Machine Operation
FIG. 6
MACHINE COMPONENTS
KEY SWITCH
This machine features a key switch ignition (Figure 5):
• START: Turn the key all the way clockwise to engage the engine starter motor.
Once the engine starts, release the key. Always start the machine with the engine
throttle in the idle or slow position.
• RUN: This is the position the key will rest in while the engine is running.
• OFF: Turn the key to this position to stop the engine from running. For safety,
always close the propane cylinder valve to stop the engine and then turn the key
switch to the OFF position.
ENGINE THROTTLE
The engine throttle (Figure 6) controls the engine speed. To increase engine speed,
move the hand lever forward. For idle position, pull the lever all the way back.
ECOSENSE EMISSIONS MONITORING SYSTEM - OPTIONAL
Machines with model numbers ending in “X” are equipped with the EcoSense Emissions
Monitoring System (Figure 7). EcoSense is an emissions monitoring device that moni-
tors the exhaust emissions and will shut the engine down if the emissions levels are too
low or too high.
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 for several sec-
onds 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 emis-
sions 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, move the throttle to the fast position.
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 posi-
tion and turn key switch to the START position. Follow engine throttle instructions.
12
FIG. 7
FIG. 5
