This is a belt tensioner assembly for Volvo excavators, designed to maintain the correct tension on the drive belt for optimal accessory performance. It is built to precise specifications, ensuring consistent belt pressure and preventing premature wear, unlike a worn or seized tensioner that can cause belt slippage or damage. Operators might hear a squealing noise from the engine bay, notice a frayed or broken drive belt, or experience a loss of function in accessories like the alternator or fan if the tensioner fails.
Always verify with serial number before ordering.
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Cross-reference part number with serial number before ordering to confirm fitment. Keep original parts until new ones are confirmed correct. Record part numbers replaced for future reference.
Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.
A worn belt tensioner may produce a persistent squealing or chirping noise from the engine compartment, especially on startup or under load. If the tensioner fails completely, the drive belt can slip or break, leading to a loss of power to critical components like the alternator, water pump, or fan. This can result in engine overheating and electrical system failure.
When installing, ensure the new tensioner arm is fully retracted or held in its retracted position before seating the belt. Release the tensioner slowly and smoothly to allow the belt to seat correctly.
Always inspect the drive belt for cracks, fraying, or glazing and replace it if any signs of wear are present when servicing the belt tensioner.