MTD 465 - Manual (Page 10)

• Remove the two hairpin clips from each clevis pin
which extend through the housing and remove the
pins. See Figure 8.
• Remove the flail screen from inside the housing
and clean the screen by scraping or washing with
water.
• Reinstall the screen, making certain to reassemble
the flail screen with the curve side down.
• Reattach the discharge chute with the hardware
previously removed and connect the bag (if
equipped) to unit.
Sharpening Or Replacing Chipper Blades
• Disconnect the spark piug wire and ground against
the engine.
• Remove the fiail screen as instructed in the
previous section.
• Remove the chipper chute by removing three hex
nuts and washers.
Models 463 or 465
• Remove the chipper chute support brace from the
frame by removing the hex bolts.
All Models
• Rotate the impeller assembly by hand until you
locate one of the two chipper blades in the chipper
chute opening.
• Remove the biade using a 3/16” alien wrench on
the outside of the biade and an adjustabie wrench
on the impelier assembiy. See Figure 9.
Rotate the impeller to expose other blade and
remove in the same manner.
Replace or sharpen blades.
When sharpening the biade, protect hands by using
gloves and follow the original angle of grind. Also,
make sure to remove an equal amount from each
blade and torque to 250 - 300 in. lbs.
NOTE: Make certain blades are reassembled with the
sharp edge facing upward.
Sharpening Or Replacing The Shredder
Blade
• Disconnect the spark plug wire and ground against
the engine.
• Lower the hopper assembiy and block up the
housing.
• Remove the six hex iock nuts and fiat washers from
the weld studs on the flaii housing.
• Separate the hopper assembly from the impeller
assembly and remove the support plate.
NOTE: When reassembling the support plate, make
certain the embossed tab faces inward towards the
impeller.
• Remove the two wing knobs and cupped washers
that secure the discharge chute and raise the
chute.
• Insert a 1/2” or 3/4” diameter pipe through the flail
screen into the impelier to keep it from turning or
remove the flail screen and insert a piece of wood
into the chute opening.
• Remove the two outside screws on the biade, using
a 3/16” alien wrench and a 1/2” wrench.
See Figure 10.
• Remove the blade by removing the center bolt, lock
washer, and flat washer.
NOTE: Use caution when removing the blade to avoid
contacting the weid studs on the housing.
• When sharpening the blade, follow the original
angle of grind as a guide. It is extremely important
that each cutting edge receives an equal amount of
grinding to prevent an unbalanced blade.
10