Komatsu 114E-3 Series Shop Manual page 314

SEN00464-01
9) Measure the end play of the crankshaft
with tool L.
a End play: 0.235 ± 0.15 mm
6. Piston and connecting rod assembly
1) Lightly hit the connecting rod bolt with a
plastic hammer until its head is aligned
with the flat machined surface of the con-
necting rod and set in position.
2) Using tool D, fit piston rings (7) to the pis-
ton.
6
50 Disassembly and assembly
3) Fitting oil ring
Fit oil ring (9) so that its abutment joint will
be at 180° from the end of expander (8).
4) Fit second ring (10) with the stamp of
"TOP" near the abutment joint up.
5) Fit top ring (11) with the "dot" mark near
the abutment joint up.
6) When fitting each ring, set the abutment
joint off the thrust, anti-thrust, and piston
axis directions.
Apply engine oil (EO15W-40) to the piston
q
rings and piston skirt.
114E-3 Series