To Next PageTo Next PageWhy is the starting motor speed excessively low on my Hyundai 70DF-7?
If your Hyundai Forklifts has an excessively low starting motor speed, it could be due to insufficient battery voltage, in which case you should recharge the battery. It could also indicate that the starting motor is defective and needs replacement.
Why does the starting motor pinion keep going in and out on my Hyundai Forklifts?
If the starting motor pinion on your Hyundai Forklifts repeatedly goes in and out, it's likely due to insufficient battery voltage. Try recharging the battery to resolve this issue.
Why doesn't the charge lamp light during normal operation on my Hyundai 70DF-7 Forklifts?
If the charge lamp on your Hyundai Forklifts does not light during normal engine operation, the charge lamp itself may be defective and need replacement. Alternatively, there may be faulty wiring that requires checking and repair.
What causes an irregular fuel feeding sound in Hyundai Forklifts?
If you hear an irregular fuel feeding sound in your Hyundai Forklifts, the fuel feed pump is likely faulty and needs replacement.
Why do the lamps flicker during engine operation on my Hyundai 70DF-7?
If the lamps flicker during engine operation on your Hyundai Forklifts, the belt tension is likely improper and needs adjustment.
What causes the alternator to make abnormal sounds in Hyundai 70DF-7?
If the alternator on your Hyundai Forklifts makes abnormal sounds, it is likely defective and needs to be replaced.
Details on regular maintenance and care for lift trucks, emphasizing safety and utilization.
Importance of daily operator inspections for safe operation, including review and detailed instructions.
HYUNDAI's recommendation for planned maintenance programs by trained mechanics.
Reviews and illustrates accepted practices for safe operation of a lift truck.
Warns of conditions that could cause damage to the truck or injury to personnel.
Describes operating components, systems, controls, and features of your truck.
Details on performing daily safety inspection and refueling the lift truck.
Specific instructions on the safe, efficient operation of your lift truck.
Instructions for towing a truck in emergency and using battery jumper cables.
Describes the Planned Maintenance (PM) program.
Provides reference information and data on features, components, and maintenance.
Provides trouble symptoms, causes, and methods of remedy.
Gives instructions for testing and adjusting the truck's systems.
Details on the warning label positioned on both sides of the mast.
Information on the temperature warning label on the sub-bonnet.
Warning label on the radiator fan shroud regarding spinning blades and hot water.
Label warning of injury from movement between mast assembly parts.
Label on the main frame regarding tire pressure checks.
Warning label for safe loading procedures, on mast and main frame.
Warning label on the left top side of the frame for cabin tilting procedures.
Label on dashboard cover reminding essential procedures for safety.
Warning label on the left side of the dashboard cover.
Warning and caution plate on dashboard cover for starting procedures.
Warning plate on the right side of the parking brake lever.
Warning label on the front outside of overhead guard stay-LH.
Warning plate located on the front side of dashboard.
Decal located on the left bottom side of the bonnet cover.
Indicates forward, backward, right, and left relative to the travelling direction.
Information for ordering parts or reporting machine issues.
Defines important safety hints and useful information symbols.
Identifies general locations of major components on the truck.
Information on identification and safety plates and decals on the truck.
Details on the truck's instruments, gauges, and controls.
Explains the meaning of various indicator symbols on the dashboard.
Describes the function of operating levers and switches.
Provides procedures for emergency starting and towing the truck.
Outlines the planned maintenance and lubrication schedules.
Provides reference information and data on features and components.
Lists common trouble symptoms, probable causes, and remedies.
Procedure for inspecting the truck's condition before each shift.
Lists essential safety practices and actions to avoid.
Emphasizes the importance of always buckling up the seat belt.
States that only the operator should be on the truck.
Guidance on watching for pedestrians in work areas and at intersections.
Instructions to keep body parts within the truck confines and under the overhead guard.
Rules to prevent injury related to fork operation, including not walking under raised forks.
Warnings about keeping body parts away from pinch points in the mast assembly.
Safe travel practices, including load positioning and visibility.
Precautions for operating on inclines and uneven areas.
