Liberty 4WD L4-2.8L DSL Turbo VIN 5 (2006)
Drive Belt Tensioner: Description and Operation
BELT TENSIONERS
DESCRIPTION
The automatic belt tensioner is a spring loaded arm and pulley assembly. The tensioner assembly is designed to apply constant pressure on the
accessory drive belt to maintain proper belt tension.
OPERATION
WARNING: THE AUTOMATIC BELT TENSIONER ASSEMBLY IS SPRING LOADED. DO NOT ATTEMPT TO DISASSEMBLE THE
TENSIONER ASSEMBLY.
The automatic belt tensioner maintains correct belt tension using a coiled spring within the tensioner housing. The spring applies pressure to the
tensioner arm pressing the arm into the belt, tensioning the belt.
If a new belt is being installed, the arrow must be within approximately 3 mm (1/8 inch) of indexing mark. Belt is considered new if it has been used
15 minutes or less. If this specification cannot be met, check for:
-
The wrong belt being installed (incorrect length/width)
-
Worn bearings on an engine accessory (A/C compressor, power steering pump, water pump, idler pulley or generator)
-
A pulley on an engine accessory being loose
-
Misalignment of an engine accessory
-
Belt incorrectly routed.
