General Function Diagram (EDS)

General function diagram (EDS), engine 603.970





1 Injection pump
2 Governor
60 EGR valve
61a Orifice
61b Orifice
61d Connector (without orifice)
62 Filter
62a Filter
65 Vacuum control valve
67 Vacuum pump
72 Vacuum damper
103 Aneroid compensator (ALDA)
110 Exhaust manifold
123 Vacuum amplifier
137 Turbocharger
138 Intake manifold

B2/1 Air flow sensor with intake air temperature sensor (EDS)
B2/1a Intake air temperature sensor
B11/4 Coolant temperature sensor (EDS)
L3 Starter ring gear speed sensor
L7 Fuel rack position sensor
N39 EDS control unit
S66 Engine overload protection switch
Y22 Electromagnetic actuator electronic idle speed control (ELR)
Y30 Engine overload protection switchover valve
Y31/1 EGR valve vacuum transducer

A Intake air
B Exhaust gas
a Vent line to passenger compartment
c Remaining vacuum consumers

Pressure and vacuum connections at the vacuum transducers and vacuum amplifier

PRE Boost pressure from aneroid compensator (ALDA)
TRA to vacuum modulator valve, automatic transmission
VAC Vacuum from vacuum pump
VCV To vacuum control valve
ATM Vent line to passenger compartment
OUT to EGR valve