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Special Precautions

DISCHARGING THE INTERNAL

CAPACITORS

When working with the electrical systems of the truck, it is
necessary  to  discharge  the  internal  capacitors  of  the  con-
trollers associated with each circuit affected.

  WARNING 

Capacitors inside the controllers can hold an elec-
trical  charge  after  the  battery  is  disconnected.
Discharge the internal capacitors before servicing
the  electrical  system  to  prevent  injury  or  elec-
tronic damage.

1. 

Move the lift truck to a safe, level area and completely
lower the mast. Turn the key switch to the 

OFF

 posi-

tion and attach a 

DO NOT OPERATE

 tag to the con-

trol handle. Block the drive wheel to prevent unexpec-
ted movement.

2. 

Disconnect the battery power cable connector from the
truck connector located on the right side of the frame.
Pull the battery cable connector handle to separate the
battery connector from the truck connector.

3. 

Remove the operator compartment cover.

4. 

Discharge  the  internal  capacitor  in  the  controllers  by
connecting a 200-ohm, 2-watt resistor across the con-
troller B+ and B− terminals of the motor controller for
10  seconds.  Remove  the  resistor  after  discharging  the
capacitors. See Figure 4.

ELECTROMAGNETIC SHIELD

  WARNING 

Never operate Power Assist Steering models with
the Electromagnetic Shield removed.

A metallic shield is installed between the MDU and brake
assembly and the steering assembly on power assist steer-
ing units. This shield deflects the electromagnetic field gen-

erated by the MDU and brake assembly which can interfere
with  the  operation  of  the  torque  sensor.  Make  certain  that
the  Electromagnetic  Shield  is  reinstalled  before  operating
the lift truck after servicing to prevent erratic operation of
the power assist steering function.

1. CONTROLLER

2. POSITIVE CONNECTION (B+)

3. INSULATED JUMPER WIRES

4. 200-OHM, 2-WATT RESISTOR

5. NEGATIVE CONNECTIONS (B−)

Figure 4. Discharging the Controller

2200 SRM 1640

Special Precautions

3

Summary of Contents for B262

Page 1: ...Hyster B262 B60ZHD B80ZHD Forklift...

Page 2: ...ELECTRICAL SYSTEM B60ZAC C230 B60ZHD B262 B80ZHD B257 PART NO 4096092 2200 SRM 1640...

Page 3: ...iodic Maintenance section Keep the unit clean and the working area clean and orderly Use the correct tools for the job Keep the tools clean and in good condition Always use HYSTER APPROVED parts when...

Page 4: ...ht Limit 12 Control Handle Standard 12 Disassemble 12 Assemble 13 Control Handle HD Option 15 Disassemble 15 Remove Top Cover 15 Remove Function Switches 15 Remove Throttle Sensor Assembly 15 Remove H...

Page 5: ...ore information Please click here Then get the complete manual NOTE If there is no response to click on the link above please download the PDF document first and then click on it Have any questions pl...

Page 6: ...TABLE OF CONTENTS Continued Troubleshooting 24 This section is for the following models B60ZAC C230 B60ZHD B262 B80ZHD B257 Table of Contents Electrical System ii...

Page 7: ...the control handle and disconnect the battery This section describes the electrical systems used on the motorized hand lift trucks Procedures are outlined for the maintenance adjustment and repair th...

Page 8: ...around the edge of the cover until it is freed from the truck 1 FLOOR MAT 2 DRIVE UNIT COMPARTMENT COVER 3 FRAME 4 CASTER ADJUSTMENT ACCESS Figure 2 Floor Mat 1 DRIVE UNIT COMPARTMENT COVER 2 RETAININ...

Page 9: ...rom the truck connector 3 Remove the operator compartment cover 4 Discharge the internal capacitor in the controllers by connecting a 200 ohm 2 watt resistor across the con troller B and B terminals o...

Page 10: ...olid one piece units Put a block in front and back of the tire or wheels touching the ground to prevent unexpected movement of the lift truck WARNING DO NOT raise the lift truck by attaching an over h...

Page 11: ...between each terminal of the con nector that fastens to the battery and a clean connection on the frame Normally there is small voltage less than 30 percent of the battery voltage between the bat ter...

Page 12: ...ttery voltage at control fuse Connect bat tery or check wiring between battery and fuse 1 1 Check for battery voltage at control fuse terminal of key switch 1 1 1 Battery voltage at key switch Check f...

Page 13: ...jumper wire is re moved and cycle the key switch to the OFF position and then back to the ON position 8 Check the lift truck for proper operation Reinstall the drive unit compartment cover Repairs WAR...

Page 14: ...itors in this section 4 Tag and disconnect wires from the controller See Fig ure 6 5 Remove nuts securing shield box to controller if equip ped 6 Remove mounting screws and remove controller Install 1...

Page 15: ...battery is disconnec ted To prevent electrical shock and personal in jury discharge the capacitor before inspecting or repairing any component in the drive unit com partment Wear safety glasses Make c...

Page 16: ...n and disconnect the battery again to finish repairs 8 Install the drive unit compartment covers as removed See GeneralGeneral in this section Return the lift truck to service Brake Switch Operation T...

Page 17: ...ng on model To replace the brake switch es WARNING The capacitor in the transistor controller can hold an electrical charge after the battery is disconnec ted To prevent electrical shock and personal...

Page 18: ...the controller When the controller senses a high current draw from the hydraulic pump it will shut down the pump There are two separate incidents that will cause this current draw The first is when t...

Page 19: ...to the handle 8 8 Using the remaining butterfly knob slide the shaft out of the handle Be careful not to rotate the shaft within the control handle card 9 Refer to the wiring diagram or draw a sketch...

Page 20: ...BUTTERFLY KNOB 7 WASHER 8 SCREW 9 SPRING 10 RH BUTTERFLY KNOB 11 SWITCH COVER 12 SPRING 13 SWITCH 14 HORN SWITCH COVER 15 SWITCH ASSEMBLY 16 LABEL 17 LABEL 18 LABEL 19 ACTUATOR 20 ACTUATOR 21 SPRING 2...

Page 21: ...applying pressure to the tabs on one side of the switch mount and slightly lifting the switch mount away from the retainer Once clear remove the switch mount from the top cover 4 Remove the pin retain...

Page 22: ...rom the handle casting and maneuver the link to disconnect it from the throttle sleeve 5 Slide the grips from the shaft Recover the locking rods from inside the grips if equipped 6 Move the butterfly...

Page 23: ...ly 2 Connect the wiring removed during disassembly 3 Install the actuator and two springs into the cover 4 Place the switch base on the cover and install the as sembly to the handle with the two screw...

Page 24: ...throttle sensor to the base using the cap screws washers and nuts removed during disassem bly Ensure the tang on the sensor aligns correctly with the shaft on the bottom assembly 7 Torque the capscre...

Page 25: ...s analog signals from the con trol handle to digital signals for the controller to read If the controller is reporting an input error fault code then the control module may be malfunctioning Check the...

Page 26: ...ents See the section Periodic Maintenance 8000SRM1644 3 Discharge the capacitors See Discharging the Internal Capacitors in this section 4 Disconnect all connectors from the control module 5 Remove ca...

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