Function

• Provides constant tension to the belt to eliminate slip or noise
• Dampens belt vibrations caused by engine firing
• Tunes the accessory drive system for proper function
• Maintains alignment of the belt
• Automatically adjusts for belt stretch and wear

Automatic tensioners using conventional, high quality round wire torsion spring construction are inherently better able to ‘balance’ this offset load internally within the tensioner than are alternate flat wire (‘clockspring’) tensioners. This can result in generally improved tensioner alignment & durability of torsion spring tensioners in these applications. These robust torsion spring tensioner designs also do not need anti-friction PTFE filler strips as most often must be used on flatwire tensioners.

Features

All brands of replacement automatic belt tension-ers are not alike. Automatic tensioners that are specifically designed for the unique packaging & operating conditions of each engine & accessory belt layout configuration (‘application specific’) are recommended & highly preferred. When properly designed & applied, these belt tensioners will pro-vide pre-determined (‘engineered’), constant ten-sion & variable damping to the belt. The engi-neered output of these tensioners consistently maintain correct belt tension and help to dampen belt system vibrations, within the belt's replace-ment life.

The primary advantages of a well-designed automatic belt tensioner are:

• Maintains its correct alignment to the belt
• Automatically maintains correct accessory belt tension
• Automatically dampens normal accessory system vibrations
• Eliminates need to adjust / re-tension belts
• Prevents belt slip (noise / excessive belt wear)
• Optimizes life of belt
• Provides for indication of correct belt length
• Provides indication of excessive belt stretch (replacement)
• Improves belt system alignment
• Extends accessory system component life

Litens accessory drive tensioners provide:

• Equal or greater than Original Equipment quality and performance
• Custom, application-specific fit, form and function
• Quieter and smoother accessory drive operation
• Extended accessory drive component durability
• Constant ‘engineered’ belt tension
• Improved belt life

Function and Features

Litens routing idler pulleys and tensioner pulleys are pro-duced to Original Equipment form, fit, function, and mate-rial specifications to ensure optimum performance and durability. Pulley materials may vary (plastic vs. steel) depending upon exposure to heat, location on the engine, and system tuning. For best results, always replace idlers and tensioner pulleys with those made with the original equipment material selection.

• The latest generation of Mercedes Crankshaft Isolator Pulley for Diesel applications
• Permits lowest operating belt tension
• Increases system durability
• Improves fuel economy
• Reduces emissions

Function and Features

• Provides constant belt tension to maintain timing drive synchronization and controls belt meshing noise
• Prevents belt tooth skip
• Dampens belt vibrations caused by engine firing
• Tunes the timing drive for optimum performance
• Maintains alignment of belt
• Compensates for effects of engine thermal expansion and contraction on timing drive
• Adjusts for belt stretch and wear
• Application specific designs with a tuned tension level
• Patented and proven damping technology that provides quiet and smooth timing drive system operation
• “Anti-kickback” feature to prevent belt tooth skipping or jumping
• Precision pivot shaft design to ensure proper alignment of the belt
• Detailed engine specific installation procedure provided with each tensioner Function and Features

Function

• Provides constant tension to the belt to eliminate slip or noise
• Dampens belt vibrations caused by engine firing
• Tunes the accessory drive system for proper function
• Maintains alignment of the belt
• Automatically adjusts for belt stretch and wear

Automatic tensioners using conventional, high quality round wire torsion spring construction are inherently better able to ‘balance’ this offset load internally within the tensioner than are alternate flat wire (‘clockspring’) tensioners. This can result in generally improved tensioner alignment & durability of torsion spring tensioners in these applications. These robust torsion spring tensioner designs also do not need anti-friction PTFE filler strips as most often must be used on flatwire tensioners.

Features

All brands of replacement automatic belt tension-ers are not alike. Automatic tensioners that are specifically designed for the unique packaging & operating conditions of each engine & accessory belt layout configuration (‘application specific’) are recommended & highly preferred. When properly designed & applied, these belt tensioners will pro-vide pre-determined (‘engineered’), constant ten-sion & variable damping to the belt. The engi-neered output of these tensioners consistently maintain correct belt tension and help to dampen belt system vibrations, within the belt's replace-ment life.

The primary advantages of a well-designed automatic belt tensioner are:

• Maintains its correct alignment to the belt
• Automatically maintains correct accessory belt tension
• Automatically dampens normal accessory system vibrations
• Eliminates need to adjust / re-tension belts
• Prevents belt slip (noise / excessive belt wear)
• Optimizes life of belt
• Provides for indication of correct belt length
• Provides indication of excessive belt stretch (replacement)
• Improves belt system alignment
• Extends accessory system component life

Litens accessory drive tensioners provide:

• Equal or greater than Original Equipment quality and performance
• Custom, application-specific fit, form and function
• Quieter and smoother accessory drive operation
• Extended accessory drive component durability
• Constant ‘engineered’ belt tension
• Improved belt life

Function and Features

Litens routing idler pulleys and tensioner pulleys are pro-duced to Original Equipment form, fit, function, and mate-rial specifications to ensure optimum performance and durability. Pulley materials may vary (plastic vs. steel) depending upon exposure to heat, location on the engine, and system tuning. For best results, always replace idlers and tensioner pulleys with those made with the original equipment material selection.

• The latest generation of Mercedes Crankshaft Isolator Pulley for Diesel applications
• Permits lowest operating belt tension
• Increases system durability
• Improves fuel economy
• Reduces emissions