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Shop manual máy đào HuynDai R250: An toan, cấu trúc, sơ đồ điện, thủy lực,
4-3INLET M/ACTCoCoGROUP 2 ELECTRICAL CIRCUIT25074EL03 4-41. POWER CIRCUIT The negative terminal of battery is grounded to the machine chassis through master switch.When the start switch is in the OFF position, the current flows from the positive battery terminal asshown below.OPERATING FLOWBattery Battery relay Fusible link 〔CN-60〕Fuse box 〔No.1〕 l/conn 〔CN-8(12)〕 Start switch 〔CS-2(1)〕Power relay 〔CR-35(30)]Fuse box 〔No.2〕 I/conn 〔CN-10(6)〕 Room lamp 〔CL-1(2)〕 Door switch 〔CS-1〕Cassette radio 〔CN-27(11)〕Fuse box 〔No.3〕 l/conn 〔CN-11(4)〕 AC & Heater controller 〔CN -116(3, 4)〕Fuse box 〔No.4〕 I/conn 〔CN - 5(4)〕 I/conn 〔CN -17(5)〕 Wiper motor controller〔CN-141(7)〕Wiper motor 〔CN-21(4)〕Fuse box 〔No.5〕 CPU controller 〔CN-50(7)〕Fuse box 〔No.6〕 I/conn 〔CN-11(5)〕 Relay(Hi, M2) ※ I/conn : Intermediate connectorCHECK POINTEngine Start switch Check pointVoltage1)2)※ GND : GroundOFF OFF① - GND (Battery 1EA)② - GND (Battery 2EA)③ - GND (Battery 2EA)④ - GND (Fusible link)10~12.5V20~25V20~25V20~25V 4-5POWER CIRCUIT GYVRW2RYWFUSE BOX3L3RWR3LBPOWER RYCR-353086878587a8685873087a60B60B60RBATTERY RYCR-1BATTERYMASTER SW123456CN-878910R1112W1234567YCN-1089101112123CN-11456782R2RWCPU CONTROLLERGYBATTERY 24V(+)CN-501234567CN-589101112VGYCL-1YROOM LAMPCS-1DOOR SWYCASSETTE RADIOCN-27YGYN.CS.R-S.R-S.L-S.L-N.CILL+S.R+S.R+123456789ACC10B+11S.L+12S.L+13GND1412WRSTART KEY SWCS-261234561530I0,IH42BHBRACCSTCRW/RRW/RRW/R2R34BATTERY(+)BATTERY(+)AC & HEATER CONTROLLERRM65432123564RWIPER MOTORCN-21WIPER MOTOR CONTCN-141R123CN-1745678R7CONTINUE 24VR3124R432143213124RELAY(M2)RELAY(HI)RW72134FUSIBLE LINK CN-95125W5W CN-60123R3RSAFETY SOLSPARE2820A55ACPU B+2710A2610A2510A245A2310A225A2110A2010A1910A1820A175A1610A1510A145A1320A1220A115A105A910A85A710A620A410A35A25A120ACN-46SPAREFUEL FILLER P/PSOLENOID 3SOLENOID 1TRAVELETHER(PRE-HEAT)CIGAR LIGHTERHORNAC& HEATERBEACON LAMPCABIN LAMPWORK LAMPHEAD LAMPWIPER MOTORSTART,STOPSWITCH PANELCONVERTORCPUAC BLOWERCLUSTERCASSETTE RADIOWIPER+AC& HEATERROOM LAMPSTART KEY25074EL06 4-62. STARTING CIRCUITOPERATING FLOWBattery(+) terminal Battery relay〔CR-1〕 Fusible link 〔CN-60〕 Fuse box 〔No.1〕I/conn 〔CN-8(12)〕 Start switch 〔CS-2(1)〕When start key switch is in ON positionStart switch ON 〔CS-2(2)〕 I/conn 〔CN-8(11)〕 Battery relay 〔CR-1〕Battery relay operating (All power is supplied with the electric component) Start switch ON 〔CS-2(3)〕 I/conn 〔CN-8(10)〕 Power relay 〔CR-35(86) → (87)〕Fuse box 〔No.12〕 l/conn 〔CN-2(5)〕 Fuel cut-off 〔CN-79 (1)〕When start key switch is in START positionStart switch START 〔CS-2(5)〕 I/conn 〔CN-8(9)〕 Safety relay 〔CR-5(86) → (30)〕l/conn 〔CN-3(2)〕 Start