Commercial Washer-Extractor Mechanics, Bearings, and Suspension Systems

This foundational course prepares service technicians to maintain, diagnose, and overhaul heavy industrial washer-extractors. Learners explore structural framing, cylinder geometry, drive transmissions, mechanical seals, and dynamic load physics unique to commercial wash wheels. Emphasizing preventative maintenance and mechanical integrity, the curriculum systematically details main trunnion shafts, spherical and tapered roller bearing arrangements, dynamic water seals, and structural suspension components, including pneumatic air bags, heavy coil springs, and hydraulic dampening cylinders. Students evaluate dynamic imbalance forces, centrifugal extraction stress governed by $G\text{-factor}$, and rotational vibration harmonics. Through extensive practical lab exercises and analytical problem-solving, technicians learn systematic disassembly, precise tolerance measurement using dial indicators and micrometers, hydraulic puller operations, and dynamic rebalancing. The course culminates in an end-to-end mechanical overhaul and alignment evaluation, preparing technicians to maximize machine uptime, extend component lifecycles, and ensure workplace safety across commercial, hospitality, and institutional laundry processing facilities.

InstructorJacob Calhoun