Doosan GL08K, Руководство по эксплуатации и техническому обслуживанию

Страница: 93 / 206

Maintenance - 87 -
3.3.16. Piston and connecting rod

Use a piston heater to heat the piston
approximately 100 °C (212 °F) for 5
minutes.

Align the piston pin hole with the oiled
connecting rod small end and press the
piston pin (by lightly tapping with a
rubber hammer) to assemble the
connecting rod with the piston.

Nothing the direction of the piston,
make the longer side(machined with
key groove on the bearing) of the
connecting rod big end.

On the piston head surface, the longer
side connecting rod big end is in
opposite direction from the valve
seating surface as well as in the same
direction with the narrow margin of the
combustion chamber.

Install the snap rings and check to see
that it is securely assembled.

Install the piston ring in the piston using
piston ring pliers.

Identify the mark "Y" or "TOP" on the ring
end to prevent the top and bottom of the
piston ring from being interchanged and
make the marked portion face upward.
(The surface marked as "Y" is upper
surface.)
EA3M2058
EAMD088I
ED4OM021
Valve seating
Piston
Top ring
Second ring
Oil ring
ED4OM022