Key To Circuit Diagrams (Din 40719) - Hatz 2-4L30 Workshop Manual

Key to circuit diagrams (DIN 40719)

Key Designation of electrical component
A 1 Instrument box
A 2 Instrument panel
Automatic start-stop
A 3
A 4 Starter protection module
B 1 Temperature sensor
Speed-pulse transmitter
B 2
B 3 Oil pressure sensor
B 4 Signal horn
C 1 Condenser
E 1 Fuel filter heater
F 1 Fuse
Battery
G 1
G 2 Alternator
Flywheel generator
G 3
H 1 Generator telltale light
H 2 Oil pressure warning light
H 3 Engine overheat warning light
Air filter telltale light (maintenance switch)
H 4
H 5 Belt break warning light
Pre-heat monitor telltale light
H 6
H 7 Fan monitor warning light
H 8 Remote desplay: engine light
K 1 Control relay 1 for start / start repeat interlock
Control relay 2 for pre-heating
K 2
K 3 Control relay 3 for speed control
Engine protection relay
K 4
K 5 Delaying relay
K 6 Start inhibit relay
Timer (impulse) relay
K 7
K 8 Power relay
M 1 Starter motor
Starter generator
MG
N 1 Voltage regulator for starter generator
Voltage regulator for flywheel generator
N 2
N 3 Voltage regulator for alternator (unless integrated)
Pulse transmitter (additional item for synchro-regulator)
N 4
Operating hours counter
P 1
P 2 Revolution counter
P 3 Pressure gauge
4
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