Sakai SW300-1, Shop Manual

Page: 224 / 246

10-041
TROUBLESHOOTING
Fig.: 2-6-1
IG
B
L
E
- +
SW300-1-10008
RB
1
3 4 6
7
8 9
10
2 5
20A 20A
15A 15A
20A 20A
15A 15A 15A
20A
11
12
14 13
48
3W
13
5R
8
B
WR
B
24
31
81
21
YG
L
LR
LR
L
B
B
YG
Y
Sb
B
1
3
2
RB
24
81
31 26
48
HYDRAULIC
OIL FILTER
SWITCH
FUEL
UNIT
THERMO
UNIT
ENGINE OIL
PRESSURE
SWITCH
TACHOMETER
SENSOR
YB
25
FUSE BOX
WR 2Y
ALTERNATOR
STARTER SWITCH
21 18
R1
3W
2Y
C
R2
ACC
B
13
LgR
10
18
BR
BrB
14
WR Y
5A
2
5WR
2
5WR
2
15
FUSE
BrB 14
Y 15
COMBINATION METER
RB GY W G GW GR BrW YR Y B L LB Br LW YL LR GL WR OW WB LgY OG GB R P O YW
REV RA
TIO SEL.1
PREHEA
TING
CHARGE W
ARNING
ENG. OIL
PRESS. W
ARNING
PA
RKING BRAKE
HYD. OIL
FIL
TER W
ARNING
LAMP
CHECK
COOLANT
TEMP
. METER
FUEL
METER
REV
. PULSE INPUT
2
GND VIBRA
TOR
LIQUID SPRA
Y
W
ATER SPRA
Y
FLOOD LAMP SIDE MARKER LAMP TURN SIGNAL(L) TURN SIGNAL(R) COMBI. METER ILLUMI. COOLANT
TEMP
. SEL.2
COOLANT
TEMP
. SEL.1
REV
. RA
TIO SEL.4
REV
. RA
TIO SEL.3
REV
. RA
TIO SEL.2
BA
TTER
Y 12V(+)
ST
AR
TER SWITCH (ACC)
REV
. PULSE INPUT
1
O
YL
P
LR GL WR
L LB Br LW
GY
LgY
RB
WB OW
GB
OG
W
Y
GR
YR
GW G
YW
BrW
B
R
Power
excitation
circuit
24V
ψ
12V
Voltage reduction
power supply
5 V
power
supply
Movement
Movement
Movement
LCD
CPU
EEPROM
CAN interface
Tachometer
Fuel meter
Coolant temp.
meter
Hour meter
Output interface
Output interface
Illumination LED
Water spray
indicator
Liquid spray
indicator
Side marker lamp
indicator
Flood lamp indicator
Vibration indicator
Turn signal indicator
(left)
Turn signal indicator
(right)
Parking brake
indicator
Engine oil pressure
warning indicator
Charge warning
indicator
Hydraulic
oil
filter
warning indicator
Preheating indicator
Note: The circuit in the dashed box is not mounted.
12V
12V
12V
Battery (+12V)
Starter switch (ACC)
Input
interface
TA
input interface
Frequency divider
selector
AD input interface
Input interface
Input interface
REV. pulse input.1
(pickup)
REV. pulse input.2
(square wave)
Fuel sensor
Coolant temp. sensor
REV. ratio SEL.1
REV. ratio SEL.2
REV. ratio SEL.3
REV. ratio SEL.4
Side marker lamp
Combination meter
ilumination
Turn signal (right)
Turn signal (left)
Vibrator
Liquid spray
Water spray
Flood lamp
Preheating
Parking brake
Charge warning
Engine oil pressure
warning
Lamp check
Coolant temp. SEL.1
Coolant temp. SEL.2
System configuration diagram
Hydraulic oil filter
warning
2R
34
2R
2R
LIGHTING
SWITCH
2
6
34
34
2GB
23
5
4
1
HEAD LAMP (R)
(55W)
HEAD LAMP (L)
(55W)
2GB
2GB
3
B
B
23
23
R
R
GB
23
GB
23
R
A
2 1
STARTER SWITCH
ST
ON
HEAT
OFF
C B
CC
R R B
5W
5W 5WR
LgW
65A
F. L
1 2
1
BATTERY
RELAY
F.
L
COM
BR
BATTERY
5R
5R
W
AV60
12V 80AH
95D31R
FUSE
LgR
LgW
8
10
11
7
5RW
7
15A
65A
11
NO
GND OPEN OPEN
REV RATIO SEL.
2 3 4 1
34 PULSE/REV SET(NO.3)
TEMP.CURVE SEL.
2 1
OPEN OPEN GND
TEMP. 50-103 SET(NO. 0)
COMBI.METER SET
10̲TROUBLESHOOTING̲oku.indd 10-041 10̲TROUBLESHOOTING̲oku.indd 10-041 2012/11/14 20:25:57 2012/11/14 20:25:57