Kubota B1830, Workshop Manual, Page: 110 / 548

ENGINE B1830,B2230,B2530,B3030, WSM
1-S9
FUEL SYSTEM
9Y1210003ENS0002US0
Item Factory Specification Allowable Limit
Injection Pump Injection Timing 0.27 to 0.31 rad
(16 to 18 °)
before T.D.C.
–
Pump Element Fuel Tightness – 13.73 MPa
140 kgf/cm
2
1991 psi
Delivery Valve Fuel Tightness 10 seconds or more for
pressure falling
from
13.73 → 12.75 MPa
from 140 → 130 kgf/cm
2
from 1991 → 1849 psi
5 seconds or more
for pressure falling
from
13.73 → 12.75 MPa
from
140 → 130 kgf/cm
2
from
1991 → 1849 psi
Injection Nozzle Injection Pressure 13.73 to 14.71 MPa
140 to 150 kgf/cm
2
1990 to 2130 psi
–
Injection Nozzle Valve Seat Valve Seat
Tightness When the pressure is
12.75 MPa
(130 kgf/cm
2
, 1849 psi)
–
KiSC issued 05, 2012 A