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FOREWORD This Manual (Volume 2) contains diagnosis, service procedures of electrical controller and display of the TOYOTA ELECTRICAL POWERED FORKLIFT 8FBN15 to 30, 50-8FBN15·18·20 series For maintenance, specifications and repair procedure for the chassis, body and material handling system, refer to Volume (Pub No CE349) Please use these manuals for providing quick, correct servicing of the corresponding forklift models This manual deals with the above models as of January, 2012 Please understand that disagreement can take place between the descriptions in the manual and actual vehicles due to change in design and specifications Any change or modifications thereafter will be informed by Toyota Industrial Equipment Parts & Service News SECTION INDEX NAME SECTION GENERAL BATTERY CHARGER (OPT) CONTROLLER DISPLAY FUNCTIONS TROUBLESHOOTING FRONT MODULE REAR AXLE STEERING BODY MATERIAL HANDLING SYSTEM 10 MAST 11 CYLINDER 12 SAS-ε FUNCTIONS (OPT) 13 MATCHING 14 APPENDIX 15 Section indicated by solid characters are included in this manual Section indicated by half-tone characters: Refer to vol (Pub No CE349) 3-1 CONTROLLER Page GENERAL 3-2 COMPONENTS .3-10 BEFORE REPAIR 3-11 INSPECTION 3-11 CONNECTOR INSPECTION 3-12 TO USE SST 3-12 INSPECTION 3-12 MAIN CONTROLLER 3-30 REMOVAL·INSTALLATION 3-30 MATERIAL HANDLING AC DRIVER .3-33 REMOVAL·INSTALLATION (1 ton series and 50-8FBN20) 3-33 REMOVAL·INSTALLATION (2 · ton series, except 50-8FBN20) 3-36 10 DRIVE AC DRIVER 3-38 11 OCL MEASUREMENT 3-39 12 13 14 3-2 GENERAL MAIN CONTROLLER G85703001_ Caution: When replacing the main controller,always check the part No 3-3 CONNECTOR-PIN ASSIGNMENT CN101 CN102 CN103 CN104 G85703002_ CN101 No TERMINAL NAME CIRCUIT CODE REMARKS 102 SOLLU+ SOLLU+ UNLOAD, LIFT+ 103 SLTFB+ SLTFB+ TILTF, R+ 104 FAN+ FAN+ RYR, FAN+ 105 VBBT VBBT VBBT 106 SLLA2+ SOL1, 4+ SOL1, 4+ 107 SLTA1+ SOL2, 3+ SOL2, 3+ 108 - SOL5+ SOL5+ 109 - SOL5B SOL5B 110 - SOL5A SOL5A 111 SA1PL- SOL3B SOL3B 112 SA1PS- SOL3A SOL3A 113 STPL- SOL2B SOL2B 114 STPS- SOL2A SOL2A 115 SA2PL- SOL4B SOL4B 116 SA2PS- SOL4A SOL4A 117 SLPS- SOL1A SOL1A 118 SLPL- SOL1B SOL1B 119 VBBA (only ton series) VBBA VBBA 120 VBKY VBKY VBKY 121 VRTA+ VRTA+ TILT ANGLE SENSOR POWER SUPPLY 122 - VRS+ SWING ANGLE SENSOR POWER SUPPLY 123 VRA- VRA- ACCELERATOR SENSOR GND 124 VRTRA+ VRTRA+ TIRE ANGLE SENSOR POWER SUPPLY 125 VRH+ VRH+ HEIGHT SENSOR POWER SUPLLY 126 VRL+ VRL+ LIFT LEVER SENSOR POWER SUPPLY 127 VRA2+ VRA2+ ACCELERATOR SENSOR POWER SUPPLY 128 VRA1+ VRA1+ ACCELERATOR SENSOR POWER SUPPLY 129 VRT+ VRT+ TILT LEVER SENSOR POWER SUPPLY 130 VRAT1+ VRAT1+ ATTACHMENT LEVER SENSOR POWER SUPPLY 131 VRAT2+ VRAT2+ ATTACHMENT LEVER SENSOR POWER SUPPLY 132 - VRAT3+ ATTACHMENT LEVER SENSOR POWER SUPPLY 133 POT- POT- GND3 134 VRB2+ VRB2+ BRAKE SENSOR POWER SUPPLY 135 VRB1+ VRB1+ BRAKE SENSOR POWER SUPPLY 10 11 12 13 14 3-4 CN102 No TERMINAL NAME CIRCUIT CODE REMARKS 67 - FNDC1 FAN1 68 - FNDC2 FAN2 69 VBMBSL VBMBSL VBMBSOL 70 VBMBSL VBMBSL VBMBSOL 71 SOLCOM SOLCOM SOLCOM 72 SOLCOM SOLCOM SOLCOM 73 SLS+ SLS+ KNOB, MPS+ 74 - OACC3 ACCESSORY (for FORWARD) 75 - OACC2 ACCESSORY (for REVERSE) 76 LS- LS- GND2 77 - OACC1 ACCESSORY (for BRAKE) 78 - RY2- RYR2 79 RY1- RY1- RYR1 80 SLS- SLS- KNOB- 81 - MPS- SLDM-(MPS-) 82 SLLL- SLLL- LIFT- 83 - SLUL- UNLOAD- 84 - SLTBL- TILTR- 85 SLTFL- SLTFL- TILTF- 86 VRA12 VRA12 ATTACHMENT LEVER SENSOR 87 VRA11 VRA11 ATTACHMENT LEVER SENSOR 88 VRT2 VRT2 TILT LEVER SENSOR 89 VRT1 VRT1 TILT LEVER SENSOR 90 CSBAT CSBAT BATTERY CURRENT SENSOR 91 VRB2 VRB2 BRAKE SENSOR (combined with SW) 92 POT- POT- GND4 93 - CHK5V 5V POWER SUPPLY for CHECK 94 VRA22 VRA22 ATTACHMENT LEVER SENSOR 95 VRA21 VRA21 ATTACHMENT LEVER SENSOR 96 VRA1 VRA1 ACCELERATOR SENSOR 97 VRTRA VRTRA TIRE ANGLE SENSOR 98 VRA2 VRA2 ACCELERATOR SENSOR 99 VRB1 VRB1 BRAKE SENSOR (combined with SW) 100 - VRS SWING ANGLE SENSOR 101 CSBAT- CSBAT- BATTERY CURRENT SENSOR GND 3-5 CN103 No TERMINAL NAME CIRCUIT CODE REMARKS 32 - SLSW+ SWING+ 33 - SLSW- SWING- 34 DGND DGND DISPLAY GND 35 KYSAT KYSAT KEYSTART 36 N2 N2 N2 37 LS- LS- GND4 38 - SMTSA SMTSA 39 IPL+ IPL+ SHOCK SENSOR POWER SUPPLY 40 - CAN2H CAN2H 41 - CAN2L CAN2L 42 CAN1H CAN1H CAN1H 43 CAN1L CAN1L CAN1L 44 SSTR+ SSTR+ STEERING WHEEL ANGLE SENSOR AND ULTRA SONIC SENSOR POWER SUPPLY (combined use) 45 D7V D7V DISPLAY POWER SUPPLY 46 - CHK15V 15V POWER SUPPLY for CHECK 47 - CHK33V 3.3V POWER SUPPLY for CHECK 48 VRTA VRTA TILT ANGLE SENSOR 49 VRL2 VRL2 LIFT LEVER SENSOR 50 IPL2 IPL2 SHOCK SENSOR 51 - SSTMA SSTMA 52 - SMTSK SMTSK 53 - SSTMK SSTMK 54 - OPTSS2 OPTSS2 55 SH2-1 SH2-1 LIFTING HEIGHT SWITCH 2-1 56 SHL SHL HEIGHT LIMIT SWITCH 57 VRL1 VRL1 LIFT LEVER SENSOR 58 - SYR YAW RATE SENSOR 59 VRH VRH HEIGHT SENSOR 60 SPLF SPLF PRESSURE SENSOR 61 IPL1 IPL1 SHOCK SENSOR 62 - SH2-2 LIFTING HEIGHT SWITCH 2-2 63 STK STK AUTOMATIC FORK LEVELING SWITCH 64 - OLM+ LASER POINTER POWER SUPPLY 65 - VRA32 ATTACHMENT LEVER SENSOR 66 - VRA31 ATTACHMENT LEVER SENSOR (SWITCH for 4/5-way) 10 11 12 13 14 3-6 CN104 No TERMINAL NAME CIRCUIT CODE REMARKS B48V B48V B80V(B48V) VBMB VBMB VBMB CBAT+ CBAT+ MB, P+ N2 N2 N2 N2 N2 N2 N2 N2 N2 - N2 N2 FNDC MP- MP- CBAT- CBAT- MB- 10 CSBAT+ CSBAT+ BATTERY CURRENT SENSOR POWER SUPPLY 11 - SYR- YAW RATE SENSOR GND 12 SPLF+ SPLF+ PRESSURE SENSOR POWER SUPPLY 13 - SYR+ YAW RATE SENSOR POWER SUPPLY 14 PSACC+ PSACC+ ACCESSORY POWER SUPPLY 15 PSSW+ PSSW+ POWER SUPPLY for MINI LEVER SWITCH (LOAD METER, AUTOMATIC FORK LEVERING and SWITCH for 4/5-WAY SW) 16 - CHKG CHKG 17 - OPT2 OPT2 18 SDM SDM SEAT SWITCH 19 DSR DSR DIRECTION SWITCH REVERSE 20 SPB SPB PARKING BRAKE SWITCH 21 - OPTSSC OPTSSC 22 SH1 SH1 LIFTING HEIGHT SWITCH 23 SWBK SWA SWA 24 SSTRC SSTRC STEERING WHEEL ANGLE SENSOR (only SSC combined with SW) 25 - OPTSS1 OPTSS1 26 DSF DSF DIRECTION SWITCH FORWARD 27 - LSOPT1 LSOPT1 28 SHS SHS HEIGHT SELCTOR SWITCH 29 - BMP BMP 30 SSTR1 SSTR1 STEERING WHEEL ANGLE SENSOR (only SSC combined with SW) 31 SSTR2 SSTR2 STEERING WHEEL ANGLE SENSOR (only SSC combined with SW) 3-7 DRIVE·MATERIAL HANDLING AC DRIVER ton model Applicable model : 8FBN15 8FBN16 8FBN18 Material Handling AC Driver RH side of vehicle Vehicle front