upward toward the inside of the deck to ensure proper cut-
ting.
IMPORTANT: When mounting blades, rotate them after
installation to ensure blade tips do not touch each other or sides
of the mower.
114674_0512
Resharpening
pattern
Original edge
®
Belts
belt that shows signs of severe cuts, tears, separation, weather
checking and cracking, or burns caused by slipping. Slight rav-
eling of belt covering does not indicate failure, trim ravelings
with a sharp knife.
belt, or one in good condition, should never run against the bot-
tom of the groove. Replace the pulley when this is the case, oth-
erwise belt will lose power and slip excessively.
the fibers of the belt covering.
ings. Any of these will destroy the belt composition in a very
short time.
Deck Belt Adjustment
sion idler and spring. The spring tension should be such that the
belt does not slip under normal operating load conditions,
assuming the belt is not excessively worn or damaged. As the
belt stretches and wears in, adjustment may become necessary.
To increase belt tension, move the spring chain one (or more)
link(s) at the anchor point on the deck frame. Figure 6-12, Fig-
ure 6-13, Figure 6-14 & Figure 6-15
6-7
Warped Blade (Replace)
Straight Blade
Comparison of Warped and Straight Blades
Figure 6-10
Cutting edge
Twisted Blade Edge
(replace)
Cutting Plane Cutting edge
Straight Blade Edge
End view of blades, comparing
twisted and straightened blades
Figure 6-11
WARNING
Failure to correctly torque the bolt may result in the loss
of the blade which can cause serious injury.
Inspect belts frequently for wear and serviceability. Replace a
Inspect the belt pulley grooves and flanges for wear. A new
Never pry a belt to get it on a pulley as this will cut or damage
Keep oil and grease away from belts, and never use belt dress-
The spindle belt tension remains constant by means of a ten-
IMPORTANT: Do not over tension the spring to compensate
Cutting
plane
REV B