Kubota D1503-M-DI Workshop Manual page 78

03-M-DI Series, WSM
Piston Ring and Connecting Rod
1. Remove the piston rings (1), (2), (3) using a piston ring tool (Code
No. 07909-32121).
2. Remove the piston pin (7), and separate the connecting rod (6)
from the piston (5).
(When reassembling)
• When installing the ring, assemble the rings so that the
manufacturer's mark (12) near the gap faces the top of the piston
(5).
• When installing the oil ring (3) onto the piston (5), place the
expander joint (10) on the opposite side of the oil ring gap (11).
• Apply engine oil to the piston pin (7).
• When installing the connecting rod (6) to the piston (5), immerse
the piston (5) in 80 °C (176 °F) oil for 10 to 15 minutes and insert
the piston pin (7) to the piston (5).
NOTE
• Assemble the piston (5) to the connecting rod (6) with the
FW mark (9) facing the flywheel side and the connecting rod
mark (8) facing the injection pump side.
• Mark the same number on the connecting rod (6) and the
piston (5) so as not to change the combination.
(1) Top Ring
(2) Second Ring
(3) Oil Ring
(4) Piston Pin Snap Ring
(5) Piston
(6) Connecting Rod
S-57
DIESEL ENGINE
(7) Piston Pin
(8) Mark
(9) FW Mark
(10) Expander Joint
(11) Oil Ring Gap
(12) Manufacturer's Mark
W1026376
KiSC issued 10, 2009 A