14
1310 3012 08
2.7 Electrical
System
2.7.1
Circuit Diagram
4
4
86
85
HTR
B+
K5 87
30
-
B-
D+
G2
+
G1
K4
15
12
12
12
12
30
87
K1
87a
12
K2 30
87
P1
K0
h
26
V2
Y1
27
8
87
K4
87a
3
6
K3
85
86
P
S3
87
30
30
86
85
K2
3
3
S2
S6
87a
9
5
S1
12V DC
10A
F1
2
3
2
3
3
1
2
1
0
S1
87a
87
S7
12
12
S4
12
H1
H2
Temp
GENERAL
ALARM
85
9
9
30
11
K1 86
S5
87a
M1
S
M
K0
P2 +
87
K3
30
0
1
2
3
2
12
86
K5
85
30
S8
R1
Figure 2.7 Circuit diagram
F1 Circuit
breaker
G1 Alternator
G2 Battery
H1
Temperature alarm lamp
H2 General
alarm
lamp
HTR Air inlet preheat
K0
Starter solenoid (part of
M1)
K1 Relay
K2 Relay
K3 Relay
K4 Relay
K5 Relay
M1 Starter
motor
P1 Hour
meter
P2 Fuel Level Gauge
S1 Contact
switch
(Off-On-
Override-Start)
S2 Temperature switch engine
S3 Oil pressure switch engine
S4 Lamp test switch
S5 Temperature
switch
(Compressor)
S6 Low Fuel Level switch
S7 Fuel Level sender
S8 Preheat
Pushbutton
Y1 Fuel solenoid valve
R1 Resistor
V2 Diode