1. Lubrication Management: Reduce Wear and Extend Service Life
Regular Lubricant Refills
Before daily operation, inspect lubrication points (e.g., gearbox, bearings, mandrel) and refill with 30# engine oil or gear oil to ensure proper lubrication.
Replace gear oil every 200 hours and clean the lubrication system with diesel beforehand to remove impurities.
Example: A construction site delayed gear oil replacement, causing severe gear wear and a 30% increase in repair costs.
Avoid Improper Lubrication
Do not use a small-diameter mandrel for bending large-diameter rebar, as this accelerates mechanical wear and shortens equipment lifespan.
2. Hydraulic System Maintenance: Ensure Stable Power
Hydraulic Oil Management
Check the oil level weekly. If below the oil window, refill with ISO HM46 or MOBIL DTE25 hydraulic oil.
For new machines, perform the first oil change after 2,000 hours, then every 4,000–6,000 hours. Clean the oil tank and filter simultaneously.
Data: Hydraulic oil contamination raises system failure rates by 40%. Regular changes mitigate this risk.
Seal Inspection
Regularly inspect hydraulic cylinder and pipeline seals. Replace any aged or leaking seals immediately to prevent pressure drops.
Oil Temperature Control
Maintain hydraulic oil temperature between 35°C and 60°C. If it exceeds 70°C, shut down the machine to cool down and avoid oil degradation or component damage.
3. Electrical Safety: Prevent Electric Shock and Short Circuits
Grounding Protection
The equipment must be reliably grounded, and the power cord must be controlled via a magnetic starter. Direct button connections are prohibited to prevent electric shock.
Case Study: A site lacked grounding, resulting in an operator's electrocution, equipment damage, and a one-week shutdown.
Wiring Inspection
Regularly check motors, switches, and wiring for aging or damage. Tighten terminals to prevent short circuits or poor contact.
4. Mechanical Component Inspection: Ensure Smooth Operation
Core Component Checks
Daily inspect the mandrel, stopper, turntable, and protective cover for cracks or damage. Replace immediately if needed.
Check V-belt tightness (10–15mm deflection under thumb pressure). Inconsistent tension reduces transmission efficiency.
Fastener Maintenance
Regularly tighten bolts on the motor base, bearing housing, and reducer to prevent loosening and vibration.
Mold Replacement Specifications
When bending high-hardness or low-alloy rebar, replace the mandrel and limit diameter as specified on the nameplate to avoid mold overload damage.
5. Operating Specifications: Avoid Human Injury
No-Load Test Run
Perform a no-load trial before daily startup to detect abnormal sounds or vibrations. Do not replace the mandrel, adjust angles, or add lubricant during operation.
Load Control
Do not bend rebar exceeding the nameplate-specified diameter to prevent overload, shutdown, or equipment damage.
Example: Overloading a 36mm rebar bender caused motor burnout, costing 20,000 yuan in repairs.
Safe Operation
Operators must stand on the fixed side of the machine and avoid the working radius to prevent rebar rebound injuries.
6. Storage and Maintenance: Prevent Rust and Aging
Long-Term Storage
If unused for extended periods, clean the machine, apply anti-rust oil, and store in a dry, ventilated area.
Case Study: Outdoor storage without rust protection led to severe corrosion, increasing repair costs by 50% after three months.
Post-Storage Inspection
Before restarting after long-term storage, conduct a full inspection and test run to ensure all components function properly.
