MTD 619 Operator's Manual page 20

Hydrostatic lawn tractor
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Battery
The battery is sealed and is maintenance-free. Acid
levels cannot be checked.
Always keep the battery cables and terminals clean
and free of corrosive build-up.
After cleaning the battery and terminals, apply a
light coat of petroleum jelly or grease to both
terminals
Always keep the rubber boot positioned over the
positive terminal to prevent shorting.
If removing the battery for any reason,
IMPORTANT:
disconnect the NEGATIVE (Black) wire from it's
terminal first, followed by the POSITIVE (Red) wire.
When re-installing the battery, always connect the
POSITIVE (Red) wire its terminal first, followed by the
NEGATIVE (Black) wire. Be certain that the wires are
connected to the correct terminals; reversing them
could change the polarity and cause damage to your
engine's alternating system.
Charging
If the unit has not been put into use for an extended
period of time, charge the battery with an automotive-
type 12-volt charger for a minimum of one hour at six
amps.
WARNING:
gas while charging. Charge battery in a well
ventilated area and keep away from an open
flame or pilot light as on a water heater, space
heater, furnace, clothes dryer or other gas
appliances.
Fuses
Two fuses are installed in your tractor's wiring harness
to protect the tractor's electrical system from damage
caused by excessive amperage.
If the electrical system does not function, or your
tractor's engine will not crank, first check to be certain
that the fuse has not blown.
One can be found under the hood mounted behind the
top of the dash panel on the support bar.
The other can be found under the seat mounted to the
inside of the tractor frame next to the battery tray. Pull
the fuse out and inspect it to determine if it is good or
blown.
Always use a fuse with the same amperage
capacity for replacement.
Cutting Deck Removal
To remove the cutting deck, proceed as follows:
Batteries give off an explosive
Place the PTO knob (or lever) in the disengaged
(OFF) position and engage the parking brake.
Lower the deck by moving the deck lift lever into the
bottom notch on the right fender.
On models with a 42-inch deck, remove the PTO
belt from around the cutting deck's center pulley.
Refer to Figure 16. On models with a 46-inch deck,
remove the PTO belt from around the tractor's
engine pulley or electric PTO clutch, if so equipped.
Refer to Figure 16 or Figure 17.
Looking at the cutting deck from the left side of the
tractor, locate the deck support pin on the rear left
side of the deck. See Figure 15.
Pull the deck support pin outward to release the
deck from the deck lift arm.
Rotate the pin slightly toward the rear of the tractor
and release the pin into the hole provided.
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.
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.
Changing the Deck Belt & PTO Belt
WARNING:
remove ignition key, disconnect the spark
plug wire(s) and ground against the engine to
prevent unintended starting before removing
the belt(s).
All belts on your tractor are subject to wear and should
be replaced if any signs of wear are present.
20
Support Pin
Figure 15
Be sure to shut the engine off,

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