Komatsu 114E-3 Series Shop Manual page 316

SEN00464-01
11) Tighten bolts (1) in the following order to
install connecting rod caps (2).
a Apply engine oil (EO15W-40) to the
threaded portions of the bolts and
inside of the connecting rod bearings.
3
Mounting bolt (Tighten both bolts
alternately):
1] 60 ± 4 Nm {6.1 ± 0.4 kgm}
2] Loosen both bolts by 360°
3] 70 ± 4.9 Nm {7.1 ± 0.5 kgm}
4] 60° ± 5°
(Use angle tightening tool J)
When not using tool J
q
Make marks on the connecting rod cap and
bolt with paint and then tighten the bolt by 60°
± 5°.
8
50 Disassembly and assembly
12) After installing the piston and connecting
rod assembly, turn the crankshaft to check
that it rotates normally.
13) Measure the side clearance between the
connecting rod and crankshaft with tool K.
a Side clearance: 0.10 – 0.30 mm
7. Front gear housing
1) Install gasket (1).
2) Install gear housing (2).
Tighten the mounting bolts in the
q
numerical order shown below: [1]
[6]
3
Mounting bolt:
39.2 ± 2.0 Nm {4.0 ± 0.2 kgm}
→
114E-3 Series