Kubota M5640SU Workshop Manual page 97

M5640SU, M5640DT-SU, WSM
FUEL SYSTEM
Injection Pump
Pump Element
Delivery Valve
Injection Pump
Injection Nozzle Valve Seat
Item
Injection Timing
Fuel Tightness
Fuel Tightness
Injection Pressure
Valve Seat
Tightness
1-S9
Factory Specification
0.149 to 0.174 rad
(8.50 to 10.0 °) before
T.D.C.
–
10 seconds or more for
pressure falling
from 13.7 to 12.8 MPa
(from 140 to
2
130 kgf/cm ,
from 1990 to 1850 psi)
13.8 to 14.7 MPa
2
140 to 150 kgf/cm
2000 to 2130 psi
When the pressure is
12.8 MPa
2
(130 kgf/cm , 1850 psi),
the valve seat must be
fuel tightness.
ENGINE
Allowable Limit
–
13.7 MPa
2
140 kgf/cm
1991 psi
5 seconds for
pressure falling
from 13.7 to
12.8 MPa
(from 140 to
2
130 kgf/cm ,
from 1990 to
1850 psi)
–
–
9Y1210365ENS0002US0
KiSC issued 07, 2009 A