Kubota Z400-B Handbuch Seite 165

Main Bearing Case
1. Remove the screws and separate the bearing case.
(When reassembling)
• Apply engine oil to the bearing surface and install the
bearing case so that its casting mark "7
-51"
and
"*1
II- ­
" (1) or the holes face the flywheel.
• Place washers with their round edge on the seat of the
screws and apply engine oil to the screws and tighten
them to the specified torque.
• Place the thrust washers with their oil groove outside.
Ii/OW'O::I;
case
Tighten ing torq ue
(1) Casting Mark
Ii / (!!I ['I):: /
Piston and Connecting Rod
1. Remove the retaining ring and the piston pin.
2. Remove the piston rings uSing a piston ring tool (Code
No.: 07909-32121).
(When reassembling)
• Install the piston rings with their manufacturer's mark up
and so that their gaps and the expander will not
positioned in line, referring to the figure_
• Apply engine oil to the piston pin and the bushing, and
install the connecting rod so that the mark on its side
positions opposite the mark "1" on the piston.
• When inserting the piston pin to the piston, heat the
1J/1).'I/'IJ::8
piston in oil (80
0
C, 176
0
F) for 10 to 15 minutes.
S-83