Volvo Penta D2-55 Workshop Manual

89
Group 30 Electrical system
Electrical components
Relay box with fuses
The engine is equipped with a fuse block with four fus-
es (15A). One fuse safeguards the electrical system
and blows if overloaded, the others are spares.
If a fuse blows, the electrical system can be recon-
nected by moving the cable to the next fuse/connec-
tor. Always first investigate the reason for the over-
load.
Monitors
Lube oil pressure monitor - alarm
Contact type: Normally open. The contacts close if
the lube oil pressure in the engine drops below
0.3 ± 0.15 bar.
Check of the closing point is done with falling pres-
sure.
Coolant temperature monitor - alarm
Contact type: Normally open. The contacts close if
the coolant temperature rises above 95
o
C ± 3
o
C.
Check of the closing point is done with rising temper-
ature.

Volvo Penta D2-55 Specifications

General

Engine Type	Diesel
Number of Cylinders	4
Power Output	55 hp
Aspiration	Naturally aspirated
Alternator	115 A
Fuel System	Direct injection
Bore x Stroke	84 mm x 100 mm
Cooling System	Freshwater cooling with heat exchanger
Width	523 mm
Displacement	2.2 l (134 cu in)