Belt Removal And Replacement - MTD 660 Operator's Manual

Clean The Battery
Clean the battery by removing it from the unit and
washing with a baking soda and water solution. If
necessary, scrape the battery terminals with a wire
brush to remove deposits. Coat terminals and exposed
wiring with grease or petroleum jelly to prevent
corrosion.
Battery Failures
Some common causes for battery failure are: incorrect
initial activation, undercharging, overcharging,
corroded connections, freezing. These failures do not
constitute warranty.
Tires
Recommended operating tire pressure is
approximately 10 p.s.i. Maximum tire pressure under
any circumstances is 30 p.s.i. Equal tire pressure
should be maintained on all tires.
When installing a tire to the rim, be certain rim is clean
and free of rust. Lubricate both the tire and rim
generously. Never inflate to over 30 p.s.i. to seat beads.
WARNING:
p.s.i.) when seating beads may cause tire/rim
assembly to burst with force sufficient to
cause serious injury.

Belt Removal And Replacement

WARNING:
remove ignition key, disconnect the spark
plug wire(s) and ground against the engine to
prevent unintended starting before removing
belt(s)
NOTE:
Figures 22, 26 and 27 are shown with the unit
tipped up for clarity. It is not necessary to tip the unit to
remove the belts.
However, if tipping the unit is desired, remove the
battery from the unit. To prevent gasoline leakage,
drain the gasoline, or remove the fuel tank cap, place a
thin piece of plastic over the neck of the fuel tank and
screw on the cap. Be certain to remove the plastic when
finished changing the belts. Block unit securely.
Deck Belt (38" And 42" Decks)
• Place the lift lever in the engaged (all the way
forward) position.
• Disconnect the spring which is attached to a
bracket on the transaxle, inside the right rear wheel.
Use a spring puller or other suitable tool.
NOTE:
When reassembling, make certain belt keeper
pins are assembled in the same locations from which
they were removed. See Figure 22.
Excessive pressure (over 30
Be sure to shut the engine off,
• Place the lift lever in the BLADES STOP position.
• Remove the belt keeper pins from the lower frame.
See Figure 22.
• Unhook the deck belt from the engine pulley.
• Place the lift lever in the engaged (all the way
forward) position.
• Disconnect the stabilizer plate from the stabilizer
shaft assembly by removing the hairpin clips and
flat washers and sliding out the rod. Refer to Figure
13.
Belt Keeper Pins
• Disconnect the six deck links by removing the
hairpin clips and flat washers.
• Place the lift lever in the BLADES STOP position.
• Slide the deck from beneath the lawn tractor.
• Remove the belt guards at each deck pulley by
removing the self-tapping screws. See Figure 23.
Self-Tapping
Screws
Belt Guard
• Remove and replace the belt, reassemble following
the instructions in reverse order.
Deck Belts (46" Deck)
• Place the lift lever in the engaged (all the way
forward) position.
• Disconnect the spring which is attached to a
bracket on the transaxle, inside the right rear wheel.
Use a spring puller or other suitable tool.
21
Engine
Pulley
Figure 22
Stabilizer
Belt
Plate
Guard
Deck
Pulleys
Figure 23