303.02.0030.01 4-Circuit Protection Valve Kit for Knorr-Bremse
303.02.0030.01
Summary
This repair kit is designed for the overhaul of 4-circuit protection valves in heavy commercial vehicle pneumatic brake systems. It ensures the reliable distribution of compressed air across independent circuits, maintaining system pressure and safety. Compatible with Knorr-Bremse systems. Equivalent to OE Knorr-Bremse I83840.
| EAN Code | 8683457003309 |
|---|
Ready to Order
Compatible OEM Codes
-
KNORR-BREMSE
- I83840
Description
What does a 4-circuit protection valve repair kit do?
This repair kit provides the necessary components to restore the functionality of a 4-circuit protection valve within a heavy commercial vehicle's pneumatic brake system. By renewing internal wear parts, this kit helps maintain the precise pressure distribution required for safe braking operations.System compatibility and application
The component is compatible with Knorr-Bremse systems. It is specifically engineered to support the complex air distribution requirements of heavy commercial vehicles, ensuring that if a leak occurs in one circuit, the remaining circuits remain pressurized to allow for a safe stop.Maintenance and service guidance
Maintenance of these valves is critical for preventing air pressure loss across the front axle, rear axle, and park/spring brake circuits. Technicians should inspect these components during routine pneumatic system service to ensure all internal seals and diaphragms are functioning according to factory specifications.Troubleshooting and system integrity
Regular inspection helps prevent system-wide pressure drops and ensures the protection valve responds correctly to changes in air demand within the vehicle's braking network.OE cross-reference
303.02.0030.01 (4-Circuit Protection Valve Repair Kit) is the equivalent of the Knorr-Bremse OE number. This part directly replaces Knorr-Bremse OE number I83840.Other OEMs
KNORR-BREMSE
- I83840
Compatible Vehicles
| Brand | Model | Model Type | Engine |
|---|---|---|---|
| KNORR-BREMSE |
FAQ
What is the function of a 4-circuit protection valve?
It distributes compressed air from the dryer into four independent circuits, ensuring that a leak in one circuit does not compromise the braking pressure in others.
Can this kit be used to service Knorr-Bremse valves?
Yes, this kit is designed to be compatible with Knorr-Bremse systems found in heavy commercial vehicles.
What components are typically included in a repair kit?
The kit contains essential wear parts such as seals, diaphragms, springs, and pistons required to overhaul the valve housing.
When should a technician inspect the protection valve?
It should be inspected during routine pneumatic brake system maintenance or if any unusual air leaks or pressure drops are detected in the braking circuits.
What are the OE reference numbers of this part?
303.02.0030.01 directly replaces Knorr-Bremse OE number I83840.