GROUP 3 ELECTRICAL COMPONENT SPECIFICATION
Part name Symbol Specification Check
※ Check specific gravity
12V × 100Ah 1.280 over : Over charged
Battery
(2EA) 1.280 ~ 1.250 : Normal
1.250 below : Recharging
※ Check coil resistance (M4 to M4)
Rated load : 24V
Normal : About 50Ω
Battery relay 100A(continuity)
1000A(30seconds) ※ Check contact
Normal : ∞Ω
CR-1
※ Check disconnection
Reset button 24V 60A Normal : About 0Ω
Check button is up.
CS-60 CS-61
6
5
4
3
2
1
B
※Check contact
B-BR : 24V 1A
1
Ι ,O OFF : ∞Ω(For each terminal)
Start key B-ACC : 24V 10A
ON : 0Ω(For terminal 1-3 and 1-2)
B-ST : 24V 40A
ΙΙ Ι O H START : 0Ω(For terminal 1-5)
6
5
3
2
C ST ACC BR H
CS-2
Pressure switch 2 Pa 3 ~ 6kgf/cm2 ※ Check contact
(For overload) 1 (N.O TYPE) Normal : ∞(OPEN)
CD-31
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Part name Symbol Specification Check
Pressure switch Pa 0.5 kgf/cm2 ※ Check resistance
(For engine oil) (N.C TYPE) Normal : 0Ω(CLOSE)
CD-18
C 1 ※ Check resistance
Temperature 50°C : 804Ω
-
sensor 2 80°C : 310Ω
100°C : 180Ω
CD-8
CD-1
Pressure: ※ Check contact
Air cleaner Pa 635mmH2O
pressure switch Normal : ∞Ω
(N.O TYPE)
CD-10
2
※ Check contact
Coolant level
sensor 1 24V 0.5A High level : ∞Ω
Low level : 0Ω
CD-16
※ Check resistance
Full : 50Ω 6/12 : 350
2 11/12 : 100Ω 5/12 : 400Ω
10/12 : 150Ω 4/12 : 450Ω
Fuel sender - 9/12 : 200Ω 3/12 : 500Ω
1
8/12 : 250Ω 2/12 : 550Ω
CD-2 7/12 : 300Ω 1/12 : 600Ω
CD-2 Empty warning :700Ω
1
m
※ Check resistance
rp
Tacho sensor -
2 Normal : 300Ω(For terminal 1,2)
CD-17
CD-17
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Part name Symbol Specification Check
3 4 4
※ Check resistance
3
Normal : About 200Ω
Heater relay 2 24V 20A
(For terminal 1-3)
1 2 1
: 0Ω(For terminal 2-4)
CR-46
30
87a 87 85
86 ※ Check resistance
Relay 87
Normal : About 160Ω
(Horn, Safety, 85
24V 16A0 (For terminal 85-86)
Ac comp, 87a
30 86
Power, Preheat) CR-2 CR-35 : 0Ω(For terminal 30-87a)
CR-5 CR-36 : ∞Ω(For terminal 30-87)
CR-7
M- 6
6 5
M M+ 5
※ Check resistance
NC 4
2 Normal : 1-2Ω(For terminal 5-6)
Accel actuator P- 3 -
3 1
SIG 2
0.8-1.2kΩ
P+ 1 (For terminal 1-3)
CN-76
※ Check resistance
Solenoid valve 24V 1A Normal : 15~25Ω
(For terminal 1-2)
CN-66 CN-68 CN-70
CN-88 CN-133 CN-137
2 ※ Check resistance
EPPR valve 700mA Normal : 18~25Ω
1 (For terminal 1-2)
CN-75 CN-131
1
※ Check resistance
Resistor 50Ω 20W± 5%
Normal : 50Ω
2
CN-47
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Part name Symbol Specification Check
※Check resistance
Speaker 4Ω 20W
Normal : 4Ω
CN-23(LH)
CN-24(RH)
10 9 8 7 6 5 4 3 2 1
※ Check contact
10 6 5 Normal
Switch ON - 0Ω(For terminal 1-5,2-6)
(Locking type) 24V 8A
- ∞Ω(For terminal 5-7,6-8)
9 8 2 7 1
OFF - ∞Ω(For terminal 1-5,2-6)
CS-23 CS-27 CS-50
- 0Ω(For terminal 5-7,6-8)
CS-52 CS-54
8
2
7
9
1
I
※ Check contact
Normal
ON - 0Ω(For terminal 1-5,2-6)
Switch 24V 8A
5
10
- ∞Ω(For terminal 5-7,6-8)
(Quick clamp)
10
OFF - ∞Ω(For terminal 1-5,2-6)
9
3
7
2
6
1
4
5
CS-67 - 0Ω(For terminal 5-7,6-8)
2
Head lamp, ※ Check disconnection
24V 70W
Work lamp, 1
(H3 TYPE) Normal : 1.2Ω
Cab lamp
CL-4 CL-5 CL-6
CL-8 CL-9
※ Check disconnection
Room lamp 24V 10W
Nomal : A few Ω
CL-1
1 M 24V 10A ※ Check resistance
Fuel filler pump 35 ℓ/min
2 Normal : 1.0Ω
CN-61
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Part name Symbol Specification Check
1 ※ Check operation
h ・Supply powe(24V) to
Hour meter 2 16V ~ 32V
terminal No. 2 and connect
CN-48 terminal No. 1 and ground.
