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19
Ground Pressures
Track-TypeTractors
Edition 47 19-27
GROUND PRESSURES
Pressures computed from operating weights given
earlier in this section in the specifications tables.
MODEL
SHOE
WIDTH
CONTACT
AREA
GROUND
PRESSURE
mm in m
2
in
2
kPa psi
D7E
1
560
22
3.37
5231
75.71
10.98
◀
610
24
3.68
5698
69.51
10.08
660
26
3.98
6165
64.24
9.32
D7E LGP
1
915
36
6.31
9792
44.28
6.42
D7R
◀
560
22
3.24
5016
75.10
10.56
610
24
3.53
5472
69.00
9.76
D7R XR
◀
560
22
3.43
5315
70.60
10.03
610
24
3.75
5808
65.90
9.26
D7R LGP
914
36
5.82
9029
45.50
6.48
D8R
◀
610
24
3.91
6062
95.11
13.79
660
26
4.23
6559
87.90
12.75
710
28
4.55
7056
81.48
11.81
D8R LGP
965
38
6.29
9746
54.88
7.96
D8T
◀
610
24
3.91
6062
99.69
14.46
660
26
4.23
6559
92.14
13.36
710
28
4.55
7056
85.65
12.42
D8T LGP
965
38
6.19
9593
59.83
8.68
D8T
1
610
24
3.91
6062
99.81
14.47
660
26
4.23
6559
92.25
13.38
710
28
4.55
7056
85.75
12.43
D8T LGP
1
965
38
6.19
9593
59.90
8.68
◀
Standard shoe.
1
MeetsTier 4 Interim/Stage IIIB/Japan 2011 (Tier 4 Interim) equivalent emis-
sion standards.
MODEL
SHOE
WIDTH
CONTACT
AREA
GROUND
PRESSURE
mm in m
2
in
2
kPa psi
D9R/D9T
560
22
3.89
6031
121.8
17.67
◀
610
24
4.24
6569
111.80
16.22
685
27
4.74
7374
99.60
14.45
760
30
5.28
8185
89.80
13.02
D10T2
◀
610
24
4.74
7347
145.25
21.06
710
28
5.52
8551
124.49
18.06
760
30
5.91
9153
116.19
16.85
D11T
◀
710
28
6.31
9781
161.98
23.49
810
32
7.20
11,159
141.99
20.59
915
36
8.13
12,605
125.69
18.23
D11T CD
810
32
7.20
11,159
153.54
22.27
◀
915
36
8.13
12,605
135.92
19.71
NOTE:
Ground contact area = width of track shoe
×
length of track on ground
×
2.
Ground pressure = operating weight
ground contact area