Cub Cadet I1042 - Manual (Page 24)

24 s
ectiOn
7— s
ervice
Cutting Blades
WARNING! Be sure to shut the engine off, remove
ignition key, disconnect the spark plug wire(s) to
prevent unintended starting before removing the
cutting blade(s) for sharpening or replacement.
Protect your hands by using heavy gloves or a rag to
grasp the cutting blade.
The blades may be removed as follows.
Remove the deck from beneath the tractor, (refer to 1.
Cutting Deck Removal) then gently flip the deck over to
expose its underside.
NOTE: A block of wood may be placed between the deck
housing and the cutting edge of the blade to help in
breaking loose the hex nut securing the blade.
Use a
2. 15⁄16” wrench to loosen the hex flange nut securing
the blade to the bottom of the spindle assembly. Secure
the spindle by either holding the blade tightly, or by using
a second wrench to hold the nut at the top of the spindle.
Continue holding the blade onto the star hub of the
3.
spindle, and remove the flange nut and cutting blade.
Repeat the previous steps to remove the other blade.
4.
To properly sharpen the cutting blades, remove equal 5.
amounts of metal from both ends of the blades along the
cutting edges, parallel to the trailing edge, at a 25° to 30°
angle.
NOTE: If the cutting edge of the blade has already been
sharpened to within 1-5⁄8” from the edge, or if any metal
separation is present, replace the blades with new ones.
See Fig. 7-2.
It is important that each cutting blade edge be ground 6.
equally to maintain proper blade balance.
A poorly balanced blade will cause excessive vibration and
7.
may cause damage to the tractor and result in personal
injury. The blade can be tested by balancing it on a round
shaft screwdriver. Grind metal from the heavy side until it
balances evenly.
NOTE: When replacing the blades, make certain the side
of the blade marked ‘‘Bottom’’ faces the ground when the
mower is turned to the operating position.
NOTE: Note that the stars of the blades (and spindles)
are not symmetrical. The blade can be installed on each
spindle in only one direction. Carefully align the star hole of
the blade with the star of the spindle shaft when installing
each blade. DO NOT improperly align the blade and spindle
shaft, and attempt to seat the blade onto the spindle by
tightening the hex flange nut.
Rotate the blade as necessary to align its star hole with
8.
the star of the spindle shaft, then slide the blade onto the
spindle shaft. Thread the hex flange onto the spindle shaft
and use a torque wrench to tighten the hex flange nut to
70 to 90 foot-pounds.
Repeat the above procedure to install the other blade.
9.
Changing the PTO Belt
WARNING! Be sure to shut the engine off, remove
ignition key, disconnect the spark plug wire(s) to
prevent unintended starting before removing the
belt(s).
All belts on your tractor are subject to wear and should be
replaced if any signs of wear are present.
NOTE: Do not use substitute belts. The V-belt found on your
tractor is specially designed for optimal performance and service
life for your deck application. Use only OEM original replacement
belts.
To replace the PTO belt, proceed as follows:
Remove the deck from beneath the tractor (refer to Cutting 1.
Deck Removal).
Maneuver the PTO belt downward and off the idler
2.
pulley on the spring loaded idler bracket. NOTE: It may
be necessary to loosen the hex cap screw and flange lock
nut securing the pulley to the idler bracket to fit the belt
between the pulley and bracket. Slide the belt between
the bottom of the idler pulley and top of the timing belt
idler pulley below. See Fig. 7-3.
Worn Blade Edge
Blade Separation
Wind Wing
1-5⁄8”
Sharpen Edge Evenly
Figure 7-2
Fixed Idler
Pulley
PTO Belt
Idler Bracket
and Pulley
Figure 7-3