※ Check operation
DC 22.0 ~ 28.0V
Horn ・Supply powe(24V) to each
2A
terminal and connect ground.
CN-20 CN-25
※ Check contact
Normal : 0Ω(For terminal 1-2)
24V 15A
Safety switch 1 : ∞Ω(For terminal 1-3)
(N.C TYPE)
Operating : ∞Ω(For terminal 1-2)
: 0Ω(For terminal 1-3)
CS-4
Safety switch 2 24V ※ Check contact
Wiper cut sw (N.C TYPE) Normal : 0Ω(one pin to ground)
CS-20 CS-53
E 3
※ Check resistance
Fuel cut-off S 2 24V
Normal : 15~25Ω
I 1
CN-79
Pressure switch
(Travel, Work, Pa 2 10bar ※ Check contact
2pcs boom auto (N.C type) Normal : 0.1Ω
1
idle)
CD-6 CD-7 CD-37
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Part name Symbol Specification Check
※ Check disconnection
Beacon lamp 24V 70W
Normal : 1.1Ω
CL-7
Switch
1
(Power max,
※Check contact
One touch 2 24V 6A
decel, Breaker, Normal : ∞Ω
Horn) CS-5 CS-19
CS-26 CS-26A CS-29
※Check contact
Washer tank 24V 3.8A
Normal : 10.7Ω(For terminal 1-2)
CN-22
※Check coil resistance
Normal : About 1MΩ
Cigar lighter 24V 5A 1.4W ※ Check contact
Normal : ∞Ω
Operating time : 5~15sec
CL-2
※Check resistance
Door switch 24V 2W
Normal : About 5MΩ
CS-1
3 1
2
5 3
4
4 ※Check contact
Wiper motor 5 24V 2A
Normal : 7Ω(For terminal 2-6)
6 M 2 6
CN-21
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Part name Symbol Specification Check
N.C 1
S.R- 2
S.R- 3
S.L- 4
S.L- 5
N.C 6
ILL+
S.R+
7
8
※ Check voltage
Cassette radio S.R+
ACC
9
10
24V 2A 20 ~ 25V
B+ 11
S.L+ 12
13
(For terminal 10-14,11-14)
S.L+
GND 14
CN-27
※ Check contact
Receiver dryer 24V 2.5A
Normal : 0Ω
CN-29
※ Check contact
Start relay 24V 300A
Normal : 0.94Ω(For terminal 1-2)
CR-23
B+
M
Delco Remy ※ Check contact
Starter 28MT 24V Normal : 0.1Ω
M
CN-45
B+ G
※ Check contact
3~
Alternator 24V 60A Normal : 0Ω(For terminal B⁺-1)
Ι
U Normal : 24 ~ 27.5V
GND
CN-74
Travel alarm 1 ※ Check contact
24V 0.5A
buzzer 2 Normal : 5.2Ω
CN-81
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Part name Symbol Specification Check
1
Aircon ※ Check contact
compressor 24V 79W
Normal : 13.4Ω
CN-28
※ Check contact
Normal : 0.2Ω(For terminal 1-20)
Prolix switch 24V ~ 150V Emergency
(up to #0179) 15A : 1.2Ω(For terminal 2-3)
: 5.2Ω(For terminal 2-6
CS-7 : 0Ω(For terminal 5-6)
※ Check resistance
Normal : About 5kΩ
(For terminal A-C)
A +
※ Check valtage
Accel dial B S - Normal : About 5V
C - (For terminal A-C)
CN-142 : 2 ~ 4.5V
(For terminal C-B)
3 24V
2 SIG 0bar : 1V(For terminal 1-2)
Transducer 500 bar
1 GND 500bar : 5V(For terminal 1-2)
CD-32 CD-33
CD-42 CD-43
3 24V
0bar : 1V(For terminal 1-2)
2 SIG
Transducer 50 bar 50bar : 5V(For terminal 1-2)
1 GND
CD-44
A 24V
24V
DC/DC B GND 24V(A-B)
12V 3A
Converter C 12V 12V 12V(B-C)
CN-138
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Part name Symbol Specification Check
1 M ※ Check resistance
Blower motor 24V 9.5A
2.5Ω(For terminal 1-2)
2
1 Lo 1 ※ Check resistance
2 MH 3 1.12Ω(For terminal 4-2)
Aircon resistor -
3 ML 2 2.07Ω(For terminal 2-3)
4 Hi 4 3.17Ω(For terminal 3-1)
Duct sensor 1
1°
C OFF ※ Check resistance
(Switch) 2 4°
C ON : 0Ω(For terminal 1-2,
the atmosphere temp : over 4°
C)
※ Check contact
Preheater 24V 200A Normal : 0.94Ω
relay
(For terminal 1-GND)
CR-24
※ check resistance
Preheater 24V 200A
: 0.25 ~ 0.12Ω
※Check contact
Quick clamp 24V 6A
Normal : 28.9MΩ(For terminal 1-2)
CN-140
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Part name Symbol Specification Check
※Check disconnection
Normal : 0Ω
Fusible link 60A
(Connect ring terminal and check
resist between terminal 1 and 2)
CN-60 CN-95
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