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Blade Care
WARNING!
ignition key before removing the cutting blade(s) for
sharpening or replacement. Protect your hands by
using heavy gloves when grasping the blade.
WARNING!
spindle for cracks or damage, especially after you
have struck a foreign object. Do not operate the
machine until damaged components are replaced.
To remove the blades, proceed as follows:
1.
Remove the deck from beneath the tractor, (refer to
Cutting Deck Removal earlier in this section) then gently
flip the deck over to expose its underside.
2.
Place a block of wood between the center deck housing
baffle and the cutting deck to act as a stabilizer. See Fig. 7-10.
3.
Remove the hex flange nut that secured the blade to the
spindle assembly. See Fig. 7-10.
4.
To properly sharpen the cutting blades, remove equal amounts
of metal from both ends of the blades along the cutting edges,
parallel to the trailing edge, at 25-30° angle. Always grind each
cutting blade edge equally to maintain proper blade balance.
CAUTION:
previously been sharpened, or if any metal separation
is present, replace the blades with new ones.
WARNING!
excessive vibration, may damage the tractor and/or
result in personal injury.
5.
Test the blades balance using a blade balancer. Grind metal
from the heavy side until it balances evenly.
NOTE: When replacing the blade, be sure to install the
blade with the side of the blade marked "Bottom" (or with
a part number stamped in it) facing the ground when the
mower is in the operating position.
CAUTION:
spindle hex flange nut to between 110-130 lbs-ft.
30
S
7— S
ection
ervice
Shut the engine off and remove
Periodically inspect the blade and/or
Figure 7-10
If the cutting edge of the blade has
A poorly balanced blade will cause
Use a torque wrench to tighten the blade
Changing the Deck Belt
WARNING!
The V-belts found on your tractor are
specifically designed to engage and disengage safely.
A substitute (non-OEM) V-belt can be dangerous by
not disengaging completely. For a proper working
machine, use factory approved belts.
All belts on your tractor are subject to wear and should be
replaced is any signs of wear are present. To change or replace
the deck belt on your tractor, proceed as follows:
1.
Remove the PTO belt as instructed earlier in this section
under Cutting Deck Removal.
2.
Remove the belt covers by removing the self-tapping
screws that fasten them to the deck.
3.
Working on the left side of the tractor, insert the 1⁄2" drive
ratchet wrench, set to loosen, into the square hole found
on the idler bracket.
4.
Pivot the wrench rearward to move the deck drive pulley
forward and relieve tension on the deck belt. See Fig. 7-3.
WARNING!
Avoid pinching injuries. Never place
your fingers on the idler spring or between the belt
and the pulley while installing the belt.
5.
Carefully remove the deck belt from around the left-hand
spindle before slowly allowing the wrench to pivot forward.
6.
Carefully remove the deck belt from around the right-hand
spindle pulley, center pulley on applicable models and
deck idler pulleys.
NOTE: The idler pulleys may have to be loosened, but not
removed, in order to remove the belt from around them.
7.
Route the new belt as shown for 54" deck in Fig. 7-11
Figure 7-11
NOTE: Use a 1⁄2" drive ratchet wrench as instructed in earlier
steps when routing the belt.
8.
Retighten idler pulleys, if loosened earlier.
9.
Remount the belt guards removed earlier.
10.
Re-Install the deck as instructed earlier in this section
under Mounting the Deck.
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