Branson 3015h, Owner'S Manual

Page: 391 / 454

7
-
13 42hw-201601
Chapter 7 eleCtriC system
7
3015r(h)/3515r(h)/4015r(h)/F36r(h)/F42r(h) traCtOr
4.3 preheat
*
/
:
*
/2
:
5
(/
$<
%$
77
(5
<
*
/2
:
3/
8
*
%:5
*
/2
:
3/
8
*
*
/2
:
3/
8
*
*
/2
:
3/
8
*
%
%
:
&
%5
%5
(
&
%
)86(%/,1.32:(5
)86(%/,1.*/2:
%<
%/
%
/
%
:
5
%
<
%
/
*
/
%
)
5
%
*
/
:
*
/2
:
&
2
1
75
2
//
(5
*
<
*
*
<
%
)8
6(
$
*
/
%
7
3
*
(1(5$
72
5
*
**<
%:5
/
%
,*
7
.(<6:,7&+
%
5
7
)86( $
&22/$177(03
0<%
:$7(57(03*$8*(
%
<
*/2:/$03
*/2:5(/$< */2:5(/$<
:$7(57(03(5$785(6(1625
POWER
GROUND
F42W705A
The circuit related to the preheat operation is located in the left section of the above circuit diagram.
As soon as the ignition switch is turned to the ON position, preheating operation is started and the preheat
indicator on the instrument cluster is turned ON. When the ignition switch is returned to the ON position from
the START position, after-heating operation is started. However, if the engine is not started so the generator is
not operated properly, after-heating operation is not performed.
-. It receives the manual preheating signal from the ignition switch through the wiring 0.85L.
-. It receives the coolant temperature signal through the wiring 0.5LB.
-. It receives the ignition switch ON signal through the wiring 0.5RB.
-. It sends power to the preheat indicator on the instrument cluster through the wiring 0.5LW and instrument
cluster wiring (B).
-. The wiring 0.85Y is a output wiring for the glow relay coil signal. When the glow relay coil is energized by The wiring 0.85Y is a output wiring for the glow relay coil signal. When the glow relay coil is energized by The wiring 0.85Y is a output wiring for the glow relay coil signal. When the glow relay coil is energized by
this signal output, main power is directly supplied from the battery through the fusible link for preheating
and wiring 3.0Y to the glow plugs installed to each cylinder in the engine.
-. The wiring 0.5GY is connected to the terminal L which is a direct current output terminal of the generator. The wiring 0.5GY is connected to the terminal L which is a direct current output terminal of the generator. The wiring 0.5GY is connected to the terminal L which is a direct current output terminal of the generator.
This is to enable after-heating operation only when the generator is normally running.