Nilfisk-Advance CS7000 Fuel Cell EcoFlex, Service Manual

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Engine System - Petrol (Gasoline) 208 Service Manual – Haram Captor II
Engine Protection Modes
The engine will be shut off in the event that it overheats or loses oil pressure after it has been running. The
main machine controller will display a warning message to the operator for either case and will also initiate
an engine shut down as a back up measure.
In the case of lost oil pressure, the Woodward L series actuator disables the ignition system by de-energizing
the Ignition Request relay.
In the case of the engine overheating, the high coolant temperature shut down relay shuts the engine off by
removing power from the fuel pump causing the engine to run out of fuel and stall.
Engine Overheat Shutdown
• If the engine overheats, the temperature switch closes. This completes a path to ground for the high
coolant temp shut down relay and energizes the relay. This removes power from the fuel pump. This does
not shut the engine down immediately, but allows the engine to use up the fuel in the carburetor float
bowl before stalling due to lack of fuel.
• The main machine controller monitors the engine coolant temperature by sending out a 5v feed through
an internal resistor to the temperature switch. When the switch closes the voltage on the switch side
drops from 5v to 0v . In response, the main machine controller sets an overheat code and alerts the
operator. After a 5 second delay, it removes the 12v Ignition request signal. If the engine has not already
shut down, the system will then shut down as if the operator had shut off the key (Normal engine shut
off).
10A
IGN. REQUEST
15A
MAIN
5A
CONTROLLER
UNUSED
UNUSED
UNUSED
UNUSED UNUSED UNUSED
WOODWARD
FUEL LOCK-OFF
SOLENOID
N3 -0342 OR
FUEL PUMP
OIL SWITCH
(OPEN FOR
PRESSURE)
TEMP. SWITCH
(OPEN FOR
NORMAL TEMP.)
SHIELDED WIRE
RUN ENABLE SIGNAL
SHUTDOWN SIGNAL
CRANK REQUEST - BLU/PNK 16
IGNITION REQUEST - PNK 16
ENGINE RUN (12V INPUT) - GRY 16
HIGH COOLANT TEMP. (GROUND INPUT) - GRN /YEL 16
SPEED 2 (12V OUTPUT) - RED 16
SPEED 3 (12V OUTPUT) - BLACK 16
MAGNETIC
PICK-UP
(Engine RPM
Sensor)
STARTER
BATTERY
ALTERNATOR
IGNITION POWER
FOR IGNITER
IGNITION CONNECTOR
FOR PLUGGING INTO
KUBOTA IGNITION HARNESS
KUBOTA
FUEL
SOLENOID
EG551 -44790
SPEED 2 (12V OUTPUT)
GRY/BLU 16
SPEED 3 (12V OUTPUT)
GRY/ORG 16
SHIELDED WIRE
WOODWARD
AUTO CHOKE
SOLENOID
SA-4741
BLU/LT
GRN 16
HIGH COOLANT TEMP.
SHUTDOWN RELAY
1
5
4
3
2
BLK
16
CONTROL
RELAY
1
5
4
3
2
B
LK
1
6
IGNITION
REQUEST RELAY
1
5
4
3
2
RED
18
POWER
RELAY
1
5
4
3
2
RED 14
LOW OIL PRESS.
SHUTDOWN
RELAY
1
5
4
3
2
AEES RN65127
FUSE & RELAY
BLOCK ASSY
CRANK
REQUEST
RELAY
BLK/ WHT 16
RED/ GRN 16
YEL 16
S
R
P
N
M
L
F
E
D
C
B
A
K
J
H
G
S
R
P
N
M
L
F
E
D
C
B
A
K
J
H
G
CONNECTOR # 1
PACKARD 16 PIN MALE
P/N 15326863
(TO NILFISK HARNESS)
CONNECTOR #2
PACKARD 16 PIN FEMALE
P/N 15326868
(TO NILFISK HARNESS)
WOODWARD
L-SERIES
ACTUATOR
DEUTSCH
CONNECTOR
DT06 -12SA
RED 18
TO PIN A
BLK
18
BLK 18
TO PIN B
B
LK
/
W
H
T
1
6
B
LK
/
W
H
T
1
6
G
R
Y
/
B
LU
1
6
G
R
Y
/
O
R
G
1
6
RED/
BLK
14
R
ED
/B
LK
1
4
RED/BLK 16
LT BLU 16
LT
B
LU
16
GRY/
RED 16
GRY/
RED 16
G
R
Y
/
R
ED
1
6
GRY 16
G
R
Y
1
6
GRY 16
GRY 16
GRY
16
G
R
Y
1
6
GRN 16
B
LK
1
6
RED/ GRN 16
R
ED
/
G
R
N
1
6
PNK /GRN 16
PNK /GRN
16
P
N
K
/
G
R
N
1
6
P
N
K
/
B
LU
1
6
P
N
K
/
B
LU
1
6
PNK /BLU 16
PNK /BLU 16 PNK /BLU 16
PNK /BLK 16
P
N
K
/
B
LU
1
6
PUR 16
P
U
R
1
6
GRY/WHT 16
1 2 3
10k
10k
0.047µF
0.047µF
RED 16
BLACK 16
DT04 -6P
FUEL SELECT
CONNECTOR
CT00023
DT06 -6S (BLACK)
GASOLINE PLUG
CT00024
DT06 -6S (GREY)
PROPANE PLUG
FUEL PUMP (+) - PNK /YEL 16