12 AB Volvo Penta / Diesel Engine TAMD71B
3.2 Control Unit – 500
The control unit consists of LEDs for indication, controls and 3 gauges. There are two alarm units
(501, 502) and one autostop unit (504). See below for alarms and autostop functions. There is also an
autostart unit (503) and an R.P.M unit (505). Start and stop of the engine is controlled by the push but-
tons (506). For operation of the control unit see chap. 5.
For further information see
“
Control and
Monitoring system”, Function and installation Publ. No. 7738014-5
.
Alarms: – fuel leakage in injection pipes
– low engine oil pressure
– high coolant temperature
– engine overspeed
– low coolant level
– high engine oil temperature
– low voltage in alarm system
– autostop engine.
Autostop: – engine overspeed
– low engine oil pressure
– low flow, engine coolant
– high coolant temperature.
Fig. 3.6 Control unit, CU-500
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