Replacing The Mower Belt - Kubota Z411 Operator's Manual

SERVICE AS REQUIRED
Then turn it over to expose the blades.
2. Wedge a block of wood between the blade and the
mower housing or use a box wrench over the pulley
nut to prevent the spindle from rotating while
removing the blade bolts. Then, loosen the blade
bolt as illustrated.
IMPORTANT :
• Use the proper metric size box or socket
wrench to tighten or loosen the blade
mounting bolt.
(1) Block
3. To sharpen the blades yourself, clamp the blade
securely in a vise.
Use a large mill file and file along the original bevel
until sharp.
4. To check the blade for balance, place a small rod
through the center hole. If the blade is not
balanced, file the heavy side of the blade until
balance is achieved.
5. To attach blades, be sure to install the cup washer
between the blade and bolt head. Then tighten the
bolt securely.
(1) Spindle holder
(2) Blade
(3) Cup washer
IMPORTANT :
• Tighten the blade bolts from 103 to 118 N⋅m
(76 to 87 lbf⋅ft).
Z400
(A) "LOOSEN"
(4) Lock washer
(5) Bolt
• The blade bolts have right hand threads.
Turn them counterclockwise to loosen.
• To prolong the service life of the blades,
reposition them as shown in the following
figure periodically.
(1) LH blade
(2) Center blade

3. Replacing the mower belt

1. Remove the mower deck from the machine.
(See DISMOUNTING THE MOWER DECK on page
25.)
2. Remove the left and right hand shield from the
mower deck.
3. Remove the tension pulley, and remove the belt.
4. To install a new belt, reverse the previous
procedure.
NOTE :
• Tighten the tension pulley bolt securely from
77.6 to 90.2 N⋅m (8.0 to 9.2 kgf⋅m, 57.1 to
66.5 lbf⋅ft).
(1) Tension pulley
(2) Belt
(3) Bolt
PERIODIC SERVICE
(3) RH blade
(4) Shield
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