side Drive AC Driver Applicable model : 50-8FBN15 50-8FBN18 Material Handling AC Driver RH side of vehicle Vehicle front side Drive AC Driver G85703003_ 5-236 Inspection 1: Check the voltage of the AC power supply Portions to be checked Standard Each AC power supply terminal 191 to 220V Inspection 2: Check the AC power plug Portions to be checked Standard Each AC power plug terminal 191 to 220V Inspection 3: Check the wire connection Remove the operation panel and check the wire connection of the terminal R and S on the back of the insert point of the AC power plug Back of the insert point of the AC power plug Terminal R Terminal S Inspection 4: Check the harness Disconnect the CN69 and CN70 connectors and visually check inside each connector and the caulked portion of each wire for defects and then check each harness (Refer to BEFORE TROUBLESHOOTING) Portions to be checked Standard CN69-2 to CN70-25 Continuity CN69-3 to CN70-2 Continuity Inspection 5: Check the display function of the charging screen Disconnect the CN69 connector and short-circuit the CN69-2 and CN69-3 connectors on the main harness side Check if the charging screen appears on the display 5-237 Error Code - (The magnet switch is not closed when a START button is pressed) Related portion ton series F6 CN104-1 (18, B80V) Main controller CN104-1 (41, B48V) Main controller 1·2 ton series F5 CN101-4 (41, VBBT) Transformer Thermoswitch FCH P2 Transformer CN68-2 CN70-4 (14, DGND) CN68-1 CN70-28 (139, SWTT) CN70-3 (169, TGND) CN70-5 (16, D7V) CN70-15 (146, CAN1L) CN70-16 (145, CAN1H) CN70-18 (43, VBKY) CN61 CN70-36 (N1,N1) N2 AC Power supply AC Power plug Power cable Operation panel Magnet switch CN69-1 CN70-33 (132, CHMS) CN69-2 CN70-25 (129, CHAC) CN69-3 CN70-2 (130, CGND) CN69-4 CN70-1 (128, CH7V) CN69-5 CN70-24 (121, SW3) CN69-7 CN70-22 (123, SW1) CN69-8 CN70-32 (124, LED4) CN69-9 CN70-29 (125, LED3) CN69-10 CN70-30 (126, LED2) DISPLAY (95, MSCH) Probable cause: (1) Wire connection defect (4) Magnet switch defect (2) Harness defect (5) Display defect (3) Operation panel defect *For causes other than listed above, refer to ALTHOUGH THE AC POWER PLUG IS CONNECTED, THE CHARGING SCREEN DOES NOT APPEAR ON THE DISPLAY 5-238 Inspection: Check of the display screen Charging screen does not Refer to ALTHOUGH THE AC appear POWER PLUG IS CONNECTED, THE CHARGING SCREEN DOES NOT APPEAR ON THE DISPLAY Charging screen appears Inspection : Wire connection check Turn off the key switch and disconnect the AC power NG plug and battery plug Check the wire connection Wire connection defect OK Inspection : Operation button check Disconnect the CN69 connector and perform the check NG Operation panel defect OK Inspection : Harness check Disconnect the CN69 and CN70 connectors and perform the check NG Harness defect OK Inspection: Check of display function of the charging screen Connect the battery plug and AC power plug Press “START” button of the charger and check the display NG (Charging screen does not appear) Display defect OK (Charging screen appears) Inspection : Check of the voltage of the magnet switch