relay 〔CR-23〕l/conn 〔CN-2(4)〕 Fuel cut off 〔CN-79(2)〕CHECK POINT1)(1)(2)2)Engine Start switch Check pointVoltageOPERATING START① - GND(Battery)② - GND(Start key)③ - GND(Battery relay M4)④ - GND(Starter B+)⑤ - GND(Starter M)⑥ - GND(Start relay)⑦ - GND(Battery relay M8)20~25V※ GND : Ground 4-7STARTING CIRCUIT25074EL07 CHECK POINT4-83. CHARGING CIRCUITWhen the starter is activated and the engine is started, the operator releases the key switch to the ONposition.Charging current generated by operating alternator flows into the battery through the battery relay(CR-1).The current also flows from alternator to each electrical component and controller through the fuse box.OPERATING FLOWWarning flowAlternator "I" terminal I/conn 〔CN-3(4)〕 CPU alternator level 〔CN-51(9)〕Cluster charging warning lamp(Via serial interface)Charging flowAlternator "B+" terminal Battery relay(M8) Battery(+) terminal Fusible link 〔CN-60〕 Fuse box1)2)(1)(2)※ GND : GroundEngine Start switch Check pointVoltageRun ON① - GND(Battery voltage)② - GND(Battery relay)③ - GND(Alternator B+terminal)④ - GND(Alternator I terminal)⑤ - GND(CPU)20~30V 4-9CHARGING CIRCUIT 25074EL08 4-104. HEAD AND WORK LIGHT CIRCUIT OPERATING FLOWFuse box (No.14) I/conn 〔CN-7(7)〕 Switch panel 〔CN-116(9)〕Fuse box (No.15) I/conn 〔CN-7(8)〕 Switch panel 〔CN-116(10,11)〕Head light switch ON Head light switch ON 〔CN-116(1)〕 l/conn 〔CN-7(1)]Head light ON 〔CL-4(2)〕l/conn 〔CN-10(2)〕 Cassette radio illumination ON 〔CN-27(7)〕l/conn 〔CN-11(8)〕 AC & Heater controller illumination ONl/conn 〔CN-6(8)〕 Cigarlight 〔CL-2〕Work light switch ON Work light switch ON 〔CN-116(2,3)〕 l/conn 〔CN-7(2)〕 l/conn 〔CN-12(1)〕Work light ON 〔CL-5(2), CL-6(2)〕CHECK POINT1)※ GND : Ground(1)(2)2)Engine Start switch Check pointVoltageSTOP ONONSTOP① - GND(Fuse box)② - GND(Switch power input)③ - GND(Switch power output) ④ - GND(Head light) ⑤ - GND(Fuse box)⑥ - GND(Switch power input)⑦- GND(Switch power output) ⑧ - GND(Work light) 20~25V20~25V 4-11START KEYROOM LAMPAC & HEATERWIPER+CASSETTE RADIOCLUSTERCPUCONVERTORSWITCH PANELFUEL CUT-OFFWIPER MOTORHEAD LAMPWORK LAMPCAB LAMPBEACON LAMPAC & HEATERHORNCIGAR LIGHTERETHER(PRE-HEAT)TRAVELSOLENOID 1SOLENOID 3FUEL FILLER PUMPSPARECN-46FUSE BOX20A15A25A310A420A610A75A810A95A105A1120A1220A135A1410A1510A165A1720A1810A1910A2010A215A2210A235A2410A2510A2610A27CPU B+5A520A28SPARESAFETY SOLENOIDAC BLOWER2141234567CN-689101112R1234567RGYCN-7891011121234567RCN-1089101112123CN-1145678RGYRGYSWITCH PANELCN-1161234567891011121314151617HEAD LIGHT OUTWORK LIGHT OUTWORK LIGHT OUTWIPER MOTOR DRIVEPRE-HEATPOWER 24VCABIN LIGHT OUTCABIN LIGHT OUTHEAD LIHGT 24VWORK LIGHT 24VWORK LIGHT 24VWASHER SIGGNDTRAVEL ALARMINT. SIGCABIN LIGHT 24VCABIN LIGHT 24VHEAD