Maintenance of Intelligent Cantilever Crane Equipment

1.1. Two-piece assembly

To keep the compressed air flowing through the system dry, the filter-regulator-lubricator assembly should be drained regularly, depending on the air quality, to remove condensate and impurities.

When air quality is poor, please install additional filters for preliminary filtration.

We recommend that the filter be cleaned daily during the first month of operation; after one month of normal use, a regular cleaning schedule can be established based on the quality of the air supply.

Smart Cantilever Crane

1.2. Trachea

Regularly inspect the air hose near the swivel joint for signs of wear, kinking, and aging.

We recommend the following: during the first month of operation, the equipment should be inspected daily; after one month of normal use, inspections should be conducted weekly.

1.3. Load-Bearing Connections

All load-bearing connection bolts and welded joints shall be inspected thoroughly once a week; if any loosening or damage is detected, they shall be immediately re-tightened or replaced.

1.4. Lifting Gear

When work is completed or the equipment will be idle for an extended period, remove the workpiece and secure the lifting fixture.

Retract the fixture to the radius position and press the brake button.

Before performing equipment maintenance and inspection, lower the fixture to its lowest position and shut off the air supply. Never disassemble or assemble pneumatic cylinders while air pressure is still present to prevent injury.

1.5. No-Load Switching

1.5.1. Balance Control Method

The system employs a “pre-set balance” balancing control method for no-load and loaded conditions to facilitate the handling and transfer of workpieces.

No-load: The system is operating without a workpiece, i.e., the fixture is in an empty-load condition;

Load: the system’s loaded condition, i.e., the state in which the fixture is gripping the workpiece;

1.5.2. Balance Adjustment Method

Stepless adjustment is possible between no-load and full-load conditions.

The specific adjustment procedure is as follows: When the system is either unloaded or under load, rotate the balance adjustment knob until the fixture can “float” in mid-air—meaning the upward and downward operating forces required to move it are equal. At this point, the balance adjustment has been properly set.

1.5.3. Balanced Switching

The manual switch between “no-load” and “loaded” operation is performed by the operator.

In other words, after the system grips the workpiece, pressing the “Load” button switches the system to the loaded state, automatically transitioning the no-load balance state to the loaded balance state; when the system releases the workpiece, pressing the “Unload” button switches the system to the no-load state, automatically transitioning the loaded balance state to the no-load balance state.

1.6. System Balance Adjustment

The system’s lifting and lowering speeds, as well as its ability to maintain equilibrium at a given load, are adjustable and can be configured by adjusting the ZA valve or the balance control module on the main unit of the overhead crane.

The ZA valve is equipped with three adjustment screws, which, from right to left, are for “rise speed adjustment,” “balance adjustment,” and “drop speed adjustment,” respectively.

1.6.1. Ascending/Descending Operating Speed

Turning the “Rise Speed Adjustment”/UP screw clockwise slows the rise speed; turning it counterclockwise speeds up the rise.

Turning the “Descent Speed Adjustment”/DN screw clockwise slows the descent; turning the “Ascent Speed Adjustment”/UP screw counterclockwise speeds up the descent.

1.6.2. Equilibrium State

Rotating the “balance adjustment” screw clockwise raises the balance, causing the suspended load to drift upward; rotating the screw counterclockwise lowers the balance, causing the suspended load to drift downward.

1.6.3. Special Precautions

1) Please pay close attention to the connecting bolts at the joint areas to prevent loosening.