Komatsu 114E-3 Series Shop Manual page 95

10 Structure, function and maintenance standard
No. Check item
Inside diameter of connecting rod
1
bushing (when bushing is installed)
Inside diameter of connecting rod
2
bearing
3 Thickness of connecting rod bearing
Inside diameter of connecting rod
4
bearing mounting hole
Tightening torque for connecting rod
5 cap mounting bolt
(Coat thread of bolt nut with engine oil)
6 Side clearance of connecting rod
114E-3 Series
45.023 – 45.035
76.045 – 76.095
2.459 – 2.471
80.987 – 81.013
Procedure
1st stage
2nd stage
3rd stage
4th stage
0.100 – 0.300
Criteria
Target (Nm {kgm})
60 {6.1}
Loosen
70 {7.1}
Retighten 60°
SEN00176-02
Unit: mm
Remedy
Replace bushing
(spare part is
semi-finished part)
Replace connect-
ing rod bearing
Replace connect-
ing rod
Tighten and
retighten
Replace connect-
ing rod
25