Kubota V3800-CR-TE4 Diagnosis Manual page 17

V3800-CR-TE4,V3800-CR-TIE4, DM
Classification Signal Name
Final fuel injection
quantity
Target rail pressure
Actual rail pressure
Mpa
Rail pressure sensor
output voltage
Basic
Out-
control
put
signal
Target suction control
valve (SCV) current
Actual suction control
valve (SCV) current
Pump learning
condition
Pump deviation
learning correction
value
Pressure feedback
integral guard flag
Engine stop flag
Low temperature start
mode flag
NOTE
• *1: Very occasionally, it does not shift from 3 to 2. If there is an engine malfunction on the status above,
perform the forced-relearning.
• *2: As the following value of A varies depending on pump, the table above is for guideline. If the value of
A has a wider gap than the initial learning value, there may be out of the range of the above table.
A net normal value is the value that provided by the forced-learning several times: Compared with A
12 V spec: A - 100 ≤ normal value ≤ A + 50
The current shall be used as a reference (guideline) only as this value varies depending on the pump
used.
Engine During
Unit
Stops Start-Up
0 → 120
0
3
mm (Ordinary
(Indication
/st tempera-
value - 50)
ture)
Depends on the rotation speed, load (After warm-up)
When idling: Approx. 40 to 50 MPa
(410 to 500 kgf/cm
MPa During no-load maximum speed: 95.0 to 115 MPa
(969 to 1170 kgf/cm
During acceleration : 95.0 to 130 MPa
(969 to 1320 kgf/cm
Approx. the same as the target value (Follow to
MPa –
Depends on the rotation speed, load (After warm-up)
When stopped: Approx. 1.0 V
V When idling: 1.65 to 1.80 V
During no-load maximum speed: 2.50 to 2.85 V
During acceleration: 2.5 to 3.3 V
1700 to
mA –
2000
Approx. the same as the target value
mA
(Follow to the target value)
1
Normally 2 or 3*
Indicates the following depending on the learning status: 255
–
(Default value), 1 (Provisional learning completion), 0 (Actual
learning), 2 (Actual learning completion), 3 (Relearning)
mA
–
– ON OFF
– OFF ON
1-M9
COMMON RAIL SYSTEM
During
Idling Accelera-
tion
Approx.
Approx. 12
12 → 75
(After
(After
warm-up)
warm-up)
2
, 5800 to 7200 psi)
2
, 13800 to 116600 psi)
2
, 13800 to 18800 psi)
the target value)
Approx. Approx.
1800 1400
2
±200 mA (Guideline * )
Normally OFF
OFF OFF
OFF OFF
During
No-load
Maximum
Speed
Approx. 30
(After
warm-up)
Approx.
1600
OFF
OFF
KiSC issued 05, 2012 A