BAIC Group 3 Electrical Component Service Manual PDF (EN)

GROUP 3 ELECTRICAL COMPONENT SPECIFICATION 4-21 Part name Symbol Specifications Check Battery 12V × 200Ah (4EA) ※ Check specific gravity 1.280 over : Over charged 1.280 ~ 1.250 : Normal 1.250 below : Recharging Battery relay CR-1 Rated load : 24V 100A(continuity) 1000A(30seconds) ※ Check coil resistance(M4 to M4) Normal : About 50Ω ※ Check contact Normal : ∞Ω Glow plug relay CR-24 24V 200A ※ Check contact Normal : 0.942 (For terminal 1-GND) Start key 6 5 4 3 2 1 B I ,O 1 I I OH 6 5 3 2 4 C S AC B H CS-2 B-BR : 24V 1A B-ACC : 24V 10A B-ST : 24V 40A ※ Check contact OFF : ∞Ω(For each terminal) ON : 0Ω(For terminal 1-3 and 1-2) START :

0Ω(For terminal 1-5) Pressure switch (Travel, working) 0V C SIG B 5V A CD-6 CD-7 10kgf/cm2 (N.C TYPE) ※ Check contact Normal : 0.1Ω Pressure switch (For overload, Swing) 2 Pa 1 CD-31 3~6kgf/cm2 (N.O TYPE) ※ Check contact Normal : ∞Ω 0V C SIG B 5V

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4-22 Part name Symbol Specifications Check Glow plug CN-80 24V 200A ※ Check resistance 0.25 ~ 0.12Ω Temperature sensor (Hydraulic) C 1 2 CCDD--81 - ※ Check resistance 50。C : 804Ω 80。C : 310Ω 100。C : 180Ω Air cleaner pressure switch Pa CD-10 - ※ Check contact High level : ∞Ω Low level : 0Ω Fuel sender 2 1 CD-2 - ※ Check resistance Full : 50Ω 6/12 : 350Ω 11/12 : 100Ω 5/12 : 400Ω 10/12 : 150Ω 4/12 : 450Ω 9/12 : 200Ω 3/12 : 500Ω 8/12 : 250Ω 2/12 : 550Ω 7/12 : 300Ω 1/12 : 600Ω Empty warning : 700Ω Relay 30 86 87a 87 85 87 85 87a 30 86 CR-2 CR-3 CR-5 CR-7 CR-9 CR-13 CR-35 CR-36 CR-45 CR-46 CR-62 24V 16A ※ Check resistance Normal :

About 160 Ω (For terminal 85-86) 0Ω(For terminal 30-87a) ∞Ω(For terminal 30-87 Master switch 6~36V ※Check disconnection Normal : 0.1Ω 2 1

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4-23 Part name Symbol Specifications Check Solenoid valve 1 2 CCNN--6666 CCNN-68 C CNN-7-700 CCNN--8888 CCNN-133 C CNN-1-13377 24V 1A ※ Check resistance Normal : 15~25Ω (For terminal 1-2) EPPR valve 2 1 CN-75 700mA ※ Check resistance Normal : 15~25Ω (For terminal 1-2) Resistor 1 2 CN-47 45Ω20W±5% ※Check resistance Normal : 45Ω Speaker CCNN--2233((LLHH)) CCNN--2244((RRHH)) 20W ※ Check disconnection Normal : A few Ω Switch (Locking type) 10 9 8 7 6 5 4 3 2 1 10 6 5 9 8 2 7 1 CS-23 CS-27 CS-50 CS-52 CS-54 CS-82 CS-83 CS-84 24V 8A ※ Check contact Normal ON : 0 Ω(For terminal 1-5, 2-6) ∞Ω(For terminal 5-7, 6-8) OFF :

∞Ω(For terminal 1-5, 2-6) 0 Ω(For terminal 5-7, 6-8) Accel dial A + B S C - CN-142 - ※ Check resist Normal : About 5kΩ (For terminal A-C) Normal : About 5V (For terminal A-C) : 2~4.5V (For terminal C-B) 1 2 NN--6666 CCNN-68 C CNN-7-700 NN--8888 CCNN-133 C CNN-1-13377 2 1 1 2 0 9 8 7 6 5 4 3 2 1 10 6 5 9 8 2 7 1 + S -

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4-24 Part name Symbol Specifications Check Switch 1 7 2 8 9 I 5 6 10 1 2 3 4 5 6 7 8 9 10 CS-67 24V 8A ※ Check disconnection Normal : 1.0Ω ON : 0Ω(For terminal 1-5, 2-6) ∞Ω(For terminal 5-7, 6-8) OFF : ∞Ω(For terminal 1-5, 6-8) 0Ω(For terminal 5-7, 6-8) Head lamp, Work lamp, Room lamp, Cab lamp 2 1 CL-1 CL-3 CL-4 CL-5 CL-6 CL-8 CL-9 CL-10 CL-22 CL-23 CL-40 CL-41 24V 70W (H3 Type) 24V 10W (Room lamp) ※ Check disconnection Normal : A few Ω Beacon lamp M CCL-L-7-7 21V 70A (H1 type) ※Check disconnection Normal : A few Ω Fuel filler pump 1 M 2 CN-61 24V 10A 50ℓ/min ※Check resistance Normal :

1.0Ω Hour meter + h - CN-48 16~32V ※Check operation Supply power(24V) to terminal No.2 and connect terminal No.1 and ground Horn CCNN--2200,CCNN--2255 DC22~28V 2A ※Check operation Supply power(24V) to each terminal and connect ground. M 1 2 M

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