Open the catalog to website page five LOAD CHARTS FOR Foundation UNIT WITH NO COUNTERWEIGHT Requirements are presented in metric Proportions. All equipment Proportions, models, technical specs, calculations, etcetera., as explained, are issue to vary at manufacturer's discretion at any time and without notice. Weights are approximate and may vary. https://beckettukiwg.blogdigy.com/getting-my-lifting-system-to-work-46855498