OK Turn off the key switch and disconnect the power plug and battery plug Disconnect the CN61 connector and connect the battery plug and AC power plug to perform the check Magnet switch defect NG Inspection 5: Harness check Turn off the key switch and disconnect the AC power NG plug and battery plug Disconnect the CN69 and 70 connectors and perform the check Harness defect OK Operation panel defect (*1) *1 If the symptom persists after replacement of the operating panel, there should be any other problems, so replace the Display 5-239 Inspection 1: Check the wire connection Check if the CN69 and CN70 connectors are connected correctly Inspection 2: Check the operation button Disconnect the CN69 connector and visually check inside the connector and the caulked portion of each wire for defects (Refer to BEFORE TROUBLESHOOTING) Operation Portions to be checked Standard Hold down the "STOP" button CN69-5 to CN69-3 (Operation panel side) Continuity Hold down the "START" button CN69-7 to CN69-3 (Operation panel side) Continuity Release the "STOP" button CN69-5 to CN69-3 (Operation panel side) No continuity Release the "START" button CN69-7 to CN69-3 (Operation panel side) No continuity Inspection 3: Check the harness Disconnect the CN69 and CN70 connectors and visually check inside the connector and the caulked portion of each wire for defects (Refer to BEFORE TROUBLESHOOTING) Portions to be checked Standard CN69-7 to CN70-22 Continuity CN69-5to CN70-24 Continuity CN70-22 to CN70-24 No continuity CN70-22 to CN70-2 No continuity CN70-22 to CN70-3 No continuity CN70-22 to CN70-4 No continuity CN70-22 to CN70-36 No continuity 5-240 Inspection 4: Check the voltage of the magnet switch Disconnect the CN61 connector, connect the AC power plug and press the “START” button of the charger Portions to be checked Standard A1 to 96 191 to 220V Press the “STOP” button of the charger Portions to be checked Standard A1 to 96 0V A1 FW-1S 96 CLK-50JT Inspection 5: Check the harness Disconnect the CN69 and CN70 connectors and visually check inside the connector and the caulked portion of each wire for defects (Refer to BEFORE TROUBLESHOOTING) Portions to be checked Standard CN69-1 to CN70-33 Continuity CN69-1to CN69-3 No continuity 5-241 Error Code - (Although the charging is complete, the battery is not fully charged) Related portion ton series F6 CN104-1 (18, B80V) Main controller CN104-1 (41, B48V) Main controller 1·2 ton series F5 CN101-4 (41, VBBT) Transformer Thermoswitch FCH P2 Transformer CN68-2 CN70-4 (14, DGND) CN68-1 CN70-28 (139, SWTT) CN70-3 (169, TGND) CN70-5 (16, D7V) CN70-15 (146, CAN1L) CN70-16 (145, CAN1H) CN70-18 (43, VBKY) CN70-36 (N1,N1) AC Power supply CN61 N2 AC Power plug Power cable Operation panel Magnet switch (95, MSCH) CN69-1 CN70-33 (132, CHMS) CN69-2 CN70-25 (129, CHAC) CN69-3 CN70-2 (130, CGND) CN69-4 CN70-1 (128, CH7V) CN69-5 CN70-24 (121, SW3) CN69-7 CN70-22 (123, SW1) CN69-8 CN70-32 (124, LED4) CN69-9 CN70-29 (125, LED3) CN69-10 CN70-30 (126, LED2) DISPLAY 5-242 Probable cause: (1) Incompatible capacity of the battery and the transformer (2) Tap adjustment defect (3) Transformer defect (4) Decline of battery capacity due to a decrease in temperature of the electrolyte (5) Decline of battery capacity due to battery wear-out (6) Battery defect (7) Main controller defect Inspection : Check the compatibility of the capacity of the battery and the transformer (Refer to REPAIR MANUAL) NG Incompatible capacity of the battery and the transformer OK Inspection : Tap changer check (Refer to REPAIR MANUAL) NG Tap adjustment defect OK Inspection : Check of the transformer as a single unit (Refer to REPAIR MANUAL) NG Transformer defect OK Inspection: Voltage check of the battery Compare the indicated value on the display and the actual measured value (between P2 and N2) Displayed value is outside the range of ± 10% of actual measured value STD display: [ANL] IO1 2-10 Multifunction display: [ANL] I/O TEMP/ VOLT 4/5 Main controller defect Displayed value is in the range of ± 10% of actual measured value Inspection: Check of the specific gravity and temperature of battery electrolyte after charging completes (Refer to REPAIR MANUAL) NG Battery defect (Check if the battery revives by equalization charging) OK • Decline of battery capacity due to a decrease in temperature of the electrolyte • Decline of battery capacity due to battery wear-out 5-243 Error Code - (LED lamp on operation panel does not light on) Related portion ton series F6 CN104-1 (18, B80V) Main controller CN104-1 (41, B48V) Main controller 1·2 ton series F5 CN101-4 (41, VBBT) Transformer Thermoswitch FCH P2 Transformer CN68-2 CN70-4 (14, DGND) CN68-1 CN70-28 (139, SWTT) CN70-3 (169, TGND) CN70-5 (16, D7V) CN70-15 (146, CAN1L) CN70-16 (145, CAN1H) CN70-18 (43, VBKY) CN61 CN70-36 (N1,N1) N2 AC Power supply AC Power plug Power cable Operation panel Magnet switch CN69-1 CN70-33 (132, CHMS) CN69-2 CN70-25 (129, CHAC) CN69-3 CN70-2 (130, CGND) CN69-4 CN70-1 (128, CH7V) CN69-5 CN70-24 (121, SW3) CN69-7 CN70-22 (123, SW1) CN69-8 CN70-32 (124, LED4) CN69-9 CN70-29 (125, LED3) CN69-10 CN70-30 (126, LED2) DISPLAY (95, MSCH) Probable cause: (1) Operation panel defect (2) Display defect (3) Harness defect *For causes other than listed above, refer to ALTHOUGH THE START BUTTON IS PRESSED, THE MAGNET SWITCH DOES NOT CLOSE 5-244 Inspection : Applied voltage check of LED Turn off the key switch and disconnect the AC power OK plug Disconnect the CN69 connector and check the applied voltage of LED Operation panel defect NG Inspection : Harness check Disconnect the battery plug and the AC power plug Disconnect the CN69 and CN70 connectors and check the harnesses for their contuinuities OK Display defect NG Harness defect Inspection 1: Check the applied voltage of LED Disconnect the CN69 connector and perform check of the applied voltage to each LED within seconds after short-circuit the CN69-2 and CN69-3 connectors on the main harness side (If checking the applied voltage of more than one LED, it is necessary to short-circuit the the CN69-2 and CN69-3 connectors each time.) Portions to be checked Standard NORMAL LED CN69-10 to CN69-3 (Main harness side) 