100862 - FRONT TiNE TiLLER
TiLLiNG TiPS AND TECHNiQUES
19
under normal operation:
1. To stop the tines, release all control levers.
2. Turn the fuel valve to the “OFF” position.
FUEL OFF
3. Let the engine run until fuel starvation has stopped the
engine. This usually takes a few minutes.
Operation at High Altitude
The density of air at high altitude is lower than at sea level. Engine
power is reduced as the air mass and air-fuel ratio decrease.
Engine power and generator output will be reduced approximately
3½% for every 1000 ft. of elevation above sea level. This is a
natural trend and cannot be changed by adjusting the engine. At
high altitudes increased exhaust emissions can also result due to
the increased enrichment of the air fuel ratio. Other high altitude
issues can include hard starting, increased fuel consumption and
spark plug fouling.
To alleviate high altitude issues other than the natural power
loss, CPE can provide a high altitude carburetor main jet. The
alternative main jet and installation instructions can be obtained
by contacting our Technical Support Team. Installation instructions
are also available in the Technical Bulletin area of the CPE website.
The part number and recommended minimum altitude for the
application of the high altitude carburetor main jet is listed in the
table below.
In order to select the correct high altitude main jet it is necessary
to identify the carburetor model. For this purpose, a code is
stamped on the side of the carburetor. Select the correct high
altitude jet part number corresponding to the carburetor code
found on your particular carburetor.
Carb. Code high alt. Jet Part number min. altitude
16100_
Z142910-
02A0
16161-Z151010-0000
3000 ft. (914 m)
16161-Z151310-0000
6000 ft. (1829 m)
WARNiNG
Operation using the alternative main jet at elevations lower
than the recommended minimum altitude can damage the
engine. For operation at lower elevations, the originally
supplied standard main jet must be used. Operating the
engine with the wrong engine configuration at a given altitude
may increase its emissions and decrease fuel efficiency and
performance.
TiLLiNG TiPS AND TECHNiQUES
Tilling Depths
WARNiNG
Before tilling, contact your telephone or utilities company and
inquire if underground equipment or lines are used on your
property. Do not till near buried electric cables, telephone
lines, pipes or hoses.
Avoid trying to dig too deeply too quickly, especially when busting
sod or when tilling soil that hasn’t been tilled for some time. Use
shallow depth regulator settings (only an inch or two deep) for
the first passes through the soil. With each succeeding pass, dig
another inch or two deeper. (Watering the area a few days prior to
tilling will make the tilling easier, as will letting the newly worked
soil set for a day or two before making a final, deep tilling pass.
When cultivating (breaking up surface soil around plants to
destroy weeds), adjust the tines to dig only 1 in. to 2 in. (2.5 to
5 cm) deep. Using shallow tilling depths helps prevent injury to
plants whose roots often grow close to the surface. If needed, lift
up on the handlebars slightly to prevent the tines from digging too
deeply. (Cultivating on a regular basis not only eliminates weeds,
it also loosens and aerates the soil for better moisture absorption
and faster plant growth.)
Choosing Correct Tine Speed
With experience, you will find the “just right” tilling depth and
tilling speed combination that is best for your garden.
Set the engine throttle lever at a speed to give the engine
adequate power and yet allow it to operate at the slowest possible
speed ... at least until you have achieved the maximum tilling
depth you desire. Faster engine speeds may be desirable when
making final passes through the seedbed or when cultivating.
Selection of the correct engine speed, in relation to the tilling
depth, will ensure a sufficient power level to do the job without
causing the engine to labor.
