Metso C140 Jaw Crusher Assembly: Procedures & Considerations
Successfully assembling a Metso C140 jaw crusher is critical for achieving optimal performance, longevity, and operational safety. While always adhering strictly to the official Metso Outotec assembly manual and safety guidelines, this overview highlights essential procedures and critical considerations for personnel involved in the process.
Foundation & Preparation: The Critical Base
1. Foundation Integrity: Ensure the foundation is meticulously prepared according to Metso Outotec drawings, capable of supporting the crusher’s weight and dynamic loads. Concrete must be fully cured.
2. Base Frame Alignment: Carefully position the base frame (or frames) onto grout-filled foundation bolts. Use precision levels and alignment tools to achieve perfect levelness in all directions and accurate positioning relative to feed and discharge points. Anchor bolts must be tightened evenly to specified torques following the recommended sequence.
3. Sub-Assemblies: Prepare major sub-assemblies like the pitman assembly, flywheels, eccentric shaft, bearings, toggle plates/seats, jaw dies (liners), cheek plates, and adjustment wedges according to manual instructions before final installation.
Core Component Assembly
1. Bearing Installation (Eccentric/Pitman): This is a high-precision step.
Meticulously clean bearing seats on the eccentric shaft and pitman bore.
Heat bearings uniformly using oil baths or induction heaters only as specified by Metso Outotec. NEVER use open flames. Monitor temperature precisely to avoid overheating.
Slide heated bearings onto their respective shafts/seats smoothly until fully seated against shoulders. Allow them to cool naturally without forced cooling.
2. Pitman & Eccentric Shaft Assembly:
Carefully lift the pitman assembly into position within the crusher frame.
Install the eccentric shaft through the frame bearings and into the pitman bearings according to manual instructions. Ensure correct orientation of timing marks on flywheels/eccentric shaft if applicable.
3. Flywheel Installation: Secure flywheels onto each end of the eccentric shaft using designated locking assemblies or keys and bolts. Tighten bolts progressively in a star pattern to specified torques.
4. Toggle System Installation:
Install rear toggle seats securely onto the base frame/rear frame area.
Position rear toggle plates into their seats.
Install front toggle seats onto
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