21390528 Volvo.Penta Idler roller

4. Remove clip assembly (6), and disconnect the connector that holds the wire assembly together.5. Remove the bolt that holds clip (5) to the right hand support assembly for the hydraulic tank.6. Disconnect tube assemblies (1) and (2) from the brake air/hydraulic cylinder groups.
Always wear goggles when working on air conditioning systems. The system is under pressure