Komatsu Galeo BR380JG-1E0 Shop Manual page 85

SEN01350-00
No. Check item
a. Regular link
Shoe bolt
20
b. Master link
No. of shoes (each side)
Interference between
21
bushing and link
Interference between
22
regular pin and link
Clearance between regular pin
23
and bushing
Interference between master
*24
pin and bushing
Clearance between master pin
*25
and bushing
Height of
—
Triple-grouser
grouser
*: Dry type track link
10
10 Structure, function and maintenance standard
Tightening torque
(Nm {kgm})
490 ± 49
Triple shoe
{50 ± 5}
Tightening torque Additional tightening
(Nm {kgm}) angle (deg.)
—
Standard
size
Shaft
+0.250
59
+0.000
+0.100
38
+0.000
Standard
size
Shaft
+0.100
38
+0.000
Standard
size
Shaft
–0.100
37.8
–0.200
Standard
size
Shaft
–0.300
38
–0.400
Standard size
26
Criteria
Additional tightening
angle (deg.)
120 ± 10
Lower limit torque
(Nm {kgm})
— —
45
Tolerance
Standard inter-
ference
Hole
–0.160
0.160 – 0.390
–0.230
–0.230
0.230 – 0.380
–0.280
Tolerance
Standard
clearance
Hole
+0.200
0.200 – 0.400
–0.300
Tolerance
Standard inter-
ference
Hole
+0.030
0.02 – 0.17
–0.080
Tolerance
Standard
clearance
Hole
+1.200
1.00 – 1.60
+0.700
Repair limit
16
Unit: mm
Remedy
Retighten
—
Adjust or
replace
Lug welding,
rebuild or
replace
BR380JG-1E0