5V EQUAL LED CN69-9 to CN69-3 (Main harness side) 5V UP LED CN69-8 to CN69-3 (Main harnessside) 5V Inspection 2: Check the harness Check each harness for its continuity Disconnect the CN69 and CN70 connectors and visually check inside the connector and the caulked portion of each wire for defects (Refer to BEFORE TROUBLESHOOTING) NORMAL LED EQUAL LED UP LED Portions to be checked Standard CN69-10 to CN70-30 (Main harness side) Continuity CN69-10 to CN70-2 (Main harness side) No continuity CN69-10 to CN70-4 (Main harness side) No continuity CN69-10 to CN70-3 (Main harness side) No continuity CN69-9 to CN70-29 (Main harness side) Continuity CN69-9 to CN70-2 (Main harness side) No continuity CN69-9 to CN70-4 (Main harness side) No continuity CN69-9 to CN70-3 (Main harness side) No continuity CN69-8 to CN70-32 (Main harnessside) Continuity CN69-8 to CN70-2 (Main harnessside) No continuity CN69-8 to CN70-4 (Main harnessside) No continuity CN69-8 to CN70-3 (Main harnessside) No continuity 5-245 Error Code - (Although the AC power plug is not connected, LED lamps on charger panel light on/ blink) Related portion CN70-5 (16 D7V) CN70-15 (146, CAN1L) CN70-16 (145, CAN1H) CN70-18 (43, VBKY) Operation panel CN69-4 CN70-1 (128, CH7V) CN69-3 CN70-2 (130, CGND) CN69-8 CN70-32 (124, LED4) CN69-9 CN70-29 (125, LED3) CN69-10 CN70-30 (126, LED2) DISPLAY Probable cause: (1) Harness defect (2) Operation panel defect (3) Display defect Inspection : Lighting/ blinking LED check Turn off the key switch Check the “UP” LED whether it is lighting or blinking without connecting the AC power plug “UP” LED is blinking “UP” LED is lighting LED other than “UP” is lighting/ blinking Inspection :Check of display function of the charging screen Check if the screen indicates that charging is complete Not charging complete screen Inspection : Error check with the AC power plug connected Connect the AC power plug with the key switch turned off Check the error code indicated on the display Charging complete screen Normal * If the AC power plug is disconnected without any switch pressed after charging completes, the “UP” LED keeps lighting This is not a defect, so press the “STOP” button to turn off the display and use the devise as it is Check the error code Perform troubleshooting of that error Inspection 1: LED signal check OK Operation panel defect NG Inspection 2: Harness check Turn off the key switch and disconnect the battery plug and the AC power plug Disconnect the CN69 and CN70 connectors and check harnesses for their continuities OK Display defect NG Harness defect 5-246 Inspection 1: Check the LED signal Disconnect the CN69 connector without connecting the AC power plug, perform the LED signal check Portions to be checked Standard CN69-10 to CN69-3 (Main harness side) 0V CN69-9 to CN69-3 (Main harness side) 0V CN69-8 to CN69-3 (Main harness side) 0V Inspection 2: Check the harness Check each harness for its continuity Disconnect the CN69 and CN70 connectors and visually check inside the connector and the caulked portion of each wire for defects (Refer to BEFORE TROUBLESHOOTING) NORMAL