Information on causes and types of tip-overs, and how to avoid them.
Instructions on bracing oneself and staying in the seat during a tip-over.
Advice on avoiding conditions that cause tip-overs or loss of traction.
Safe parking procedures including grade, neutral, and brake application.
Safety practices for refueling, including fire prevention and spill management.
Instructions for safely getting on and off the machine.
General safety rules for operating the lift truck and its attachments.
Hazards associated with carrying loose or unbalanced loads.
Hazards related to handling long or wide loads, requiring extra room and care.
Hazard of the rear end swinging into objects when turning.
Hazard of striking overhead structures, causing tip-overs or load spills.
Hazard of tipping over due to sharp turns with raised loads.
Hazards associated with moving in and out of trailers, and preventing creep.
Precautions for right angle stacking to avoid sharp turns.
Hazard of rail or carriage hang-up due to slack chains.
Hazards of using damaged pallets or skids, leading to items falling.
Warning about operating near electrical lines and safe separation distances.
Prohibition of personnel standing or passing under lifted loads.
Hazards of load dropping or overturning due to unbalanced weight during side shift.
Warning against sudden or quick operation of fork positioner levers.
Explains the information on the truck data and capacity plate.
Describes operator and tip-over warning decals for safety.
Details instruments and controls specific to the 15D/18D/20DA-7E model.
Details instruments and controls for specific 20D/25D/30D/33D-7E models.
Details instruments and controls for specific 35D/40D/45D-7E models.
Details instruments and controls for specific 50D/60D/70D-7E models.
Details instruments and controls for specific 50DS/60DS/70DS-7E models.
Details instruments and controls for specific 50DF/60DF/70DF-7 models.
Explains the fuel gauge indicators and safe refueling practices.
Explains the hour meter function for tracking machine operation time.
Explains the engine cooling water temperature gauge.
Explains the transmission oil temperature gauge.
Informs operator that transmission oil is above specified temperature.
Indicates when the glow plugs are pre-heating.
Warns when engine oil pressure is below the specified level.
Indicates when the alternator is not generating electricity.
Informs the operator that fuel in the tank is below the specified level.
Indicates when the air cleaner element is dirty or needs replacement.
Shows whether the head lamp is lit.
Shows whether the working lamp is lit.
Indicates left turn signal operation.
Indicates right turn signal operation.
Shows whether the parking brake is applied or not.
Lights up when the water separator is full of water or malfunctioning.
Indicates a non-fatal engine system error.
Lights up when the operator leaves the seat, indicating safety system status.
Lights on and alarms for the first 3 seconds after starting the truck.
Lights on when the oil pressure of service brake drops below the normal range.
Turns on when the temperature of cooling water is over the normal temperature.
Fills the fuel immediately when the lamp is turned ON.
Describes the functions of the cluster buttons: buzzer stop, menu, and next.
Explains the LCD functions for start mode, standby mode, and model select.
Explains the transmission error display codes and meanings.
Details the four positions: HEAT, OFF, ON, and START.
Instructions on how to turn the clearance lamp on and off.
Instructions on how to turn the head lamp on and off.
Use for parking or loading, warns against leaving battery discharged.
Press this switch to turn on work lamps.
This switch turns ON the rotary light.
Controls autoshift function modes: manual, 1st, and 2nd gear.
Cuts off the clutch when brake operates; caution on slopes.
Controls wiper operation.
Switch for tilting the cabin to right side or returning to original location.
Used in conjunction with cabin tilting switch for cabin movement.
Lever that makes the turn signal lamp flash.
Lever for controlling forward and reverse driving direction.
Lever for gear selection, forward 3 stage and reverse 3 stage.
Sounds the horn when depressed, stops when released.
Controls interior cabin lighting.
Describes accelerator, brake, and inching pedals.
Lever for applying and releasing the parking brake.
Lever for lifting and lowering the load.
Lever for tilting the mast forward or backward.
Lever for moving the left hand for side shift.
Lever for moving the left hand for side shift.
Lever for extending or retracting the forks.
