Mining and Heavy Industry - H-T-L USA

1 2 3 4 STEP 1: Page 12-19 ASSESS APPLICATION / EQUIPMENT STEP 3: Page 22-25 SELECT SYSTEM / LUBRICANT STEP 2: Page 20-21 ASSESS INSTALLATION METHOD STEP 4: Page 26-33 SELECT MOUNTING TYPE / KIT Challenges Lubrication assessment criteria Solutions © 2019 - H-T-L perma USA LP | www.permausa.com | 19  Historical lubrication practices  Requirements for safe access  Desired service schedule  Location of lubrication points on bearing housings For fan bearing and seal lubrication the following factors are generally assessed in order to develop the lubrication solution:  Bearing types & speeds  Seal types  Characteristics of recommended lubricant  Operating conditions Industry: Quarry Application: Fan / blower bearings Lubrication system: perma STAR VARIO Installation solution: Direct mount Industry: Power Plant Application: Fan / blower bearings Lubrication system: perma STAR VARIO Installation solution: Remote mount Lubrication challenges associated with fan maintenance include:  High speed and high mechanical working of the grease requires more frequent and controlled grease replenishment / exchange  High operating temperature for hot fan applications requires more frequent and controlled grease replenishment and exchange  Insufficient grease exchange intervals may result in lubrication deterioration or more extreme ‘starvation’ conditions  Large or excess grease addition volumes results in grease ‘churning’ and overheating  Hazardous working conditions (rotating equipment pinch points, falling from access ladders or platforms, exposure to high levels of airborne dust or heat / steam) Maintenance challenges which restrict or limit effective relubrication may result in:  Inadequate / excessive lubrication causing deteriorating lubrication conditions, accelerated grease aging, oxidation and wear rates  Contamination of bearings (from inadequate lubrication) causing rapid deterioration of lubrication conditions  Accelerated wear rates (caused by contaminants or indadequate / excessive grease replenishment) and finally premature bearing failure