Surel: [email protected]
Panduan langkah demi langkah untuk mengganti jaw crusher liners: 8 Fase kunci
Properly replacing jaw crusher liner increases production efficiency by 40% and extends component life by 2-3 bertahun-tahun. This comprehensive guide details professional techniques used insmall and large mining operations, covering safety protocols, tool requirements, and precision alignment methods. Follow our 8-phase process to minimize downtime to under 4 hours per replacement.
Pre-Replacement Preparation
1. Safety Lockout Procedure
- Disconnect power supply and engage mechanical lockout
- Release hydraulic pressure (＞5 minutes bleed time)
- Install fall protection for crusher pit access
2. Alat & Material Checklist
| Alat | Specification |
|---|---|
| Hydraulic Jack | 50-ton capacity |
| Torque Wrench | 300-800 N·m range |
| Liner Lifting Clamp | SWL 2,000kg |
Liner Replacement Process
3. Remove Worn Liners
- Loosen wedge bolts in diagonal pattern (30% torque reduction)
- Menggunakanliner removal tools to break corrosion bond
- Extract upper wedges first, then side plates
4. Membersihkan & Inspect Mounting Surface
- Remove debris with pneumatic chisel
- Check for cracks using dye penetrant
- Verify flatness (＜0.5mm/m tolerance)
5. Install New Liners
| Component | Torque Spec | Sequence |
|---|---|---|
| Fixed Jaw | 650 N·m | Center-out |
| Movable Jaw | 720 N·m | Cross pattern |
6. Alignment Verification
Use laser alignment tools to ensure:
- Parallelism ＜0.2mm/m
- Vertical runout ＜0.3mm
- Propercrushing chamber geometry
Post-Installation Procedures
7. Run-in Process
- Start with 50% feed rate for 2 jam
- Monitor vibration (＜4.5 mm/s RMS)
- Retorque after 8 hours operation
8. Dokumentasi & Analysis
- Record liner serial numbers
- Measure initial wear pattern
- Updatepredictive maintenance schedule
Common Mistakes & Solutions
| Error | Consequence | Prevention |
|---|---|---|
| Improper torque | Liner movement | Use calibrated wrench |
| Missed alignment | Premature wear | Laser verification |
Quarry Productivity Improvement
A limestone operation reduced liner replacement time from 6.5 ke 3.8 hours by:
- Implementing our 8-step process
- Using optimized liner profiles
- Training crew on crusher kinematics
Essential Tools for Efficient Replacement
- Liner handler with vacuum lift
- Infrared thermal camera (check bearing temps)
- Digital thickness gauge (wear measurement)
Precision Saves Costs
Replacing jaw crusher liner requires understanding torque specifications, alignment tolerances, and proper run-in procedures. Karena itu, by integrating this guide with your preventive maintenance program andequipment documentation, operations typically achieve 18-24 month liner lifecycles even in abrasive conditions.
Kantor Pusat
ada apa：+8615225176731
Surel: [email protected]
Alamat: TIDAK. 1688, Jalan Timur Gaoke, Kabupaten baru Pudong, Shanghai, Cina.
Situs web: https://www.mill-sbm.com/