Knob for adjusting the steering wheel angle.
Procedure for opening the engine hood for maintenance access.
Details on the air conditioner and heater for operator comfort.
Controls the three steps of airflow: Front, Front & Defrost, Defrost.
Regulates the temperature of air for cooling or heating.
Regulates the inlet air, controlling fresh air intake or recirculation.
Used to operate or stop the air conditioner, with an indicator lamp.
Basic functions of the radio and USB player.
Turns the audio system on or off.
Adjusts the volume and sound settings.
Details on adjusting Bass, Middle, Treble, Balance, EQ, and Beep sound.
Adjusts the bass level of the audio system.
Adjusts the middle frequency level of the audio system.
Adjusts the treble level of the audio system.
Adjusts speaker volume balance between left and right.
Selects desired EQ settings like Classic, Pop, Rock, Jazz, or Off.
Adjusts the beep sound ON/OFF.
Changes the audio mode between RADIO, USB, AUX, and iPod.
Changes radio mode between FM1, FM2, FM3, and AM.
Connects USB devices to play music files.
Connects AUX cables to play music files.
Automatically searches for broadcasts or searches frequencies manually.
Manually searches for frequencies by pressing the SEEK step.
Displays received broadcast frequency info and status.
Listens to presets or saves frequencies automatically.
Details on connecting and operating USB devices for audio playback.
Converts audio mode to USB mode.
Controls playback by playing the next song or returning to the current.
Navigates between folders or moves up/down within folders.
Fast-forwards or rewinds the song playback.
Repeats the currently playing song or all songs within a folder.
Randomly plays songs in the current folder or folder.
Turns the scroll function for file name display ON/OFF.
Displays currently playing song information.
Enters file browser mode to search for desired files and songs.
Details on connecting and operating iPod devices for audio playback.
Converts audio mode to iPod mode.
Controls playback by playing the next song or returning to the current.
Fast-forwards or rewinds the song playback.
Repeats the currently playing song.
Randomly plays the songs.
Turns the file name display scroll ON/OFF.
Displays information in order of ARTIST, ALBUM, TITLE.
Enters CATEGORY mode to search for desired files and songs.
Details on connecting external devices via AUX cable for audio.
Controls audio system functions remotely.
Turns audio/handsfree ON/OFF and adjusts volume.
Selects handsfree or audio mode.
Answers call, redials last number, or rings off.
Transfers user voice to receiver during a handsfree call.
Stops radio at next frequency or turns to higher/lower frequency.
Mutes or cancels mute (silence) during broadcasting.
Procedure for inspecting truck condition and components before operation.
Checks operation of truck systems like brakes, controls, and gauges.
Steps to conclude the inspection and determine if the truck is safe to operate.
Ensures operator reads manual, is trained, authorized, and truck is safe.
Thorough walk-around check required before starting the engine.
Inspects truck for water, oil, or hydraulic leakage and obvious damage.
Details on checking tire air pressure and rim condition.
Procedure to check and add brake fluid if necessary.
Ensures coolant level is within normal range and checks for leaks.
Procedure to check and add engine oil if level is low.
Inspects fan belt tension and condition, with adjustment instructions.
Inspection of battery for damage, terminals, and cell filling.
Procedure to check hydraulic oil level and condition.
Checks gauges and warning lamps for normal operation.
Verifies parking brake function and holding capability.
Checks horn button and lamp switch for normal operation.
Checks for catching or abnormal heaviness when depressing pedals.
Adjusts seat for operator comfort and work efficiency.
Emphasizes wearing seat belt for injury prevention.
Ensures safe conditions before starting the lift truck.
Provides tips for safe starting and operation, including engine warm-up.
Step-by-step procedure for starting the engine, including pre-heating.
Checks for abnormal noises or vibrations after starting the engine.
Checks exhaust gas color for combustion status.
Ensures fuel level is adequate and advises on refueling practices.
Checks warning lamps for abnormalities.
Checks for play in the steering wheel.
Checks for smooth steering action and absence of abnormal heaviness.
Adjusts rearview mirror for best rearward visibility.
