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B Calculation Of The Load On The Front Axle - SKY Agriculture EASY DRILL W 4000 Originalbetriebsanleitung

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Before start-up
B
Calculation of the load on the front axle
a) Checking the tractor's required characteristics
The tractor requirements relate to :
- the total authorised weight
- the permitted weight per axle
- the authorised support weight on the tractor's coupling point
- the permissible load carrying capacity for the tyres fitted to the tractor
All of this information can be found on the data plate or on the registration papers and in the tractor manual.
The weight on the tractor's front axle should be at least 20% of the unladen weight of the tractor.
The tractor must supply the deceleration power (braking) required by the manufacturer when the machine is coupled up to
it.
The gross weight of the tractor indicated on the vehicle's registration papers must be greater than the sum of :
- the unladen weight of the tractor
- the ballast
- the total weight of the towed machine
The method on the previous page will enable you to complete the table below.
Uw
kg
Unladen weight of tractor
Fal
kg
Front axle load when the tractor is empty
Ral
kg
Rear axle load when the tractor is empty
Frb
kg
Front ballast (if present)
Lt
kg
Load transfer of the towed machine
Distance between the centre of gravity of the front imple-
a
m
ment or ballast and the centre of the front axle (total of a1
+ a2)
Distance between the centre of the front axle and the
a1
m
centre point of the front lower linkage arms
Distance between the centre point of the front lower
a2
m
linkage arms and the centre of gravity of the front imple-
ment or ballast
b
m
Wheelbase of tractor
Distance between the centre of the rear axle and the
c
m
centre point of the front lower linkage arms
The method on page 14 will enable you to complete the table below.
M
INIMUM FRONT
Frb (min)
BALLAST
T
OTAL WEIGHT
W (tot) =
F
RONT AXLE LOAD
Fal (tot) =
R
EAR AXLE LOAD
Ral (tot) =
A
CTUAL VALUE
OBTAINED VIA
THE CALCULATION
=
less than
or equal to
less than
or equal to
less than
or equal to
Cf the tractor's registration documents or its instruc-
tion manual
Cf ballast characteristics
Cf page 75
Cf characteristics of the different elements or measure
cf the tractor's instruction manual or measure
cf characteristics of the different elements or measure
cf the tractor's registration documents or its instruc-
tion manual
A
UTHORISED VALUE
ACCORDING TO THE
MANUAL OR REGISTRATION
DOCUMENTS
less than
or equal to
less than
or equal to
GB
1
L
OAD CARRYING
2
CAPACITY OF THE
TYRES ON EACH AXLE
17

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