Detailed explanation of the characteristics and operating specifications of manual hydraulic forklifts

1、 The core characteristics of manual hydraulic forklifts

Easy to operate, flexible and efficient

Power source: By manually operating the hydraulic handle and using hydraulic cylinders to push the forks up and down, there is no need for fuel or electricity, making it suitable for short distance, low-frequency handling.

Compact structure: The car body is compact, with a small turning radius (usually ≤ 1.5 meters), and can operate flexibly in narrow passages (such as between 1.8 meter wide shelves).

Low cost: The purchase cost is only 1/5-1/10 of an electric forklift, and maintenance only requires regular lubrication and replacement of hydraulic oil, making it suitable for budget limited enterprises.

Widely applicable scenarios

Light load handling: The rated load is usually 1-5 tons, suitable for handling standardized goods such as pallets and cardboard boxes.

Special environment adaptation:

Explosion proof type: It adopts a stainless steel chassis and a closed fork tip, meeting the hygiene standards of the food and pharmaceutical industries.

Narrow channel type: The fork width is adjustable, compatible with European/American standard pallets, and supports turning within a 1.8-meter wide channel.

Low temperature type: Optimized hydraulic system, can work normally in -30 ℃ cold storage.

safety design

Overload protection: Equipped with a pressure reducing valve, it automatically releases pressure when the system pressure exceeds 1.65MPa, preventing hydraulic cylinder from bursting.

Emergency braking: When the tilt angle exceeds 3 °, the fork will automatically lock to prevent the cargo from slipping.

Mechanical locking: The operating handle integrates a locking mechanism that can fix the position of the fork when not in use, preventing accidental movement.

2、 Manual hydraulic forklift operation specifications

1. Pre operation inspection (key items)

Hydraulic system: Check whether the hydraulic cylinder leaks and whether the hydraulic oil level is below 5mm above the rubber container liquid level.

Wheel system device:

Confirm that the pulley rotates flexibly and there are no foreign objects entangled (such as cotton thread or cloth strips).

Check the wear of the wheels, with a gap of ≤ 2mm between the wheel width and the bracket to avoid jamming.

Structural integrity:

Check whether the fork is symmetrical and straight, and whether the fork arm height adjustment function is normal.

Confirm that all nuts and bolts are securely fastened without any looseness or missing parts.

Environmental assessment:

The ground should be dry and flat, with a slope inclination of ≤ 2%.

The width of the channel must meet the minimum turning radius requirement of the equipment.

2. Operation steps (standardized process)

Suppression (lifting of goods):

Turn the control handle to the lower position, press the directional handle, and slowly pump pressure to raise the fork.

Overloading is strictly prohibited: The weight of the goods shall not exceed the rated load (such as the maximum load capacity of a 1.5-ton forklift is 1500kg).

Fork centered: Ensure that the center of gravity of the goods is located at the center of the forklift, and the length of the fork is equal to or greater than the length of the pallet.

Handling (horizontal movement):

After the goods leave the ground, turn the handle to the center position and drag the forklift slowly (speed ≤ 3 kilometers per hour).

Turning deceleration: The speed within the turning radius should be reduced to below 1 kilometer per hour to avoid rollover.

Do not apply sudden brakes: Sudden stopping may cause the goods to tip over or damage the hydraulic system.

Unloading (putting down goods):

After arriving at the destination, turn the handle to the upper position and slowly release the pressure to make the goods land smoothly.

Forklift fully withdrawn: Confirm that the fork is completely removed from below the shelf before moving the forklift.

Empty vehicle operation:

Properly press and lift the forklift until the front axle support frame is at least 10mm off the ground to avoid wear and tear.

It is strictly prohibited to carry people or slide while empty to prevent loss of control.

3. Operational taboos (high-risk behavior)

Overloading/Unbalanced Load: Single fork operation or cargo center of gravity deviation can cause the forklift to tip over.

High altitude throwing: It is strictly prohibited to throw goods from a height onto a forklift to avoid damaging the vehicle or goods.

Slope operation:

It is prohibited to load and unload goods on slopes. If it is necessary to pass through slopes, it is necessary to ensure that:

Slope inclination ≤ 2%;

The forklift is unloaded, with the fork arms facing downhill;

The operator stands on the side of the forklift to avoid inertia causing loss of control.

Physical contact with hazardous areas: It is strictly prohibited to place hands or feet under the fork, near mechanical lifting components, or on the cargo during operation.

Static overload: Prolonged static overload can cause sustained hydraulic system pressure and damage to the cylinder seal ring.

3、 Key points of maintenance and upkeep

Routine maintenance

Cleaning: After each use, remove any debris from the forks and wheel system to prevent corrosion.

Lubrication: Add lubricating oil (such as butter) to the axle and bearings every month to reduce wear.

Tightening inspection: Check and tighten all nuts and bolts every six months to prevent loosening.

Regular maintenance

Hydraulic system: Replace hydraulic filter element every 500 hours, replace hydraulic oil and filter every 1000 hours.

Wheel system replacement: When the wheel wears down to 80% of its original diameter, it needs to be replaced to avoid slipping.

Structural inspection: Check the straightness of the forks annually (deviation ≤ 3mm), and ensure that there are no cracks in the welds of the fork frame.

Scrap standard

The hydraulic cylinder leaks severely and cannot be repaired;

The deformation of the fork exceeds 1% of its original length;

Damage to the wheel system leads to unstable driving;

After a vehicle experiences a serious collision or rollover accident.

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