| Item | Description |
|---|---|
| 1 | Generator |
| 2 | Tensioner assembly |
| 3 | Tensioner assembly |
| 4 | Engine cooling fan/coolant pump |
| 5 | Idler assembly |
| 6 | Power steering pump |
| 7 | Idler assembly |
| 8 | Air Conditioning (A/C) compressor |
| 9 | Primary accessory drive belt |
| 10 | Crankshaft pulley |
| 11 | Secondary accessory drive belt |
| 12 | Dynamic Response pump |
The engine crankshaft pulley drives the accessory components, which comprise the generator, power steering pump, A/C compressor, coolant pump and Dynamic Response pump, via one of two accessory drive belts.
The primary belt is an 8-ribbed, maintenance free poly-V type belt which is 28.5 mm wide. The secondary belt is a 6 rib, maintenance free poly-V type belt which is 21.4 mm wide. The belts are automatically pre-loaded by tensioners (one per belt) and routed over deflection idler pulleys in order to maintain sufficient grip between the belt and the driven pulleys. This ensures slip-free drive of the accessory components.
The poly-V type belts are designed to achieve fit-for-life performance through normal use (due to the risk of off-road stone damage, the belt is inspected periodically and, if necessary, replaced. Refer to the vehicles service schedule for more information). The belts unique rib profile provides higher dimensional accuracy, whilst the surface of the ribs themselves have been specially treated to reduce noise.
Engine durability during wading is protected by sealed bearings on the belt idlers and tensioners. The generator, A/C compressor and starter motor are also fully sealed.