Proper Tire Balancing Boosts 4-Wheel Performance
NEW HOLLAND (Uncaster
Co.) Today’s four-wheel drive
tractor is a marvel of efficiency
and performance, providing it is
properly ballasted to give you
equal weight distribution fore and
aft while allowing for high-speed
field work and optimum wheel
slippage.
It’s not hard to determine prop
er ballasting, but before looking at
that, consider speed and wheel
slip.
You should plan to operate at
the highest field speed possible for
the type of implements you’re
using and the soil conditions. As
the tractor speed increases, the
amount of weight required
decreases. There will be less pull,
and reducing the pull by 2 percent
can result in 50 percent longer life
of your tractor’s drive train
components.
Concerning wheel slip, it’s
been determined that most effi
cient operation is achieved when
wheel slip is maintained between
10 and 15 percent. Too much bal
last literally ties the tractor to the
ground, subjecting the drive train
to all the stress of engine torque
and shock loads. The heavier the
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RD 1, Rt. 100
215-367-9084
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Routa 23
717-354-4026 Ext. 34
Elm/Lebanon
BOMBERGER’S LAWN
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Elm; 717-684-4663
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Eohrata
WES STAUFFER
ENGINES & EQUIPMENT
23 Plaaaant Valtvy Rd.
717-736-4215
Eohrata. Harshi
HOLLINGER’S LAWN &
GARDEN EQUIP.
Ephnta, PA 717-738-1131
Harahay, PA 717-833-4060
Lancaatar, PA 717-656-2710
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GAP POWER EQUIPMENT
Cornar of Rt SO A HI. M 7
717-442-6970
tractor, the more rolling resis
tance, so more power is needed to
move it. Also, of course, too much
weight causes unnecessary soil
compaction and stresses tire bars.
Too little ballast causes excessive
water of tire bars because of slip
page and reduces forward speed.
In general, you want ballasting
that allows you to operate at conti
nuous pulls of S mph and above
with a 10 to 15 percent wheel slip.
As noted earlier, ballasting is
also used to obtain an approximate
50-50 weight distribution between
the front and rear axles when the
unit is operating under load.
There are really three separate
“stages” when you evaluate the
tractor weight distribution. The
bareback stage (A) is when the
tractor has no PTO or no three
point hitch but is simply “as deliv
ered” it has no ballast and is not
in motion. With the Ford Versatile
four-wheel drive tractors, in this
stage, 33 percent of the weight is
on the rear axle and 67 percent is
on the front axle.
The second stage (B) is with
ballasting added to compensate
for the type of work to be done
but the machine is still at rest. The
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SHARTLESVILLE
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RD 1, Box 1302
215-488-1025
BLUE MOUNTAIN
ENTERPRISES, INC.
Rt. 72 South
717-865-2994
Lebanon
THE FARM WORKSHOP
1(11 FondarwhMa Rd.
717-273-9540
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717-866-6720
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717-MS-4«IS
Oxford
1100 Limestone Rd.
215-032-2073
third stage (C) is when the
machine is working, or under
load. That’s when you want the
equal weight front and rear.
In average soil conditions with
the implements most commonly
used in the U.S. Midwest and
western Canada that is, the
long drawbar-type implements
ballasting to obtain an unloaded
weight distribution of between 55
percent and 60 percent of the
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742 Nottinflhxm Rd
A & B SALES & SERVICE
2 MIIm South of Rt. 23 Along 772
Thru Montoroy ■ RD 1
Somerset. PA
McCoole. MD
LINCOLN SUPPLY &
EQUIPMENT CO.
Somoroot, PA 814-443-1691
McCoolo, MD 301-786-6800
Watsontown
SEILER’S REPAIR
1 Ml. W. ol Turbolvlllo
On Rl. 44
RD 2, Box 54
West Chester
M.S. YEARSLEY & SONS
110-120 E. Market St.
215-696-2990
Distributed By
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weight on the front tires is consid
ered optimum. Then, when the
tractor is under load or in opera
tion, weight will be transferred to
the rear axle to produce the
desired 50-50 weight split. (Axle
components are sized the same,
front and rear, to pull equally.)
If the tractor will be working in
average soils but using a three
point hitch implement or short,
deep-ground-engaging drawbar
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implement, at rest you wt
between 63 percent and 68 perci
of the total weight on the fr<
tires.
Also, Ford New Holland hi
21-minute VHS video, “Ballasl
Four-Wheel Drive Tractors
Maximum Productivity and Li
Tractor Life,” which you n
order through your Ford New H
land dealer.
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