Resources | MaintenanceMaintenanceInstructions & EducationMaintenanceInstructions & EducationDownloads Cylinder Replacement 3150, 3150HR, 3152, 3152HR Custom Adjustments Cleaning Guide 3150, 3150HR, 3152, 3152HR Owner's Manual Videos Assembly Instructions for 3150, 3150HR, 3152, 3152HR Chair Cleaning Guide 3150/3152 Vam Replacement 3142 | 3150 | 3152 Cylinder Replacement Coverset Selection and Servicing 3142 Coverset Replacement 3150 & 3152 Coverset Replacement (includes 3150HR and 3152HR models)Need Help? Contact Us