LAMPCL-4RB12RCN-27N.CS.R-S.R-S.L-S.L-N.CILL+S.R+S.R+123456789ACC10B+11S.L+12S.L+13GND14G1234567891011121314GNDGNDBATTERY(+)BATTERY(+)ILLUMINATIONPOWER IGNCDUCT SENSOR(+)DUCT SENSOR(GND)NCNCNCNCNCAC & HEATER CONTROLLER CASSETTE RADIORCIGARLIGHTCL-2YYYRYRWORK LAMP21VVBBVBCL-5CL-6CN-121212V63578HEAD AND WORK LIGHT CIRCUIT25074EL09 4-125. BEACON LAMP AND CAB LIGHT CIRCUIT OPERATING FLOWFuse box (No.17) I/conn 〔CN-8(3)〕 Beacon lamp switch 〔CN-23(6)〕Fuse box (No.16) I/conn 〔CN-7(12)〕 Switch panel 〔CN-116(16, 17)〕Beacon lamp switch ONBeacon lamp switch ON 〔CS-23(2)〕 Switch lndicator lamp ON 〔CS-23(9)〕l/conn 〔CN-8(4)〕 l/conn 〔CN-10(10)〕Beacon lamp ON 〔CL-7〕Cab light switch ONCab light switch ON 〔CN-116(7, 8)〕 I/conn 〔CN-7(6)〕 I/conn 〔CN-10(11)〕Cab light ON 〔CL-8(2), CL-9(2)〕CHECK POINT 1)2)(1)(2)※GND : GroundEngine Start switch Check pointVoltageSTOPSTOPONON① - GND(Fuse box)② - GND(Switch power input) ③ - GND(Switch power output)④ - GND(Beacon lamp)⑤ - GND(Fuse box)⑥ - GND(Switch power input)⑦ - GND(Switch power output)⑧ - GND(Cab light)20~25V20~25V [...]... 〔CN-116(12)〕 I/conn 〔CN-7(9)〕 I/conn 〔CN-5(1)〕 I/conn 〔CN-17(7)〕 Wiper motor controller 〔CN-141(9) → (8)〕 I/conn 〔CN-17(6)〕 I/conn 〔CN-6(11)〕 Washer pump 〔CN-22(1)〕 Washer operating Wiper switch ON 〔CN-116(4)〕 I/conn 〔CN-7(3)〕 I/conn 〔CN-6(9)〕 I/conn CN-17(2)〕 〔 Wiper motor controller 〔CN-141(2) → (4)〕 Wiper motor operating 〔CN-21(2)〕 (5) Auto parking(When switch OFF) Switch OFF 〔CN-116(4)〕 Wiper motor... 〔CN-116(15)〕 I/conn CN-9(4)〕 I/conn CN-6(10)〕 I/conn CN-17(8)〕 〔 〔 〔 Wiper motor controller 〔CN-141(10) → (3)〕 Wiper motor intermittently operating 〔CN-21(6)〕 (3) Wiper switch ON : 2nd step(Low speed) Wiper switch ON 〔CN-116(4)〕 I/conn 〔CN-7(3)〕 I/conn 〔CN-6(9)〕 I/conn CN-17(2)〕 〔 Wiper motor controller 〔CN-141(2) → (4)〕 Wiper motor operating 〔CN-21(2)〕 (4) Washer switch ON Washer switch ON 〔CN-116(12)〕... W Y GND 1 24V 3 2 G CN-15 SIG CD-42 CN-15 1 1 2 2 24V R 5 CD-37 BREAKER Pa 5 Y 1 B 7 1 6 2 2 CD-7 9 Pa 8 10 B CS-27 R 10 2 9 1 2 CD-6 1 Pa 1 6 5 4 3 2 1 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 9 8 2 7 ELECTRIC CIRCUIT FOR HYDRAULIC OVERLOAD SW CN-6 1 4 L/W 5 G CN-66 1 2 10 BREAKER SOL 11 1 12 3 2 4 CN-8 2 1 3 OR GY CD-31 1 Pa 12 OVERLOAD PS CN-68 1 2 B CN-81 SAFETY SOL 1 TRAVEL... AND CAB LIGHT CIRCUIT 25074EL10 4 - 13 6 WIPER AND WASHER CIRCUIT 1) OPERATING FLOW (1) Key switch ON Fuse box (No.11) Fuse box (No.4) Fuse box (No.13) I/conn 〔CN-7(5)〕 Switch panel 〔CN-116(6)〕 I/conn 〔CN-5(4)〕 I/conn 〔CN-17(5)〕 Wiper motor controller 〔CN-141(7)〕 Wiper motor 〔CN-21(4)〕 I/conn 〔CN-6(5)〕 l/conn 〔CN-17(4)〕 Wiper motor controller 〔CN-141(6)〕 Washer pump 〔CN-22(2)〕 (2) Wiper switch ON : 1st... TOUCH DECEL CS-4 3 B GY 9 B GY ALTERNATOR LEVEL B 1 R CS-19 Y CN-4 8 B 7 POWER