JLG 1850SJ, Руководство по обслуживанию и ремонту, Страница: 129 / 712

SECTION 3 - CHASSIS & TURNTABLE
3121619 3-79
830 146 523470 14 Rail pressure relief valve is open. (PRV) Open PRV Threshold for error detection is an internal ECU
threshold.
Only after ECU reset.
Check PRV opening counter and if necessary
replace it,
check rail-pressure sensor for plausibility and if
necessary replace it,
check FCU and if necessary replace it.
831 146 523470 11 Rail pressure relief valve can not be opened
due to the railpressure. Railpressure out of tolerance range (PRV can not
be opened by a pressure peak in this
operating point) Threshold for error detection is an internal ECU
threshold.
Check railpressure, check rail pressure sensor for
plausibility, check FCU.
832 146 523470 11 Rail pressure is out of the expected average
range.
The PRV can not be opened at this operating
point with a pressure shock. Averaged rail pressure is outside the expected
tolerance range. Threshold for error detection is an internal ECU
threshold.
Check PRV and replace if necessary.
833 2-5-3 523009 10 The pressure relief valve (PRV) has reached
the allowed opening time. Rail pressure has exceeded the trigger thresh-
old of the pressure limiting valve. Replace pressure relief valve (PRV) and reset
fault with Serdia.
839 1-4-3 523450 4 Diagnostic fault check for min error of COM
message. The sensed raw value is less than the threshold. Check cabling, check sensor and if necessary
replace it,
check connection cable and if necessary repair
or replace it.
856 134 523613 0 Rail pressure: the fuel pressure in rail calcu-
lated by ECU is below the target range which
is dependant on the engine speed. Pressure governor deviation exceeds the limit-
ing value based on the engine speed. Threshold for error detection is an internal ECU
threshold.
(A) Check for leakage
(B) Check fuel-primary pressure
(C) Change components, check sensor and if
necessary replace it, check fuel system
and if necessary repair it
857 134 523613 0 Rail pressure: the fuel pressure in rail calcu-
lated by ECU is below the target range which
is dependant on the engine speed. maximum positive deviation of rail pressure
exceeded concerning set flow of fuel. Threshold for error detection is an internal ECU
threshold.
(A) Check for leakage
(B) Check fuel-primary pressure
(C) Change components, check sensor and if
necessary replace it, check fuel system
and if necessary repair it
858 134 523613 0 Rail pressure: the fuel pressure in rail calcu-
lated by ECU is above the target range which
is dependant on the engine speed. leakage is detected based on fuel quantity bal-
ance. Threshold for error detection is an internal ECU
threshold.
(A) Check backflow pressure
(B) Check Injector function with SerDia
(C) Change components (metering unit, injec-
tor) if necessary
859 134 523613 0 Rail pressure: the fuel pressure in rail calcu-
lated by ECU is above the target range which
is dependant on the engine speed. Maximum negative rail pressure deviation with
metering unit on lower limit is exceeded. Threshold for error detection is an internal ECU
threshold.
(A) Check backflow pressure
(B) Check Injector function with SerDia
(C) Change components (metering unit, injec-
tor) if necessary
Table 3-10. Engine Fault Codes
Deutz
Code
Blink
Code
SPN FMI Description Possible Cause Action