Tire Combinations - 6175R to 6215R
IMPORTANT: Avoid excessive power train wear. Do not mix worn
and new tires, bias and radial, or tires of different diameters. Do
not use R2 tires in combination with R1.
Available tires are grouped by rolling circumference index.
Rolling circumference is the distance covered by the tire in one revolution.
Tires within a group, regardless of rim size, are the same or nearly
the same height. Knowledge and understanding of the rolling circumference
index and group size make it easier to select suitable tire combinations
for the front and rear wheels.
The rolling circumference index is an important factor for correctly
setting up the tractor. Since front tires are smaller than rear tires,
front tires have to rotate faster to cover the same distance as the
rear. Therefore it is important to select the correct size to optimize
efficiency and ensure longer tire life.
The front tire must be from a group that is five group sizes
smaller than the rear tire group. Example: if the rear tires are from
Group 47, the front tires must be from Group 42. Rim size is irrelevant.
Tires with different rim sizes such as 18.4R46 and 20.8R42 belong
to the Group with the same rolling circumference, in this case 47.
Tire sizes are stated in the tables below.
If you have any questions or need assistance in choosing the
correct combination, see your John Deere™ dealer.
IMPORTANT: If the tire combination or tire manufacturer is changed,
the transmission ratio must be ascertained. See Calculate Tire Combination.
IMPORTANT: If the transmission ratio is to be changed, the following
jobs must be performed by your John Deere™ dealer:
-
Change the gear pair for the front-wheel drive axle output
-
Change tire size in the software of the control units
-
Calibrate the radar (tractors with radar only)
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FRONT TIRES
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Minimum Recommended Row Width
mm (in.)
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762 (30)
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812.8 (32)
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1016 (40)+
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Tire width
mm (in.)
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Group size
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420 (16.9)
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480 (18.4)
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520 (20.8)
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620 (23.1)
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43
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420/85R34
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480/70R34
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540/65R34
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—
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42
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16.9R30
420/90R30
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480/70R30
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540/65R30
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600/65R28
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REAR TIRES
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Minimum Recommended Row Width
mm (in.)
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762 (30)
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812.8 (32)
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1016 (40)+
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Tire width
mm (in.)
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Group size
|
480 (18.4)
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520 (20.8)
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620 (24.5)
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710 (28)
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48
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480/80R50
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520/85R46
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650/85R38
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710/70R42
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47
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480/80R46
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520/85R42
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620/70R42
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710/70R38
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Tire combinations on tractors 6175R to 6215R with
front-wheel drive axles
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Rear wheel
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Front wheel
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Size
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SRI
|
Load index
|
Size
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SRI
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Load index
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18.4R46 -R2
|
975
|
155A8
|
16.9R30 -R2
|
725
|
141A8
|
|
320/90R54
|
925
|
149A8
|
320/85R38
|
725
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138A8
|
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380/90R50
|
975
|
151A8
|
320/85R38
|
725
|
138A8
|
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380/85R34
|
725
|
137A8
|
|
480/80R46
|
925
|
158A8
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420/90R30
|
725
|
142A8
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158B
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380/85R34
|
725
|
137A8
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480/80R50
|
975
|
159A8
|
420/85R34
|
750
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147A8
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380/80R38
|
750
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142A8
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480/70R34
|
750
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155A8
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|
146A8
|
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520/85R42
|
925
|
157A8
|
420/90R30
|
725
|
142A8
|
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380/85R34
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137A8
|
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16.9R30
|
700
|
144A8
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|
480/70R30
|
700
|
152A8
|
|
520/85R42 -R2
|
975
|
157A8
|
16.9R30 -R2
|
725
|
141A8
|
|
520/85R46
|
975
|
158A8
|
420/85R34
|
750
|
147A8
|
|
480/70R34
|
750
|
155A8
|
|
146A8
|
|
143A8
|
|
520/85R46 -R2
|
1025
|
158A8
|
480/70R34 -R2
|
775
|
146A8
|
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620/70R42
|
925
|
160A8
|
600/65R28
|
700
|
147A8
|
|
154A8
|
|
480/70R30
|
700
|
152A8
|
|
650/85R38
|
975
|
173A8
|
480/70R34
|
750
|
155A8
|
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173B
|
146A8
|
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143A8
|
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710/70R38
|
925
|
166A8
|
480/70R30
|
700
|
152A8
|
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171B
|
600/65R28
|
700
|
147A8
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154A8
|
|
710/70R42
|
975
|
173A8
|
480/70R34
|
750
|
155A8
|
|
168A8
|
146A8
|
|
173B
|
143A8
|
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OULXA64,00032C7-19-20150720
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