The inspection and testing of manual hydraulic forklifts should focus on safety critical components and functional integrity, covering four major aspects: pre use inspection, regular maintenance, performance testing, and compliance verification. The specific methods are as follows:

1、 Pre use safety check (daily/before each operation)

Hydraulic system testing

Hydraulic cylinder leakage inspection: Observe whether there is oil leakage from the hydraulic cylinder to ensure good sealing.

Hydraulic oil level and quality: Check whether the oil level in the tank is within the normal range (usually when the fork is at the lowest position, the oil level is about 50mm above the surface of the tank), and the oil should be clear and free of impurities.

Operation test: By conducting a no-load lifting test on the hydraulic system response, confirm that the lifting is smooth, without any jamming or abnormal noise.

Inspection of forks and load-bearing components

Fork status: Check whether the fork is deformed, cracked, or excessively worn (if the fork thickness wear exceeds 10%, it needs to be replaced).

Chain/pull rod integrity: Confirm that the chain is not broken, stretched, or loose, and that the pull rod is securely connected.

Wheel set and moving parts inspection

Wheel rotation flexibility: Manually rotate the wheel to confirm that there is no jamming, abnormal noise, or deflection.

Foreign object cleaning: Remove debris (such as ropes, plastic bags) wrapped around the wheels to prevent obstruction during operation.

Brake function test: Gently push the forklift and press the brake to confirm that the brake is sensitive and effective.

Control system and joystick inspection

Handle operation test: Check if the functions of the handle, such as pressing, lifting, and center locking, are normal and not stuck or loose.

Load balancing: When unloaded, the forks should be able to lift and lower smoothly without tilting or shaking.

2、 Regular maintenance and inspection (with a designated cycle based on usage frequency)

Lubrication and fastening

Lubrication point maintenance: Regularly add lubricating grease to friction parts such as axles, sealing rings, and roller bearings to reduce wear.

Fastener inspection: Check whether the axle nuts, bracket welds, caster fixing bolts, etc. are loose or damaged, and tighten or replace them in a timely manner.

Wheel Wear Assessment

Visual inspection: Observe the surface wear of the casters to confirm that there are no cracks, deformations, or excessive wear.

Rotation test: manually rotate the casters to confirm smooth rotation without any looseness or tightness.

Replacement standard: When the caster is worn down to less than 10% of its original diameter or damaged, it needs to be replaced.

Deep maintenance of hydraulic system

Hydraulic oil replacement: Replace the hydraulic oil according to the frequency of use (such as every 500 hours or every 6 months) and clean the oil tank.

Filter replacement: Regularly replace the hydraulic oil return filter to prevent impurities from entering the system.

Oil pump and control valve inspection: Check whether the oil pump has leaks or abnormal noise, and whether the control valve is flexible and not stuck.

3、 Performance testing and compliance verification

Load Testing

Rated load verification: Conduct lifting tests under the rated load of the forklift to confirm that the fork can smoothly lift the goods and there are no hydraulic system leaks.

Overload test (optional): According to safety regulations, some scenarios require short-term testing at 110% rated load to verify structural strength (requires professional operation).

Stability test

Tilt test: Tilt the forklift to the maximum angle (such as forward or sideways) to confirm that there is no risk of the cargo slipping.

Dynamic stability test: Drive at a constant speed on a flat surface and make an emergency stop to observe if the forklift is stable and not tipping over.

Compliance check

Safety sign verification: Confirm that the forklift nameplate and safety warning signs (such as maximum load and operating instructions) are clearly visible.

Standard compliance: Refer to national standards such as GB/T 27693-2011 "Pallet Stacking Trucks" to ensure that forklift design and manufacturing meet safety requirements.

4、 Inspection records and fault handling

record management

After each inspection, fill out the inspection form and record key data such as hydraulic oil status, fork wear, and wheel set condition.

Classify and label the discovered problems (such as hydraulic cylinder leakage and fork deformation), and develop a maintenance plan.

Principles of fault handling

Immediate shutdown: If any safety hazards are found during inspection (such as hydraulic system leakage or brake failure), the forklift must be immediately stopped until it is repaired.

Professional maintenance: Complex faults (such as oil pump damage, control valve failure) must be handled by professional maintenance personnel, and unauthorized personnel are prohibited from disassembling.

5、 Operating standards and safety precautions

Single person operation principle: Manual hydraulic forklifts can only be operated by one person, and when multiple people cooperate, a unified command must be designated.

Load limit: Overloading is strictly prohibited, and the weight of the goods must not exceed the rated load of the forklift.

Constant speed driving: When moving goods, maintain a constant speed to avoid sudden acceleration or braking that may cause the goods to tip over.

Empty load protection: When running empty, press and lift the fork appropriately to avoid friction and wear between the front axle support frame and the ground.

The main equipment produced by Hebei Makita: stage electric hoist, electric chian hoist, wire rope electric hoist，Hand chain hoist, lever hoist, pneumatic hoist and other lifting equipment