Checks lift chain tension for proper adjustment.
Best practices for positioning forks and mast for safe travel.
Instructions for selecting forward, neutral, or reverse.
Procedure for using the accelerator pedal to control speed.
Procedure for using the brake pedal to stop the truck.
Use for fine control of travel speed with lift/load operations.
General rules for safe operation, including awareness and self-protection.
Precautions for operating on inclines and uneven areas.
Emphasizes careful driving, common sense, and hazard awareness.
Guidelines for handling loads within rated capacity and ensuring stability.
Procedure for adjusting fork spacing and checking retaining bolts.
Rules for proper load placement on forks to ensure stability.
Safe practices for traveling with loads, including speed and clearance.
Steps for safely approaching, lifting, and moving loads.
Procedure for safely depositing loads on the floor or stack.
Step-by-step guide for safely stacking loads.
Procedure for safely removing a load from a stack.
Safety rules for parking the truck, including location and grade.
Steps to take before leaving the operator's position, like stopping and neutralizing.
Additional steps for unattended trucks, including blocking wheels.
Procedures for safely towing a disabled truck to a repair area.
Safe procedures for using jumper cables to start a discharged battery.
Overview of planned maintenance and its importance for safety and service life.
Recommended procedures and practices for safe maintenance operations.
Lists safety parts that require periodic replacement based on lifetime.
Steps and precautions to take before starting maintenance.
General precautions for performing maintenance tasks.
Guidelines for replacing parts, using genuine parts, and recommended fluids.
Careful instructions for installing hydraulic hoses and pipes to avoid damage.
Diagrams showing locations of major components for maintenance reference.
List of checks and services required every 10 hours.
List of checks and services required every 50 hours.
Initial checks and services required at 50 hours.
Initial checks and services required at 100 hours.
List of checks and services required every 250 hours.
List of checks and services required every 500 hours.
List of checks and services required every 1000 hours.
List of checks and services required every 2000 hours.
List of checks and services required every 5000 hours.
List of checks and services required as needed.
Maintenance schedule for 15D/18D/20DA-7E models.
Maintenance schedule for 20D/25D/30D/33D-7E and related models.
Maintenance schedule for 35D/40D/45D-7E and related models.
Maintenance schedule for 50D/60D/70D-7E and related models.
Maintenance schedule for 50DF/60DF/70DF-7 models.
Perform a visual inspection of the truck and its components for damage.
Check overhead guard and safety devices for proper placement and security.
Inspect mast assembly, chains, cylinders, and rollers for wear or damage.
Inspect load forks for cracks, bends, wear, and proper alignment.
Check lever and hanger bar for accurate fork insertion.
Check wheel and tire condition, lug nuts, and tire pressure.
Procedure for cleaning or replacing the recircular plenum filter.
Tips for using the air conditioner, including ventilation and temperature.
Service recommendations for refrigerant and maintenance during operation season.
Operate AC periodically during off-season to prevent oil film loss.
Procedure for safely removing and installing the battery.
Instructions for cleaning or replacing the air cleaner element.
Procedures for engine oil and filter replacement, and fuel filter replacement.
Procedure for checking and changing transmission oil.
Procedure for checking and changing differential oil.
Procedure for changing hydraulic oil and cleaning strainer.
Instructions for cleaning the strainer with compressed air.
Procedures for cleaning radiator fins and flushing the cooling system.
Procedure for safely replacing tires, including jacking and lug nut tightening.
Fuse layout and capacity for 15D/18D/20DA-7E models.
Fuse layout and capacity for 2.0-3.3 ton and 35DF-7 models.
Fuse layout and capacity for 35D/40D/45D-7E and 50D-7AE models.
Fuse layout and capacity for 35DS/40DS/45DS/50DA-7E models.
Fuse layout and capacity for 50D/60D/70D-7E and 80D-7E models.
Fuse layout and capacity for 50DS/60DS/70DS-7E models.
Fuse layout and capacity for 50DF/60DF/70DF-7 models.
Tests the horn function and reports any failures.
Checks hour meter operation and records reading.
