Electrical System - Atlas Copco XAS 185 JD7 Instruction Book

Electrical System

Circuit Diagram
2.7.1
S1
12V DC
10A F1
5
K4 86
85
G2
G1 R1
+
B+
D+
- B-
K5 87
30
HTR
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
14
0
1
2
3
1
2 2
3 3
4 4
K4
87 87a
8 3 3
3
S6
S2
6
K0
30
S3
87
P
P1 27 30
h
V2
Y1 K3 86
26
85
15
87
30
12 12 12 12
Figure 2.7 Circuit diagram
0 1 2 3
S1
30
87
9 9
87a
86 K2
85 H1
Temp
87a
S4
K2 30
K1
87
12 12
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
K3
87a
9 2
S8
P2 +
S
H2 85
K5
86
GENERAL S7
ALARM
12
12
87a
S5
30
87
11
K0
30
M1
M
K1 86
85
12
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