MAX GND(PRESS SENSOR) C Y 6 2 24V(PRESS SENSOR) 1 B 5 CS-29 OR BOOM UP PS PUMP3 PRESS 4 A 1 NC 2 2 ENGINE OIL PS G TRAVEL ALARM SW 1 3 Y CD-44 3 1 Y/W 2 2 W R 1 3 POWER MAX SW SIG V CN-51 GND BR WORKING PS 24V R CD-43 B 2 PUMP1 PRESS W B W B BR/OR GND 1 1 G W CD-1 SIG 2 R oC R R 2PCS BOOM AUTO-IDLE PS B OR CS-26 Y/W W Y GND... switch Check point ① - GND(Fuse box) ② - GND(Switch power input) ③ - GND(Switch power output) STOP ON ④ - GND(Wiper Power input) ⑤ - GND(Wiper power output) ⑥ - GND(Wiper motor) ※ GND : Ground 4 - 14 Voltage 24V 0 ~ 5V 0 or 24V 2 3 4 5 WORK LIGHT OUT WORK LIGHT OUT WIPER MOTOR DRIVE PRE-HEAT 6 14 15 16 17 TRAVEL ALARM INT SIG CABIN LIGHT 24V CABIN LIGHT 24V SWITCH PANEL WIPER MOTOR 4 - 15 6 5 4 3 2 1 5... 2 GY/W BR L W 1 CN-6 V L L GY/W L 20A AC BLOWER 10A 5A CPU B+ CPU 10A WIPER+ V BR V R GY/W B W CN-17 12 11 10 9 8 7 6 5 4 3 2 1 CN-5 12 11 10 9 8 7 6 5 L W V 5A 5A 20A AC & HEATER ROOM LAMP START KEY CN-46 GY/W L OR CS-53 3 4 1 V R GY/W B R L W G L G R GY R BR WIPER CUT SW GND 1 2 MOTOR DRIVE SIG CN-141 2 4 FEED BACK M 13 3 6 12 WASHER SIG GND L 2 5 11 WORK LIGHT 24V L 2 1 CN-7 1 CN-21 9 10 CABIN LIGHT... 31 32 33 34 BRAKE FAIL LAMP TRAVEL BUZZER PRE-HEAT SW NC PARKING SW OVERLOAD SIG ENG OIL FILTER SW NC ACCEL ACT (-) POWER IG NC NC NC GND (MAIN) SERIAL-TX SERIAL-RX GND RS232 (+) RS232 (-) RS232 (GND) TRAVEL 8 L/W B 9 B 10 11 6 5 Y V 7 2 SAFETY SW R G Y BOOM POWER PRIORITY1 MAX R 7 BR/W B 2 GY 1 6 CN-137 9 R GY L/W GY 2 8 1 R G/W Y W G V W B CN-88 1 2 CN-133 1 2 36 14 T/M OIL LAMP 35 13 TRAVEL SPEED... LIGHT OUT CN-116 7 6 5 4 3 2 1 CN-9 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 WIPER AND WASHER CIRCUIT CN-22 1 M WASHER PUMP DO-5 DIODE 21EA-50550 1 2 3 5 6 WIPER MOTOR CONTROLLER 25074EL14 CONTROLLER CIRCUIT 25074EL11 4 - 16 TRAVEL PS WORK PS HYD TEMP 30 31 32 33 34 35 36 GND (SENSOR) PUMP PROLIX SW WATER TEMP SENDOR HYD TEMP SENDOR NC NC CPU CONTROLLER 4-1 7 15 16 17... 10A 5A ETHER(PRE-HEAT) 10A 10A CASSETTE RADIO CIGAR LIGHTER 5A CLUSTER 5A ROOM LAMP 5A 10A 10A 10A 20A SOLENOID 1 SAFETY SOLENOID SOLENOID 3 FUEL FILLER PUMP SPARE SPARE R R OR FUSE BOX 10A TRAVEL Y GY BREAKER PUMP EPPR(+) 11 ANTI-RESTART RY V CS-20 9 R 10 6 NC 5 PROGRAM DUMP GY 8 4 PUMP EPPR (-) OR 7 B 6 BR BATTERY 24V(+) 6 CO CANCEL SOL CN-1 5 GY 4 BREAKER SW ENGINE PREHEATER 7 HOUR-METER 3 L/W GY . SOLCN-66BGYBOVERLOAD PSCD-31L/W 122 1Pa 121 23456CN-678910G1112GY 123 4567CN-889101112GYGL/WORGYOVERLOAD SWCS-50BORCS -2 6 BREAKER1 .25 B1 .25 BBGYORGYCS -2 7 BREAKER SW23456RCN-1WB 123 24VSIGGNDWGR 123 24VSIGGNDWGRPUMP3. PUMPSPARECN-46FUSE BOX20A15A25A310A 420 A610A75A810A95A105A1 120 A 122 0A135A1410A1510A165A1 720 A1810A1910A2010A215A 221 0A235A2410A2510A2610A27CPU B+5A 520 A28SPARESAFETY