

The Komatsu Forklift Trucks FG25STUS-14 is a robust and reliable internal combustion forklift designed for heavy-duty applications. Known for its exceptional maneuverability and lifting capacity, this model is ideal for warehouse and industrial environments, ensuring efficient material handling and productivity.
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Tensioning Guide
Belt-diagram
C-120 pulleys
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Daily Electrical System Inspection
Replace Roller and Pulley
Install Engine B-120
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Motion Industries
Applied Industrial Technologies
Electrical Brothers
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Drive Motor
B2 Rollers
Tensioning System
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Komatsu Forklift Trucks FG25STUS-14
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Fuses And Relays Replacement
32.1 REPLACING FUSES AND RELAYS 32.1.1 CHASSIS FUSES (ALL TRUCKS) NOTICE:
• When replacing the fuses, always turn OFF the electric power first (turn the starting switch to the OFF position).
• Always replace the fuses with a fuse of the same capacity.
The CHASSIS fuses are used to protect the electrical components and wiring from burning out and are located in a fusebox located to the left of the steering column and below the dashboard panel of dials and gauges.
1. Turn the starting switch to the OFF position.
2. Open the cover of the fuse box and replace necessary fuses inside. To remove the cover from the fuse box, push the side face of the cover lightly with your fingers and pull it out.
The fuse number in the tables below correspond from right to left in the illustration. Check the relationship between the fuses and the electrical components when replacing.
32.1.2 ENGINE FUSES AND RELAYS
K21 AND K25 ENGINES ONLY (BX GAS AND LP TRUCKS)
200 Hourly or 1 Monthly Forklift Trucks Check
Check wheel rims for deformation, cracking and damage
Check wheel bearings for play and abnormal noise
Check hydraulic cylinders for looseness, deformation, cracking, damage and wear
Check all piping/tubing/connectors for oil leakage, deformation or damage
Check operation of hydraulic cylinders
Check hydraulic drift of lift cylinder
Check hydraulic drift of tilt cylinders
Check movement of work equipment control lever(s)
Check forks and fork stopper for deformation, cracking, damage and wear
Initial 200 Hours or 1 Month Forklift Trucks Maintenance
Change oil in hydraulic tank
Replace line filter
Clean strainer
Clean inside of tank
Change oil in engine oil pan
Replace engine oil filter cartridge (gasoline and diesel engines)
Check, adjust engine intake and exhaust valve clearance
Tighten (retorque) engine cylinder head bolts
Check air cleaner
2000 Hourly Forklift Trucks Maintenance
Check and adjust fuel injection timing (diesel engine)
Perform this operation to maintain compliance with EPA Diesel Engine Exhaust regulations.
Replace LPG mixer air valve diaphragm, under normal operating conditions.
Replace more often in cold or severe service applications.
Replace O-ring for LPG tank valve.
Sign off on the 2000 hourly forklift trucks maintenance
600 Hourly or 3 Monthly Forklift Trucks Maintenance
Clean LPG filter
Clean the “bronze mesh” LPG filter every 600 hours of operation or every 3 months of service, whichever comes first.
Replace the filter element every 2,400 hours of operation or every 12 months, whichever comes first.
In dusty operating conditions, carry out maintenance as often as possible.
1. Carefully remove the LPG filter (8) from the filter cover (10) located on the lower portion of the LPG Solenoid Valve. Use care not to damage the O-ring (9).
2. Clean bronze mesh filter with suitable cleaning solvent.
3. While wearing eye protection, blow out and dry the filter.
4. Reinstall the cleaned filter. Ensure that the O-ring is properly seated and gently tighten cover screws
Inspect PCV valve and hoses (gasoline engine)
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Chain Wear Scale
661923
Chain Wear Scale
661923
Chain Wear Scale
661923
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