Kubota U20-3 Workshop Manual page 57

U20-3, U25-3 WSM
[3] Rubber crawler
Crawler assy code No.
Identification mark
(Core steel rapping position)
A : Lug height
B : Link height
C : Crawler width
D : Crawler sag distance
E : Crawler height
Number of Core Iron
Rubber crawler center round
length
Core Iron pitch
Rubber thickness
[4] Iron crawler
Crawler assy code No
Crawler width
1) 4 links length (A)/(B)
2) Height (A)/(B)
3) Bushing O.D. (A)/(B)
4) Bushing I.D. (A)/(B)
5) Master pin O.D. (A)/(B)
6) Grouser Height (A)/(B)
7) Crawler sag distance (1)
Number of links
Rubber crawler
B
F
C
7)
Unit U20-3
RB411-2231-0
∞
mm 22
mm 21
mm 250
mm 10 ~ 15
mm 72
mm 84
mm 3948
mm 47
mm 51
Unit U20-3
RB411-2210-0
mm 250
mm 360/
mm 56/
mm 22/
mm 14/
mm 14/
mm 16.5/
mm 75 ~ 80
43
Iron crawler
E
1)
A
8)
D
II-S-8
Machine body (Service section)
U25-3
RB511-2231-0
∞
25
21
300
10 ~ 15
80.5
80 FCD450T
4240
53
59.5
U25-3
RC308-2210-0
300
406/
68/
28/
17/
17/
16.5/
75 ~ 80
41
(A)New machine reference value
(B)Allowable limit
6)
2)
Remarks
Remarks
3)
4)
5)