LED EQUAL LED UP LED Portions to be checked Standard CN70-30 to CN70-1 (Main harness side) No continuity CN70-30 to CN70-5 (Main harness side) No continuity CN70-30 to CN70-15 (Main harness side) No continuity CN70-30 to CN70-16 (Main harness side) No continuity CN70-30 to CN70-18 (Main harness side) No continuity CN70-29 to CN70-1 (Main harness side) No continuity CN70-29 to CN70-5 (Main harness side) No continuity CN70-29 to CN70-15 (Main harness side) No continuity CN70-29 to CN70-16 (Main harness side) No continuity CN70-29 to CN70-18 (Main harness side) No continuity CN70-32 to CN70-1 (Main harnessside) No continuity CN70-32 to CN70-5 (Main harnessside) No continuity CN70-32 to CN70-15 (Main harnessside) No continuity CN70-32 to CN70-16 (Main harnessside) No continuity CN70-32 to CN70-18 (Main harnessside) No continuity 5-247 Error Code - (Although the START button is not pressed, the magnet switch closes) Related portion Transformer Thermoswitch Transformer CN68-2 CN70-4 (14, DGND) CN68-1 CN70-28 (139, SWTT) CN70-3 (169, TGND) CN61 CN70-36 (N1,N1) Operation panel Magnet switch CN69-1 CN70-33 (132, CHMS) CN69-2 CN70-25 (129, CHAC) CN69-3 CN70-2 (130, CGND) CN69-4 CN70-1 (128, CH7V) CN69-5 CN70-24 (121, SW3) CN69-7 CN70-22 (123, SW1) CN69-8 CN70-32 (124, LED4) CN69-9 CN70-29 (125, LED3) CN69-10 CN70-30 (126, LED2) DISPLAY (95, MSCH) Probable cause: (1) Operation panel defect (2) Harness defect (3) Display defect Inspection : Magnet switch signal check Turn off the key switch and disconnect the battery plug and the AC power plug Disconnect the CN70 connector NG (Continuity) Display defect OK (No continuity) Inspection : Harness check Disconnect the CN69 and CN70 connectors and check the harnesses for their contuinuities OK Operation panel defect NG Harness defect 5-248 Inspection 1: Check the magnet switch signal Disconnect the CN70 connector and perform the magnet switch signal check Portions to be checked Standard CN70-33 to CN70-2 (Display side) No continuity Inspection 2: Check the harness Check each harness for its continuity Disconnect the CN69 and CN70 connectors and visually check inside the connector and the caulked portion of each wire for defects (Refer to BEFORE TROUBLESHOOTING) Portions to be checked Standard CN69-3 to CN70-33 No continuity CN70-33 to CN70-2 No continuity CN70-33 to CN70-3 No continuity CN70-33 to CN70-4 No continuity CN70-33 to CN70-36 No continuity Published by 1st Printing: Jan 2012 Pub No CE350 Printed in Japan DA ... corresponding forklift models This manual deals with the above models as of January, 2012 Please understand that disagreement can take place between the descriptions in the manual and actual vehicles... shown in the illustration • Measurement can be done in this mode (AC+DC A mode, Display update mode: SLOW) also However, when using other modes, motor current frequency in forward motion is only... AC Driver G85703003_ 3-8 ton model Applicable model : 8FBN20 8FBN25 RH side of vehicle Material Handling AC Driver Vehicle front side Drive AC Driver Applicable model : 50-8FBN20 Material Handling