Service - MTD 770 Operator's Manual

SECTION 8: SERVICE
Cutting Deck Removal
NOTE:
Models equipped with a 38-inch deck have
one deck idler pulley. Models equipped with a 42-inch
deck have two deck idler pulleys.
To remove the cutting deck, proceed as follows:
• Place the PTO (Blade Engage) lever in the
disengaged (OFF) position.
• Engage the parking brake.
• Lower the deck by moving the deck lift lever into the
bottom notch on the right fender.
• Remove the belt from around the tractor's engine
pulley and idler pulley(s). Refer to Changing the Deck
Belt on page 24 for detailed instructions.
• Looking at the cutting deck from the left side of the
tractor, locate the hair pin clip that secures the deck
support rod on the rear left side of the deck. See
Figure 20.
Hair Pin Clip
Figure 20
• Remove the hair pin clip that secures the deck
support rod, and carefully remove the deck support
from the deck lift arm.
• Repeat the above steps on the tractor's right side.
• Move the deck lift lever into the top notch on the
right fender to raise the deck lift arms up and out of
the way.
• Carefully remove the PTO cable from the rear of
the cutting deck by removing the hair pin clip which
secures it. Proceed to remove the spring from the
deck idler bracket. See Figure 21.
Hair Pin Clip
PTO Cable
• Gently slide the cutting deck toward the front of the
tractor allowing the hooks on the deck to release
themselves from the deck stabilizer rod.
• Gently slide the cutting deck (from the right side)
out from underneath the tractor.
Tires
WARNING:
inflation pressure shown on the sidewall of the
tire.
The recommended operating tire pressure is:
• Approximately 10 psi for the rear tires
• Approximately 14 psi for the front tires
Refer to the tire sidewall for exact tire
IMPORTANT:
manufacturer's recommended or maximum psi. Do not
overinflate. Uneven tire pressure could cause the
cutting deck to mow unevenly.
Changing the Transmission Belts
NOTE:
Several components must be removed and
special tools (i.e. air/impact wrench) used in order to
change the tractor's drive belts. See an authorized
MTD Service Dealer to have your drive belts replaced
or phone Customer Support as instructed on page 2 for
information on ordering an MTD Service Manual.
22
Idler Bracket
Figure 21
Never exceed the maximum