Electrical system
ELECTRICAL SYSTEM
IMPORTANT
3.
When starting with the help of a helper battery,
first check that the helper battery has the same
rated current as the standard one. Connect the
helper battery to the standard battery, positive to
positive and negative to negative. Remove the
helper battery when the engine has started.
Note! The cables to the standard battery must
not be broken.
With electrical welding on the engine or instal-
lation components, the charging regulator cables
must first be disconnected and insulated. Both
the battery cables must also be disconnected.
In the event of repairs to the alternator
equipment, both battery cables must first be
disconnected. The same applies if the battery
has to be rapidly charged.
82.
1.
The following applies to engines fitted with
alternators:
Never break the current between the
alternator and battery while the engine is
running. If a main switch is fitted, it must not
be switched off until the engine has stopped.
Otherwise no cable must be disconnected while
the engine is running, since this also can ruin
the charging regulator.
Check regularly the battery, battery cables and
cable terminals. The battery poles should be
well-cleaned and the cable terminals always
well-tightened and well-greased to ensure
continuous function. All cables in general must
be well-tightened, there must be no loose
connections. Note! On no account must the
battery’s positive and negative poles be mixed
up when the battery is fitted.
4.
5.
6.
2.
Never test any of the components with a
screwdriver, etc. against a terminal to see if it
sparks.
Fig. 82 Wiring diagram for the MD6A with start-generator (no rev counter and temp. gauge)
Cable Marking
1. Starter button
Des.
A”
B Bl
C
Colour
mm2
2.5
1.5
25
AWT
13
15
3
2. Key switch
Beige
Black
Red
3. Charging warning light
4. Control light for oil pressure
5. Switch
C
Red
2.5
1.5
2.5
1.5
1.5
25
13
15
13
15
15
3
6. Terminal board, instrument panel resp. engines
7. Charging regulator
D
Green
Green
Brown
Blue
D
8. Start-generator
G
9. Oil pressure indicator
10. Battery 12V, max. 60 Ah
11. Main Switch
H
H
Blue
30
| Categories | Volvo Penta Manuals |
|---|---|
| Tags | Volvo Penta MD6A, Volvo Penta MD7A |
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| Document File Type | |
| Copyright | Attribution Non-commercial |
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