Kubota SM-E4B Series User Manual

ENGINE
SM-E4B SERIES, WSM
1-S10
FUEL SYSTEM
Item Factory Specification Allowable Limit
Injection Pump
[Z482/D602-E4B]
Injection Timing
(3600 min
-1
(rpm))
0.3186 to 0.3447 rad
(18.25 to 19.75 °)
before T.D.C.
–
Injection Pump
[D722-E4B]
Injection Timing
(3200 min
-1
(rpm))
0.3360 to 0.3621 rad
(19.25 to 20.75 °)
before T.D.C.
–
Injection Pump
[D782-E4B]
Injection Timing
(3200 min
-1
(rpm))
0.2837 to 0.3097 rad
(16.25 to 17.75 °)
before T.D.C.
–
Injection Pump
[D902-E4B]
Injection Timing
(3600 min
-1
(rpm))
0.3186 to 0.3447 rad
(18.25 to 19.75 °)
before T.D.C.
–
Pump Element Fuel Tightness – 13.73 MPa
140.0 kgf/cm
2
1991 psi
Delivery Valve Fuel Tightness 10 seconds
13.73 → 12.75 MPa
140.0 → 130.0 kgf/cm
2
1991 → 1849 psi
5 seconds
13.73 → 12.75 MPa
140.0 →
130.0 kgf/cm
2
1991 → 1849 psi
Injection Nozzle Injection Pressure 13.73 to 14.70 MPa
140.0 to 150.0 kgf/cm
2
1992 to 2133 psi
–
Injection Nozzle Valve Seat Valve Seat
Tightness
When the pressure is
12.75 MPa
(130.0 kgf/cm
2
,
1849 psi), the valve seat
must be fuel tightness
–
KiSC issued 01, 2013 A

Kubota SM-E4B Series Specifications

General

Brand	Kubota
Model	SM-E4B Series
Category	Engine
Language	English