Lubrication Practices & Techniques
Lubricant types, application methods for hinges, rollers, springs, and nylon roller considerations.
- Select the correct lubricant type for each garage door component
- Demonstrate proper lubrication techniques for hinges, rollers, and springs
- Explain why nylon rollers require different treatment than steel rollers
- Identify lubricants that should never be used on garage door systems
- Describe the consequences of over-lubrication and under-lubrication
Lección 1
Lubricant Types & Selection Guide
Why Lubrication Matters
Proper lubrication is one of the most important maintenance tasks for any garage door system. Metal-to-metal contact between hinges, rollers, springs, and bearings generates friction that causes wear, noise, and heat. The correct lubricant reduces friction, prevents corrosion, repels moisture, and extends component life.
The exam tests your knowledge of which lubricants to use, where to apply them, and which products to avoid.
Recommended Lubricant Types
Recommended
White lithium grease - Best for metal-to-metal: hinges, springs, bearing plates
Silicone-based spray - Good for tracks, weatherseals, nylon parts
Garage door specific spray - Formulated for all door components
Never Use
WD-40 - Not a lubricant; it is a solvent/degreaser that strips existing lube
Motor oil - Attracts dirt and creates abrasive paste
Petroleum grease - Too heavy; attracts debris and can damage nylon
White Lithium Grease
White lithium grease is the industry-standard lubricant for garage door metal components. It adheres well to vertical and overhead surfaces, resists washout from moisture, maintains viscosity across a wide temperature range, and does not attract excessive dirt. It is available in aerosol spray cans for easy application.
Apply white lithium grease to:
- All hinge pivot points
- Steel roller bearings and shafts
- Torsion spring coils (full length)
- Bearing plates and end bearings
- Cable drums where the cable contacts the drum
Silicone-Based Lubricants
Silicone spray is a lighter lubricant suitable for surfaces where heavy grease would attract dirt or where nylon components are present. Use silicone spray on:
- The inside of vertical and horizontal tracks (light coat only)
- Weatherseal contact surfaces to prevent sticking
- Lock mechanisms and slide bolts
- Nylon roller stems (never grease the nylon wheel itself)
WD-40 Is Not a Lubricant
This is a common exam question. WD-40 is a solvent and water displacer, not a lubricant. Spraying WD-40 on garage door components strips existing lubrication and leaves parts unprotected. Always use a proper lubricant.
White lithium grease is the standard lubricant for metal garage door components. Silicone spray is used for lighter applications and nylon parts. Never use WD-40 - it is a solvent that removes lubrication rather than providing it.