Emergency shutdown: Cut power, lock out/tag out, and try manual handwheel rotation. If locked solid, likely foreign objects (broken punch, metal debris) are jammed-remove the relevant die set, never force rotation. We supply custom handwheel tools and puller kits for safe disassembly.
Mechanical checks:
- Inspect pressure screw/nut for burrs or wear; axial runout should ≤0.05mm. We replace with hardened steel screws and improved thread forms.
- Check worm‑gear backlash (0.03–0.05mm typical); adjust shims or replace worn gears. We custom‑make worm gear pairs in bronze/hardened steel.
- Verify hydraulic overload (12–15MPa for GZP series); check seals and relief valves. We provide seal kits and charging tools.
Lubrication & cleaning: Apply food‑grade lithium grease (NLGI 2) to screw and guides; remove residual powder. Use hydraulic puller for stuck dies-no hammering. We supply puller attachments and bore repair sleeves.
Electrical diagnosis: Check servo motor phase resistance (deviation <1%) and encoder feedback; inspect PLC overload alarms (e.g., Siemens F07902). We custom‑make coupling elastomers and shielded cables.
Professional service: If unsolved, contact OEM for seal specs and calibration. Use laser alignment for spindle concentricity (≤0.01mm). We provide bearing replacement, alignment shims, and test load blocks for pressure validation.
Caution: Forcing the handwheel may break the worm gear (repair cost ~$3k–5k) or damage pressure sensors. Always follow manual specifications.Hansheng Automation can stock critical wear parts based on your equipment records for rapid response.
