Advertisement
Quick Links
SERVICE MANUAL
BBX50 SERIES ELECTRIC FORKLIFT TRUCKS - S/N 090001A~
FB20/25/30/32SH-6
FB20/25/30/32SHE-6
FB20/25SHG-6
FB20/25SHGE-6
BBX50
Read and observe all warnings on this unit
before operating it.
DO NOT operate this equipment unless all
factory installed guards and shields are
properly secured in place.
ISSUED DECEMBER 2005
WARNING
SM150
Komatsu Forflift USA, Inc.
Advertisement
Related Manuals for Komatsu BBX50 Series
Summary of Contents for Komatsu BBX50 Series
- Page 1 SM150 SERVICE MANUAL BBX50 SERIES ELECTRIC FORKLIFT TRUCKS - S/N 090001A~ FB20/25/30/32SH-6 FB20/25/30/32SHE-6 FB20/25SHG-6 FB20/25SHGE-6 BBX50 WARNING Read and observe all warnings on this unit before operating it. DO NOT operate this equipment unless all factory installed guards and shields are properly secured in place.
- Page 2 CONTENTS Page No. TABLE OF CONTENTS ............. . 1 INTRODUCTION .
- Page 3 Speed Sensor ............20-32 Maintenance and Inspection of Motors.
- Page 4 Traction Motor ............. . . 40-25 Pump Motor.
- Page 5 Self-Diagnosis Function ........... . . 70-4 Control Block Diagram .
- Page 6 FORKLIFT TRUCKS COVERED IN THIS PUBLICATION BBX50 S/N 090001A~ KOMATSU MODEL DESCRIPTION DESIGNATION Electric Lift Trucks FB20SH-6 4,000 lb. Capacity, Cushion Tire, High Option FB20SHE-6 4,000 lb. Capacity, Cushion Tire, High Option, EE Rated FB20SHG-6 4,000 lb. Capacity, Cushion Tire, High Option, Extended Frame FB20SHGE-6 4,000 lb.
- Page 7 Read this Manual and the Safety Labels again from time to time. If the Operation and Maintenance Manual or Safety Labels have been lost or become dirty and cannot be read, obtain replacements from your Komatsu Forklift dealer and attach the Safety Labels in the specified positions. OPERATION QUALIFICATIONS •...
- Page 8 Any modification made without authorization from Komatsu Forklift can create hazards. • Before making any modification whatsoever, consult your Komatsu Forklift dealer. Komatsu Forklift will not be responsible for any damage, injury or death caused by any unauthorized modification. •...
- Page 9 SAFETY MANAGEMENT CHECK WHEN TRAVELING IN REVERSE • When reversing, depending on the situation, an optional alarm, reversing lamp or rotary lamp should be used. In all cases, be sure to face the rear and check around before traveling in reverse. TRAVELING REGULATIONS ON PUBLIC ROADS •...
- Page 10 SAFETY MANAGEMENT CLEAN OPERATOR'S COMPARTMENT • Keep the operator's compartment clean and tidy. Be sure to clean up all oil or mud. If the operator's hand or foot slips, this may lead to a serious accident. • Do not leave tools or spare parts lying around in the operator's compartment. They may damage or obstruct the control levers or pedals.
- Page 11 SAFE TRAVEL SAFE TRAVEL WEARING SEAT BELT • Always fit your seat belt correctly when operating. If your seat belt is fitted incorrectly, there is danger of serious personal injury if the lift truck should tip over. • Always check the seat belt mounts and check for any damage to the seat belt.
- Page 12 SAFE TRAVEL PRECAUTIONS WHEN STARTING UNIT • Depress the brake pedal firmly, then start the unit. • Before starting the unit, always check that the parking brake is applied and that the directional lever is in neutral. • Adjust the operator's seat and the steering wheel before starting the unit.
- Page 13 SAFE TRAVEL TRAVEL ON SLOPES • Do not turn, or travel across or at an angle on slopes. There is danger that the lift truck will tip. • Before starting to drive up a slope, stop the lift truck and adjust the clearance between the ground surface and the bottom of the forks so that the bottom of the forks or pallet do not contact the ground surface or the tip of the fork does not stick into the ground when traveling.
- Page 14 SAFE TRAVEL LOADING HIGHWAY TRUCKS OR RAILROAD CARS • Do not travel on the edge of docks. There is danger that the lift truck may fall, which may result in serious injury or death. • Before starting operations, check the load limit for the gangplanks (dock boards), and do not use them if they do not have ample strength to take the weight of the lift truck when loaded.
- Page 15 SAFE TRAVEL WHEN FRONT VIEW IS POOR • If the view to the front is obstructed by the load, turn to the rear and drive the forklift truck in reverse. • When driving in reverse with a high load, use a signal person to ensure the safety of the load and the safety in the surrounding area.
- Page 16 SAFE TRAVEL ALWAYS SIT IN OPERATOR'S SEAT Always observe the following: • Never operate the lift truck from outside the operator's compartment. • Always keep your body under the overhead guard. • Do not extend your arms and legs outside the operator's compartment. USE GOOD POSTURE WHILE OPERATING LIFT TRUCK Travel Interlock (power shutdown)/Load Handling interlock •...
- Page 17 SAFE TRAVEL BRAKING WHEN TRAVELING • Do not turn the key switch OFF during traveling. If the key switch is turned OFF, the power steering (for lift trucks with power steering) and power brake (for lift trucks with power brakes) will not work. •...
