12
Engine Ignition Switch
This machine features a key switch ignition.
Start: Turn the key all the way clockwise or START to
engage the engine starter motor. Once the engine
starts release the key.
Note: Always start this machine with the engine
throttle in the idle or “slow” position.
Run: This is the position of the key while the engine is
running.
Off: Turn the key to the “OFF” position to stop the
engine from running.
Note: For safety, always close the propane cylinder
valve to stop the engine and then turn the key switch
to the “OFF” position.
EcoSense Emission Monitoring (Optional)
Machines with model numbers ending in “X” are
equipped with the EcoSense Emissions Monitoring
system. EcoSense is an emissions monitoring device that
monitors the exhaust emissions and will shut the engine
down if the emissions levels are too low or too high.
Why will the unit shut down if the levels are too low?
The monitor must receive a signal from the oxygen
sensor in order to function. If it did not have a minimum
reading requirement it would be possible to disconnect
the oxygen sensor and operate the unit, even if the
emissions were out of limits. In order for the unit to work
as designed it must be able to read both low and high
signals, with “not to exceed limits” of both.
The oxygen sensor must reach operating temperature
before it will start to send signals to the EcoSense
module. This time is set at one minute. A unit may shut
down at a cold start up after one minute because the
oxygen sensor did not reach required temperature to
start to send signals. If this happens, turn the key to
the off position several seconds to clear the EcoSense
module and restart the engine. Once the engine has
started, advance the throttle to full throttle position and
start the operation. With the engine at full throttle under
load, the signal from the oxygen sensor should be within
the normal operating ranges for safe operation. If the
engine’s air intake filter needs to be serviced, or an over-
filled cylinder has been installed by mistake, or there is
a problem with the fuel system that causes the oxygen
sensor’s signal to be out of range, EcoSense will shut
the unit down in four minutes. The unit can be re-started
after clearing the module by turning off the key switch. If
corrections have not been made to the unit, EcoSense
will continue to shut the unit down after the one minute
warm-up and/or four minute out of limit periods.
Engines tend to go to lean burn if allowed to idle for even
short periods. Even at high idle speeds most engines
will continue to lean downward. It is always best to
shut the engine off when it is not being used to do work.
Remember the engine is always creating emissions as
long as it is running.
The best manner to operate a unit equipped with
EcoSense is as follows.
1. With the throttle in the slow position, turn the key
switch to the start position, once the engine starts,
advance the throttle to full throttle “fast”.
2. When ready to stop operation, release clutch (if
equipped) and move throttle to the slow position. If
the unit will not be used within one minute, turn the
key switch to the off position. If the unit will not be
returned to service within a few minutes it is best
to turn the gas valve on the tank off first and let the
engine consume all fuel that is in lines. Once the
engine dies, turn the key switch to off position.
3. When ready to restart, open the gas valve on the
tank, put the throttle in slow position and turn key
switch to the start position. Once the engine has
started, move throttle to full position and return to
operation.
Engine Throttle
The engine throttle controls the engine speed. To
increase engine speed, move the hand lever forward.
For idle position, pull the lever back.
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