Checks that all lights are functioning and indicate normal operation.
Tests service brakes and inching pedal function.
Checks parking brake function and holding capability on a grade.
Tests mast, carriage, and lift chain movements for smoothness.
Tests control lever function for attachments.
Inspects steering system for looseness, damage, and smooth operation.
Tests direction control, braking, and inching pedal interaction.
Inspects engine coolant hoses and fan belt for leaks or damage.
Checks air cleaner for damage, contamination, and proper connection.
Inspects battery for damage, terminals, and electrolyte level.
Checks coolant level and radiator condition.
Inspects and lubricates chassis components like steering, cylinders, and bearings.
Lubricates tilt cylinder rod end bushings and mast trunnion bushings.
Lubricates the entire length of mast rail lift and carriage chains.
Maintains truck cleanliness to prevent fires and ease inspection.
Ensures correct torque on critical fasteners for safety and component integrity.
Ensures safe and efficient transmission of lifting force via lift chains.
Inspects lift chains for wear, rust, damage, and proper tension.
Lubricates lift chains for safer operation and longer life.
Defines criteria for chain wear and replacement.
Lubrication chart for 15D/18D/20DA-7E and related models.
Lubrication chart for 35D/40D/45D-7E and related models.
Lubrication chart for 50D/60D/70D-7E and related models.
Diagram showing greasing points for 15D/18D/20DA-7E.
Diagram showing greasing points for 20D/25D/30D/33D-7E.
Diagram showing greasing points for 20DF/25DF/30DF/33DF-7.
Diagram showing greasing points for 35D/40D/45D-7E models.
Diagram showing greasing points for 50D/60D/70D-7E models.
Diagram showing greasing points for 50DS/60DS/70DS-7E models.
Care for the cooling system in hot weather, focusing on cleaning and coolant.
Checking battery electrolyte level in hot weather.
Steps for preparing the machine for low temperatures, including fluids and antifreeze.
Maintaining battery charge and electrolyte level in cold weather.
Daily care procedures to prevent freezing, including draining water and filling fuel.
Safeguards for storing the forklift for an extended period.
Procedures for operating the machine periodically during storage.
Treatment required before operating the machine after storage.
Precautions for loading/unloading the machine on transporters using ramps.
Lubricant recommendations for new machines.
Lubricant chart for 15D/18D/20DA-7E and related models.
Lubricant chart for 35D/40D/45D-7E and related models.
Lubricant chart for 50D/60D/70D-7E and related models.
Fuel and lubricant specifications for 15D/18D/20DA-7E and related models.
Fuel and lubricant specifications for 35D/40D/45D-7E and related models.
Fuel and lubricant specifications for 50D/60D/70D-7E and related models.
Fuel and lubricant specifications for 50DF/60DF/70DF-7 models.
Summary table of key specifications for lift trucks.
Specification table for 15D/18D/20DA-7E models.
Specification table for 20D/25D/30D/33D-7E models.
Specification table for 20DF/25DF/30DF/33DF-7 and 35DF-7 models.
Specification table for 35D/40D/45D-7E, 50D-7AE models with HMC engine.
Specification table for 35DS/40DS/45DS/50DA-7E models with MHI engine.
Specification table for 50D/60D/70D-7E, 80D-7E models with HMC engine.
Specification table for 50DS/60DS/70DS-7E models.
Specification table for 50DF/60DF/70DF-7 models.
Engine specifications for 15D/18D/20DA-7E models.
Specifications for the main hydraulic pump.
Specifications for the main control valve.
Specifications for torque converter, transmission, axle, wheels, brakes, steering.
Engine specifications for 20D/25D/30D/33D-7E models.
Engine specifications for 20DF/25DF/30DF/33DF-7 models.
Engine specifications for 35D/40D/45D-7E and 50D-7AE models.
Engine specifications for 35DS/40DS/45DS/50DA-7E models.
Engine specifications for 50D/60D/70D-7E models.
Engine specifications for 80D-7E models.
Engine specifications for 50DS/60DS/70DS-7E models.
