Troy-Bilt ZT42 Lawn Mower User Manual


 
16 se c t i O n 5— Op e r a t i O n
The safety interlock system will shut off the engine if the 

of whether the parking brake is engaged.
NOTE: 
position to restart the engine.

mower blades will stop if both drive control levers are

when one or both of the levers are moved back to the
neutral or forward position.
Starting the Engine
This tractor is equipped with a safety
interlock system designed for the protection of the
operator. Do not operate the tractor if any part of

check the functions of the interlock system for
proper operation.
For personal safety, the operator must
be sitting in the tractor seat when starting the
engine.

2.
3.

Move the throttle/choke control lever fully forward into the 

NOTE: If the engine is warmed up, it may not be necessary
to place the throttle/choke control in the choke position.
5.
and release it as soon as the engine starts; however, do not
crank the engine continuously for more than 5 seconds at
a time. If the engine does not start within this time, turn


after a few attempts the engine fails to start, do not keep
trying to start it with the choke closed as this will cause
flooding and make starting more difficult.
As the engine warms up, gradually pull the throttle/choke 
control lever rearward past the choke detent position.
Do not use the choke position to enrich the fuel mixture,
except as necessary to start the engine.
Allow the engine to run for a few minutes at mid throttle 7.
before putting the engine under load.
8.
indicator light or oil pressure light come on, immediately

Bilt dealer.
Cold Weather Starting
When starting the engine at temperatures near or below
freezing, ensure the correct viscosity motor oil is used in the
engine and the battery is fully charged. Start the engine as
follows:
Be sure the battery is in good condition. A warm battery 
has much more starting capacity than a cold battery.
Use fresh winter grade fuel. Winter grade gasoline has 2.
higher volatility to improve starting. Do not use gasoline
left over from summer.
Follow the previous instruction for Starting the Engine.3.
Using Jumper Cables To Start Engine
Batteries contain sulfuric acid and
produce explosive gasses. Make certain the area is
well ventilated, wear gloves and eye protection, and
avoid sparks or flames near the battery.
If the battery charge is not sufficient to crank the engine,
recharge the battery. If a battery charger is unavailable and
the tractor must be started, the aid of a booster battery will be
necessary. Connect the booster battery as follows:
Connect the end of one cable to the disabled tractor 


Connect one end of the other cable to the booster 2.

that cable to the frame of the disabled tractor, as far from
the battery as possible.
Start the disabled tractor following the normal starting 3.
instructions previously provided; then disconnect
the jumper cables in the exact reverse order of their
connection.

as soon as possible to eliminate the need for jump starting.










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