Many old customers do not know how to replace the device after the screw lift is damaged, today Xiaobian will teach you how to replace the screw lift of the base paper cutting saw usually involves the following steps.

1. Pre-Replacement Preparation of Screw Lift

1.1 Safety Protocol Implementation

• Lock out/tag out (LOTO) the power supply (440V AC verification)
• Prepare personal protective equipment (safety goggles, cut-resistant gloves)
• Gather required tools:
  • Torque wrench (50-200Nm range)
  • Dial indicator (0.01mm precision)
  • Laser alignment tools

1.2 Technical Documentation Review

• Consult OEM manual for:
  • Specific torque specifications
  • Lubrication requirements
  • Alignment tolerances

2. Removal Procedure of  Screw Lift

2.1 System Disassembly

flowchart TD
    A[Power Disconnect] --> B[Remove Safety Guards]
    B --> C[Release Drive Coupling]
    C --> D[Extract Mounting Bolts]
    D --> E[Lift Removal]

2.2 Component Handling

• Support lift mechanism during removal (min. 2-ton capacity hoist)
• Label all electrical connections (photograph before disconnection)
• Preserve shims for reinstallation reference

3. Installation Process

3.1 **Precision Alignment Steps

• Verify mounting surface flatness (0.05mm/m²)
• Apply anti-seize compound to fasteners (Loctite 243 recommended)
• Torque bolts in crisscross pattern (refer to OEM specifications)

3.2 Critical Installation Parameters

4. Post-Installation Verification

4.1 Functional Testing Protocol

• Conduct dry run without load (3 complete cycles)
• Measure current draw (compare to nameplate rating)
• Verify smooth operation (vibration <2.5mm/s)

4.2 Performance Validation

• Test with 25%/50%/75%/100% load capacity
• Check for hydraulic leaks (if applicable)
• Validate limit switch functionality

5. Maintenance Recommendations of Screw Lift

5.1 Lubrication Schedule

• Grease nipple servicing every 200 hours
• Use ISO VG 68 synthetic grease
• Monitor lubricant condition monthly

5.2 Preventive Maintenance

• Quarterly backlash inspection
• Annual ball screw replacement (if wear >0.3mm)
• Biannual motor coupling inspection

Important Notice:

• Always use OEM-approved replacement parts
• Record all maintenance activities in equipment log
• Require operator recertification after major component replacement

For technical support, contact our service department at:

This procedure typically requires 4-6 hours for qualified technicians. Non-professionals attempting this repair may void equipment warranties and risk personal injury. Always prioritize safety and consult manufacturer documentation for model-specific requirements.