Engine specifications for 50DF/60DF/70DF-7 models.
Torque specifications for 15D/18D/20DA-7E models.
Torque specifications for 20D/25D/30D/33D-7E models.
Torque specifications for 20DF/25DF/30DF/33DF-7 and 35DF-7.
Torque specifications for 35D/40D/45D-7E and 50D-7AE models.
Torque specifications for 35DS/40DS/45DS/50DA-7E models.
Torque specifications for 50D/60D/70D-7E and 80D-7E models.
Torque specifications for 50DS/60DS/70DS-7E and 50DF/60DF/70DF-7 models.
Troubleshooting common engine system problems and their remedies.
Troubleshooting common electrical system issues and their remedies.
Troubleshooting issues related to the torque flow system.
Troubleshooting high oil temperature in the torque converter and transmission.
Troubleshooting abnormal noises in the torque converter and transmission.
Troubleshooting low output power in the torque converter and transmission.
Troubleshooting high or low oil pressure issues.
Troubleshooting when power is not transmitted to the wheels.
Troubleshooting oil leaks from the transmission and torque converter.
Troubleshooting causes for steering wheel dragging.
Troubleshooting issues with the steering wheel not returning smoothly.
Troubleshooting causes for unsteady steering wheel movement.
Troubleshooting abnormal sounds when turning the steering wheel.
Troubleshooting abnormal sounds in the steering system piping.
Troubleshooting abnormal sounds from the steering system valve.
Troubleshooting insufficient or variable oil flow in the steering system.
Troubleshooting insufficient or variable discharge pressure.
Troubleshooting causes for insufficient braking force.
Troubleshooting uneven brake action, causing pulling to one side.
Troubleshooting causes for brake trailing or failure to return.
Troubleshooting causes for brake chirps.
Troubleshooting causes for brake squeaks.
Troubleshooting causes for brake rapping.
Troubleshooting causes for a large brake pedal stroke.
Troubleshooting causes for pedal dragging.
Troubleshooting fast fork lowering speed.
Troubleshooting spontaneous mast tilt backward or forward.
Troubleshooting slow fork lifting or mast tilting.
Troubleshooting abnormal sounds in the hydraulic system.
Troubleshooting a locked control valve lever.
Troubleshooting high hydraulic oil temperature.
Tests for ease of starting, noise, and idling.
Checks engine starting smoothness and noise levels.
Checks engine for steady rotation, noise, and idling speed.
Checks accelerator pedal operation and engine response.
Checks and cleans the air cleaner element.
Checks battery condition and electrolyte level.
Checks coolant level in the radiator sub-tank.
Checks radiator cap tension and valve function.
Periodic replacement of the fuel filter element.
Checks engine oil level, condition, and quantity.
Periodic replacement of the engine oil filter element.
Checks fan belt for damage, tension, and slippage.
Checks fan for looseness and tightens mounting bolts.
Ensures neutral starting and describes shifting lever operation.
Instructions for moving the lever forward for forward drive, backward for reverse.
Checks for oil leakage from torque converter, transmission, or control valve.
Adjustments for accelerator, brake, and inching pedals.
Adjusts stopper bolt for desired pedal operation range.
Adjusts pedal operation range and height.
Adjusts stopper bolt for pedal height and push rod for idle stroke.
Adjusts stopper bolt, rod, and bolt for proper inching pedal function.
Checks oil levels in brake reservoir, differential case, and transmission.
Checks brake fluid level in the reservoir.
Procedure for checking and filling differential case oil.
Checks oil level in the floor plate and transmission case.
Checks tire pressure, cracks, damage, tread wear, and pieces stuck in tire.
Checks for loose hub nuts and tightens them to specified torque.
Checks rim side ring for deformation or cracks.
Checks clearance and mounting bolt torque for the steering axle.
Checks drive axle mounting bolts and welds for deformation or cracks.
Tests steering wheel movement range and play.
Checks knuckle for bends and tire wear.
Measures camber and turning radius, adjusts stopper bolt if needed.
Adjusts lever stroke and latching depth for parking brake.
General
