Hatz 2-4L31 - Key to Circuit Diagrams

Key to circuit diagrams (DIN 40719)
4
L / M . . / 07.96
Key Designation of electrical component
A 1 Instrument box
A 2 Instrument panel
A 3 Automatic start-stop
A 4 Starter protection module
B 1 Temperature sensor
B 2 Speed-pulse transmitter
B 3 Oil pressure sensor
B 4 Signal horn
C 1 Condenser
E 1 Fuel filter heater
F 1 Fuse
G 1 Battery
G 2 Alternator
G 3 Flywheel generator
H 1 Generator telltale light
H 2 Oil pressure warning light
H 3 Engine overheat warning light
H 4 Air filter telltale light (maintenance switch)
H 5 Belt break warning light
H 6 Pre-heat monitor telltale light
H 7 Fan monitor warning light
H8 Remote desplay: engine light
K 1 Control relay 1 for start / start repeat interlock
K 2 Control relay 2 for pre-heating
K 3 Control relay 3 for speed control
K 4 Engine protection relay
K 5 Delaying relay
K 6 Start inhibit relay
K 7 Timer (impulse) relay
K 8 Power relay
M 1 Starter motor
MG Starter generator
N 1 Voltage regulator for starter generator
N 2 Voltage regulator for flywheel generator
N 3 Voltage regulator for alternator (unless integrated)
N 4 Pulse transmitter (additional item for synchro-regulator)
P 1 Operating hours counter
P 2 Revolution counter
P 3 Pressure gauge