Operating Instructions for Explosion-Proof Chain Hoist Trolley

The explosion-proof chain hoist trolley is designed for lifting operations in flammable and explosive environments such as petroleum, chemical, and mining industries. Its correct operation is crucial for ensuring safety in hazardous areas. Below is a comprehensive guide covering its operating principles, steps, and safety precautions:

1. Equipment Overview and Features

Explosion-Proof Design: Constructed with copper alloy materials (e.g., aluminum bronze, beryllium bronze) to prevent sparks during operation.

Structure and Principle:

Motor-Driven: Uses an explosion-proof motor to drive the chain for lifting and lowering loads.

Braking System: Equipped with a brake to control the load's descent and ensure safe stopping.

Safety Devices: Includes overload protection, limit switches, and emergency stop functions.

2. Pre-Operation Inspection

Before use, perform the following checks:

Visual Inspection: Ensure the trolley, chain, hooks, and control buttons are undamaged and free of deformation.

Electrical Check: Verify the power supply voltage matches the device's requirements and that all electrical connections are secure.

Environmental Check: Confirm the workspace is free of flammable gases, liquids, or explosive dust.

3. Standard Operating Procedures

3.1. Preparation

Select a Stable Anchorage Point: Secure the trolley to a robust structure (e.g., steel beam) before lifting.

Load Assessment: Ensure the load's weight does not exceed the trolley's rated capacity.

3.2. Lifting Operation

Start-Up:

Press the "Up" button to activate the motor and lift the load.

Observe the load's movement and ensure the chain remains straight without twists.

Lowering Operation:

Press the "Down" button gently to lower the load.

Avoid sudden stops or reverses to prevent load sway.

3.3. Safety Protocols

No Overloading: Strictly adhere to the rated load capacity.

Avoid Side Loads: Do not use the trolley for horizontal pulling or impact loading.

Operator Position: Stand clear of the load and chain during operation.

4. Emergency Measures

Power Failure: If a power outage occurs, manually engage the brake to prevent the load from dropping.

Equipment Malfunction: Stop immediately if abnormal noises, vibrations, or overheating occur. Report issues to maintenance personnel.

5. Post-Operation Procedures

Secure the Load: After use, lower the load to the ground and disengage the hook.

Storage: Store the trolley in a dry, ventilated area to prevent corrosion.

Maintenance:

Daily Checks: Clean debris and lubricate moving parts.

Regular Inspections: Conduct monthly inspections of the chain, brakes, and electrical components.

6. Safety Training and Compliance

Operator Qualifications: Ensure operators receive specialized training and hold relevant certifications.

Record-Keeping: Maintain logs of inspections, repairs, and operator training.

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