POWER TRAIN 2250 SERVICE/MAINTENANCE MANUAL
7-4
Published 11-06-15, Control # 040-13
ENGINE DIAGNOSTICS (CELECT PLUS
ENGINE)
General
The Cummins Industrial Celect Plus Engine has two
diagnostic modes:
• Off-board diagnostics that require Cummins Insite™
hardware and software, available from your local
Cummins dealer.
• On-board diagnostics that utilize warning lights to alert
the operator to engine problems during operation
(engine running) and fault codes to identify specific
problems when the engine is not running.
Controls
Figure 7-2 shows a typical arrangement of the diagnostic
and start/stop controls Manitowoc provides for the engine.
The controls are mounted either on the front console or on
the right console in the operator’s cab.
Engine Running Diagnostics
Engine Stop Light
When lit, the red engine stop light indicates the need to stop
engine as soon as safely possible.
The red engine stop light is also used with the yellow engine
warning light to flash out active fault codes when the engine
is off.
Engine Warning Light
When lit, the yellow warning light indicates the need to
repair fault at first available opportunity.
Engine Maintain Light
When lit, the white engine maintain light indicates the need
to perform engine maintenance.
Engine Off Diagnostics
To identify specific faults, proceed as follows:
1. Stop engine.
2. Move run-stop rocker or key switch to run position.
3. Move cab power switch to on (if equipped).
4. Move hand throttle from low speed to high speed and
back to low speed three times within five seconds.
5. If no active faults exist, warning and stop lights come on
but don’t flash.
6. If active faults exist, following occurs. See Table 7-4
for
a list Engine Fault Codes that can be detected.
a. Yellow warning light flashes indicating that a fault
code is about to be flashed.
b. There is a 1 to 2-second pause.
c. Red stop light flashes a three-digit code to show
which active fault has been detected (see
Figure 7-3
for example). There is a 1 to 2-second
pause between each number.
d. When code is finished flashing in red, there is a 1 to
2-second pause and yellow warning light flashes
again.
e. Same fault code flashes a second time before
advancing to next code.
CAUTION
Engine Damage Hazard!
If possible, lower lifted loads and then stop engine as soon
as possible when stop light comes on. Permanent
damage can occur if engine is run while stop light is on.
Do not run engine until fault is corrected.
FIGURE 7-2
ENGINE
MAINTENANCE
DECREMENT
ENGINE
WARNING
ENGINE
STOP
ENGINE
MAINTENANCE
ENGINE
WARNING
ENGINE
STOP
DECREMENT
INCREMENT
RUN
STOP
START ETHER INCREMENT
DIAGNOSTICS
MAIN ENGINE
AUXILIARY ENGINE
DIAGNOSTICS
AUXILIARY ENGINE
A1161
FIGURE 7-3
3 1 1
3 Flashes PAUSE 1 Flash PAUSE 1 Flash
Fault Code =