Troy-Bilt 12AE76JU011 Manual Del Operador página 24

10. Carefully unhook the mower's lift assembly from the rear
deck supports.
11. Use the deck height lever to raise the lift assembly to its
highest position.
12. Remove the wooden blocks from under the deck and
gently slide the cutting deck toward the rear of the
machine.
13. Pull the click pin (a) out and unhook the drive spring cable
from the idler arm assembly. See Figure 7-4.
14. Gently slide the cutting deck to the right, out from beneath
the mower.
To install the cutting deck, follow Steps 1-14 in reverse order to
reattach deck and belt cover.
Cutting Blades
WARNING!
ignition key (if so equipped) before removing the
cutting blade(s) for sharpening or replacement.
Protect your hands by using heavy gloves when
grasping the blades.
WARNING!
spindle for cracks or damage, especially after you've
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 mower (refer to Cutting
Deck Removal on page 22), 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 blade to act as a stabilizer.
See Figure 7-5.
24 S 7— S
ection ervice
(a)
Figure 7-4
Shut the engine OFF and remove
Periodically inspect the blade and/or
(a)
Figure 7-5
3. Remove the hex flange nut (a) that secures the blade to the
spindle assembly. See Figure 7-5.
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 a 25° to 30°
angle. Always grind each cutting blade edge equally to
maintain proper blade balance. See Figure 7-6.
Figure 7-6
CAUTION:
If the cutting edge of the blade has
previously been sharpened, or if any metal
separation is present, replace the blades with new
ones.
WARNING!
A poorly balanced blade will cause
excessive vibration, may damage the mower and/or
result in personal injury.
(a)