Komatsu 114E-3 Series, Руководство по ремонту, Страница: 315 / 342

50 Disassembly and assembly SEN00464-01
114E-3 Series
7
7) Set the piston and connecting rod.
q
Set the “FRONT” mark at part ( A ) of
piston (4) up and check that the
counter mark of the connecting rod
cap is at part (
B ) of connecting rod (2)
at this time.
1] Apply engine oil (EO15W-40) to the
piston pin hole and piston pin.
2] Insert piston pin (6) and install piston
(4) to connecting rod (2).
3] Install snap rings (5) to both sides.
8) Install bearings (12) to connecting rod (2)
and connecting rod cap (1).
q
Check that the back side of the bear-
ing is free from foreign matter.
q
Set projection ( E ) of the bearing to
cuts ( F ) of the connecting rod and
cap.
9) Set the crankshaft to the bottom dead
center of the cylinder to install the piston
and apply engine oil (EO15W-40) to the
inside of the cylinder.
10) Set the “FRONT” mark of piston (4) on the
front side of the cylinder block and insert
the piston and connecting rod assembly.
a
Check the directions of the abutment
joints of the piston rings again.
a
When inserting the connecting rod,
take care not to damage the wall of
the cylinder.
a
When inserting the connecting rod,
take care not to hit the cooling nozzle
with it.
q
Using tool E , reduce the piston rings
and push in the piston head with a
wood bar, etc.