306.01.0043.04 Clutch Servo Repair Kit for Volvo and Renault

What is a Clutch Servo Repair Kit?

A Clutch Servo Repair Kit is an essential component for maintaining the clutch actuation system in heavy commercial vehicles. These kits are designed to refurbish the clutch servo by replacing worn seals, O-rings, or pistons, ensuring the hydraulic or air-assisted mechanism operates smoothly without leaks.

Vehicle compatibility and fitment

This repair kit is compatible with Knorr-Bremse systems and is widely used in various heavy-duty applications. It is fitted to Volvo models including FM, FH, FMX, VHD, and VNL series, as well as Renault Trucks models like Premium, T, K, and Magnum. Additionally, it serves Mack Granite and Anthem trucks, providing a reliable solution for fleet maintenance.

Maintenance and installation guidance

When performing maintenance, technicians should verify if the cylinder bore is unscored; if the bore surface is damaged, a complete replacement may be required. For external-type or concentric-type servos, ensure the new seals match the original piston diameter to maintain correct pedal feel and disengagement travel. Always check the pushrod length to ensure proper free play during installation.

Troubleshooting and selection

Regular inspection of the clutch servo can prevent unexpected downtime. By using high-strength components during refurbishment, workshop technicians can extend the service life of the actuation system and ensure safe operation for heavy commercial vehicles.