How Should Forklifts Be Maintained? Worth Saving
2026-08-31 19:16:19 · 294 views
I. Daily Maintenance
Remove oil stains and dust from the vehicle body, with emphasis on cleaning the radiator fins.
Tire inspection: Check whether the tire pressure is normal (for solid tires, check the wear condition), and remove foreign objects from the tread.
Fluid inspection:
Engine oil/hydraulic oil: The oil level should be between the scale marks (check when the engine is cold).
Coolant: Keep the expansion tank at least 1/2 full.
Brake fluid: Observe whether the fluid level in the reservoir meets the standard.
Key component inspection:
Chain lubrication: Use special lubricating oil to lubricate the mast chain.
Oil leakage inspection: Check the bottom of the engine, hydraulic pump, and cylinders for oil stains.
Instrument panel warning lights: Confirm there are no fault indications.
II. Regular Maintenance (by hour/mileage)
50-hour maintenance:
Tighten all exposed bolts (especially wheel hub and mast bolts).
Clean the air filter (shorten the interval in dusty environments).
250-hour maintenance (or monthly):
Replace engine oil and filter (for diesel engines, CI-4 grade or above oil is recommended).
Check the transmission oil level (for hydrostatic drive vehicles).
Adjust the brake pedal free play (10-15 mm is optimal).
500-hour maintenance (or quarterly):
Replace the hydraulic oil filter (note: release system pressure first).
Check hydraulic oil contamination level (particle counter testing is recommended).
Apply grease to the mast guide rails (use molybdenum disulfide lithium-based grease).
1000-hour maintenance (or semi-annually):
Replace hydraulic oil (ISO VG32 or 46 anti-wear hydraulic oil).
Check the steering axle pin shaft wear (replace if radial clearance > 2 mm).
Test the lowering speed of the lifting system (should be <= 600 mm/s at full load).
III. Seasonal Maintenance
Winter (when < 5 degrees C):
Replace with low pour point hydraulic oil (such as L-HV32).
Adjust battery electrolyte specific gravity to 1.28-1.30.
For diesel vehicles, add diesel fuel of -10# or lower.
Summer (when > 30 degrees C):
Clean dust accumulation from the radiator (reverse blow with compressed air).
Check fan belt tension (10-15 mm deflection when pressed).
IV. Maintenance for Long-Term Storage
Lower the forks to the lowest position.
Disconnect the negative terminal of the battery (charge once a month).
Inflate tires to 120% of standard value.
Start and run the hydraulic system for 5 minutes every week.
V. Professional Maintenance Recommendations
Every 2000 hours, professional personnel should perform:
Hydraulic pump pressure test (ensure within +/-5% of rated pressure).
Steering system angle calibration.
Mast deformation inspection (measure with a laser level).
Key component replacement intervals:
Hydraulic oil: 2000 hours or 2 years.
Transmission oil: 4000 hours (not required for battery-powered vehicles).
Brake pads: Must be replaced when worn to 3 mm.
VI. Maintenance Record Template
Date Hours Maintenance Content Parts Replaced Next Maintenance Plan
Example 1250 Replace hydraulic oil/filter HV46 oil 20L 2000-hour system inspection
Precautions:
Before operation, be sure to cut off the power supply (for battery-powered vehicles) or shut off the engine (for internal combustion vehicles).
Before servicing the hydraulic system, release the pressure first.
Do not mix different types of lubricating grease (different models may cause chemical reactions).
Changjian Machinery Co., Ltd. has a complete vehicle test site, R&D center, marketing center, and forklift training base, and is committed to independent development and innovation, as well as the research, development, production, and sales of various forklifts. The company follows the corporate spirit of "Excellent Quality, Always Leading" and adheres to the quality philosophy of "Quality Creates Trust," providing high-quality products and serving customers. Welcome to call the hotline: +8615065751292, or click online customer service. Changjian Off-Road Forklift is dedicated to serving you!