- Page 18 SAFE TRAVEL HEIGHT OR WIDTH LIMITS When going in or out of places with height or width limits: • Ensure that there is ample height and width for the lift truck to pass. • Do not extend your hands or legs outside the operator’s compartment or the area covered by the overhead guard (safe area).
- Page 19 LOADING OPERATIONS LOADING OPERATIONS NO OVERLOADING • Do not load the lift truck over the capacity set forth in the load capacity chart. If the rear wheels come off the ground because of overloading, the lift truck cannot travel or turn. There is also danger that it may tip.
- Page 20 LOADING OPERATIONS BE CAREFUL NOT TO GET CAUGHT OR FALL • Never put your hands or feet into the mast structure. There is danger that you will get caught in moving parts and be seriously injured. • Do not use the mast, load backrest or dashboard as a ladder or step. If you slip, there is danger that you will fall.
- Page 21 LOADING OPERATIONS DO NOT LOAD ABOVE HEIGHT OF LOAD BACKREST • Keep the height of the load within the height of the load backrest. • Do not carry any load that is higher than the load backrest. If the load is higher than the load backrest, there is danger that it will fall back on top of the operator.
- Page 22 LOADING OPERATIONS USE ONLY FOR INTENDED PURPOSES • Do not use the lift truck for anything other than the intended use (loading operations using the forks). • Do not use the forks to open or close the doors of railroad cars or warehouses.
- Page 23 LOADING OPERATIONS FIT FORKS SECURELY IN POSITION • Adjust the position (spread) of the forks to match the size of the load. • When adjusting the position (width) of the forks, be careful not to get your hands caught. • After adjusting, check that the forks are held securely in position by the fork stopper.
- Page 24 LOADING OPERATIONS HANDLING LONG OR WIDE LOADS • Be extremely careful when carrying long or wide loads. Raise the load slowly and be careful not to touch anything in the surrounding area. • Keep the load as low as possible and be sure to maintain the balance. •...
- Page 25 STOPPING AND PARKING STOPPING AND PARKING PRECAUTIONS WHEN STOPPING OR PARKING Observe the following procedure when stopping or parking the lift truck: 1. Stop the lift truck on level ground. 2. Apply the parking brake securely to make sure that the lift truck can- not move.
- Page 26 INSPECTION AND MAINTENANCE INSPECTION AND MAINTENANCE USE QUALIFIED PERSONNEL FOR INSPECTION AND MAINTENANCE • Only persons authorized by the owner or operator of the equipment and having proper certification (local or national) may carry out inspection, maintenance and repairs of the lift truck. •...
- Page 27 INSPECTION AND MAINTENANCE PRECAUTIONS WHEN CARRYING OUT INSPECTION AND MAINTENANCE • Wipe off any oil or grease. Immediately wipe up any oil that has leaked. If the lift truck is dirty, it becomes difficult or impossible to find cracks or other problems. Always clean the lift truck before starting inspection.
- Page 28 INSPECTION AND MAINTENANCE BE CAREFUL NOT TO GET CAUGHT OR FALL • NEVER put your hands or feet into the mast structure. There is danger that you will get caught in moving parts and be seriously injured. • Do not use the mast, load backrest or dashboard as a ladder. If you slip, there is danger that you will fall.
- Page 29 NEVER raise the truck by the overhead guard. If the truck has to be lifted frequently, it is necessary to install special lifting equipment, so pleas contact your Komatsu Forklift dealer. • Fit wire ropes to the specified lifting points.
- Page 30 During charging, always open the battery bonnet and lock it. • If the fuse for the battery charger is blown, always replace it with a genuine Komatsu Forklift fuse. • Explosive gas is produced in the battery during charging. Keep flame away from battery.
- Page 31 Please contact your Komatsu Forklift dealer for additional information on purchasing and installing such equipment. • Contact your Komatsu Forklift dealer before carrying out lifting operations with a lift truck equipped with an optional steel cab. •...
- Page 32 STRUCTURE AND STABILITY OF THE LIFT TRUCK STRUCTURE AND STABILITY OF THE LIFT TRUCK To operate the lift truck safely, and to prevent the lift truck from tipping, it is important to understand the structure and stability of the lift truck. STRUCTURE OF LIFT TRUCK A forklift truck consists basically of the lifting mechanism (the forks and mast) at the front and the lift truck itself (with tires) at the rear.
- Page 33 STRUCTURE AND STABILITY OF THE LIFT TRUCK CENTER OF GRAVITY AND STABILITY The stability of the lift truck is determined by the position of the combined center of gravity resulting from the combination of the centers of gravity of the lift truck and the load. When the lift truck is carrying no load, the center of gravity remains as it is, but when the lift truck is loaded, the combined center of gravity becomes the combination of the centers of gravity of both...
- Page 34 STRUCTURE AND STABILITY OF THE LIFT TRUCK ALLOWABLE LOAD The allowable load is stamped on the nameplate to show the relationship regarding the position of the load center, the height of the fork and the maximum load. Before loading the forks, check that the load and load center are within the permitted range on the stamped allowable load.
- Page 35 STRUCTURE AND STABILITY OF THE LIFT TRUCK SPEED AND ACCELERATION If a stationary object is not subjected to external force, it will remain stationary. In the same way, if a moving object is not subjected to external force, it will continue to move at the same speed. This is called inertia. Because of inertia, a force is applied towards the rear when the lift truck starts to move, and is applied towards the front when the lift truck stops.