Kubota EA330-E4 Series - Lubricating System

ENGINE
EA330-E4, WSM
1-S16
(2) Lubricating System
Engine Oil Pressure
1. Remove the oil signal (or oil switch) and install an oil pressure
tester (Code No. 07916-32031) (Adaptor screw size: PT 1/8).
2. Start the engine. After warming up, measure the oil pressure of
both idling and rated speeds.
3. If the oil pressure is less than the allowable limit, check the
following.
• Engine oil insufficient
• Oil pump defective
• Oil strainer clogged
• Excessive oil clearance of bearing
• Foreign matter in the relief valve
• Oil gallery clogged
* When engine oil is 100 to 120 °C (212 to 248 °F)
(When installing)
NOTE
• Check for oil leakage after installing the oil signal (or oil
switch).
9Y1211018ENS0009US0
Engine oil pressure
At idle speed
More than
50 kPa
0.5 kgf/cm
2
7 psi
At rated speed
(3000 min
-1
(rpm))
250 kPa
2.5 kgf/cm
2
36 psi
Tightening torque
Oil signal /Oil Switch
6.9 to 9.8 N·m
0.70 to 1.0 kgf·m
5.1 to 7.2 lbf·ft
Oil signal holder
15 to 19 N·m
1.5 to 2.0 kgf·m
11 to 14 lbf·ft
KiSC issued 05, 2015 A