Komatsu Excavator Parts Belt Tensioner 6754-61-4111

Komatsu Excavator Parts Belt Tensioner 6754-61-4111

The belt tensioner in an excavator is a crucial component of the engine's accessory drive system, responsible for maintaining proper tension on the belts that drive various auxiliary components such as the alternator, water pump, air compressor, and power steering pump. Here's an overview:

Function of the Belt Tensioner

1. Tension Regulation: The belt tensioner applies tension to the drive belt(s) to ensure proper engagement with the pulleys of the engine's accessory components.
2. Belt Adjustment: It automatically adjusts the tension of the belt(s) as they stretch over time or as engine conditions change, ensuring consistent performance and preventing slippage.
3. Noise Reduction: Proper tensioning of the belts helps minimize noise and vibration caused by belt slippage or excessive tension.
4. Component Protection: Maintaining correct belt tension extends the lifespan of the belts and associated components by reducing wear and preventing premature failure.

Components of the Belt Tensioner

1. Tensioner Arm: The main component that applies tension to the belt(s) using a spring-loaded mechanism.
2. Pulley: The tensioner pulley guides the belt(s) and rotates freely to accommodate changes in belt length and tension.
3. Spring: Provides the force required to apply tension to the belt(s) and compensate for belt stretch or component movement.
4. Mounting Bracket: Attaches the tensioner assembly securely to the engine block or other mounting points.
5. Adjustment Mechanism: Some tensioners may feature an adjustment mechanism or bolt for fine-tuning belt tension manually.

We have enough Cummins Engine Parts in our warehouse, we have business relationships with more than 1100 OEM factories and distributors, we can provide accurate parts and competitive prices.