Publication FBM10/18.2-AE3 walks you through running, charging, and maintaining all four electric lift trucks in Komatsu's FBM-2 series, so these 55 pages serve as the Komatsu FB15M-2 operator manual PDF and cover its three stablemates besides. Battery care gets the most ink: activation-charging dry-charged storage batteries, adjusting specific gravity, setting the voltage tap, and the daily checks that catch a leaking cell before it strands a shift. Controls and instruments, the maintenance table, tire options, and dedicated sections for refrigerator and fishery application trucks round out the book, along with a lubrication chart and storage procedures. Refilling the hydraulic tank takes 18 liters, and the relief valve should hold 170 kg/cm2. Guessing at charging voltage buys you a dead battery. This bookmarked, text-searchable PDF is yours once, for as long as the truck is.
What's Inside This Komatsu FB10M-2, FB13M-2, FB15M-2, FB18M-2 Operator Manual
| System | Pages | Key Topics |
|---|---|---|
| Breaking in Your New Machine | 5-7 | Transfer Case, Hydraulic Tank, Line Filter, Strainer, Hub Nuts, Overhead Guard Mounting Bolts |
| Before Operating Forklift | 8 | Caution Plates, Engine Serial Number, Machine Serial Number |
| General Locations | 9 | |
| Instruments and Controls | 10-16 | Starting Switch, Hour Meter |
| Operating Your Machine | 17-20 | Starting Machine, Stopping and Parking |
| Tires for Electric Lift Trucks | 21 | Pneumatic Rib-Lug Tires, Elastic Cushion Rib-Lug Tires, Cushion Tires |
| Refrigerator Application Trucks | 22-23 | Controller Box, Stationary Charger, Lubricant |
| Fishery Application Trucks | 24 | Controller Chamber, Battery Terminals, Rubber Boots |
| Procedures for Activation-Charging of Dry-Charged Storage Batteries | 25-27 | Initial Charge, Adjusting Specific Gravity |
| Charging Battery | 28-31 | Adjusting Voltage Tap, Method of Charging Battery, Precautions on Handling Battery |
| Check Before Starting | 32-38 | Check for Water or Oil Leakage, Check Battery |
| Periodic Maintenance | 39 | |
| Periodic Replacement of Consumable Parts | 40 | Brake Hose, Brake Reservoir Tank Tube, Power Steering Hose |
| Maintenance Table | 41-42 | Machine Exterior, Tires, Battery, Hydraulic Tank, Brake Pedal, Steering Wheel |
| Replacement and Check | 43-48 | Hydraulic Tank, Transfer Case, Tire Replacement |
| Service Data | 49-50 | Tire Air Pressure, Hub Nut Tightening Torque, Rim Tightening Torque, Steering Wheel Play, Brake Pedal Play, Brush Height |
| Lubrication Chart | 51 | |
| Storage | 52 | Machine Washing, Lubrication, Hydraulic Piston Rods |
| Lubricants | 53-55 | Gasoline Engine Oil, Diesel Engine Oil, Gear Oil, Grease, Brake Fluid |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Master cylinder and wheel cylinder caps, dust seals replacement period | Every 1 year | p. 40 |
| Hydraulic Oil Capacity | 18L | p. 43 |
| Transfer Case Oil Capacity | 2.4L | p. 53 |
| Operating Force of Parking Brake | 4-6 kg | p. 49 |
| Relief Valve Pressure | 170 kg/cm2 | p. 49 |
| Steering Wheel Play | 10-20 mm | p. 49 |
| Brake Pedal Play | 10-15 mm | p. 49 |
| Elongation of Lift Chain (17 links) | 275.5 mm | p. 49 |
| Drive Motor Brush Height | 16 mm | p. 49 |
| Pump Motor Brush Height | 16 mm | p. 49 |
| Power Steering Motor Brush Height | 10 mm | p. 49 |
| Brake Fluid Capacity | 0.15L | p. 53 |
Komatsu FB10M-2, FB13M-2, FB15M-2, FB18M-2 Common Problems This Manual Covers
Komatsu FB15M-2 brake pedal feels soft and spongy, pedal slowly sinks toward the floor
Check brake fluid level in the reservoir; the system holds only 0.15L, so a small leak matters. Verify brake pedal play measures 10-15 mm against the service data on page 49. Replace the master cylinder and wheel cylinder caps and dust seals every year, as listed in the consumable parts table on page 40.
Manual Section: Periodic Replacement of Consumable Parts p. 40Steering wheel feels loose, too much free play before the front wheels respond
Measure steering wheel play with the truck stopped; anything beyond 10-20 mm needs adjustment, per the service data on page 49. Grease the steering chain at the points shown on the lubrication chart on page 51. Check power steering motor brush height during periodic maintenance; the wear limit is 10 mm.
Manual Section: Service Data p. 49Truck won't move after overnight charging, drive power cuts out intermittently during travel
Check battery electrolyte level and specific gravity first; a weak charge mimics drive failure. Follow the charging method on page 28 and verify the voltage tap matches your battery. Inspect terminals for corrosion during the daily checks on page 32. Check drive motor brush height at periodic maintenance; the limit is 16 mm.
Manual Section: Charging Battery p. 28Mast rattles and clunks during lifting, lift chains look slack or uneven
Check lift chain tension during the daily inspection on page 32 and adjust so both chains carry the load evenly. Measure chain elongation: if 17 links stretch beyond 275.5 mm, the chain is worn past its limit, per the service data on page 49. Grease the chains and mast support per the lubrication chart on page 51.
Manual Section: Check Before Starting p. 32Forks lift slowly or hesitate under load, hydraulic system whines at full lift
Check hydraulic oil level on the tank during the daily inspection on page 32. Drain and refill at the scheduled change interval; the tank holds 18L, as shown on page 43. Clean the suction strainer and replace the line filter while the tank is open, then bleed air from the hydraulic system before returning to work.
Manual Section: Replacement and Check p. 43Frequently Asked Questions
How often should Komatsu FB10M-2, FB13M-2, FB15M-2, FB18M-2 master and wheel cylinder caps and dust seals be replaced?
The master cylinder and wheel cylinder caps and dust seals should be replaced every 1 year as part of the periodic replacement of consumable parts. p. 40
What is the hydraulic oil capacity for the FB10M-2 through FB18M-2 models?
The hydraulic oil capacity for the tank is 18 liters (5 gallons) for the standard configuration, or 15 liters (4 gallons) for the tank only. p. 43
What is the standard operating force for the parking brake?
The standard operating force for the parking brake is 4 to 6 kg (9 to 13 lbs). Never adjust the operating force to less than 4 kg (9 lbs). p. 37
What is the required specific gravity for the electrolyte in a storage battery?
The electrolyte furnished for the storage battery must have a specific gravity of 1.280 ± 0.01 at 20°C. p. 25
What is the standard play for the steering wheel?
The standard play for the steering wheel is 10 to 20 mm (0.4 to 0.8 in). If the play is outside this range, it should be adjusted by a Komatsu Forklift distributor. p. 37
Is this Komatsu FB10–FB18 Series manual a PDF I download?
A single searchable PDF file of 55 pages, downloadable right after payment. Nothing ships, nothing waits in the mail.
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Zero restrictions. The PDF is DRM-free. Print whatever sections you need to take out to the shop. Standard letter or A4 paper works.










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