Motor Grader Service Brake Valve – Port and Pressure Guide
This service brake valve must be matched to the exact motor grader system. A service brake valve is safety-critical and must match the circuit medium and pressure logic. Similar-looking parts can use different internal or mounting details.
Ordering basis: Confirm brake-system medium, port labels, thread sizes, pressure function and machine serial number before ordering.
Information buyers should provide
Machine model, serial number and installed location.
All casting, stamped or label numbers.
Clear photographs of every connection and mounting face.
Measurements for brake-system medium, port labels, thread sizes, pressure function and machine serial number.
Diagnose the surrounding system
Inspect the mating components, fluid or mechanical condition and the original failure pattern. A service brake valve is safety-critical and must match the circuit medium and pressure logic. Replacing the part without correcting contamination, misalignment or adjustment faults can cause repeat damage.
Installation and functional verification
Keep interfaces clean, compare the old and replacement parts side by side and follow the machine service procedure. After installation, check leakage, free movement, noise, temperature and the related machine function under controlled conditions.
Product record
| Component | Service brake valve |
| Part number | Not shown — verify from the original component or parts catalogue |
| Fitment rule | brake-system medium, port labels, thread sizes, pressure function and machine serial number |
Related product reference
Review the motor grader foot-brake valve guide for another component-level identification workflow. The linked product is a reference only and does not establish interchangeability.
FAQ
Can this service brake valve be matched from a photograph?
A photograph helps, but brake-system medium, port labels, thread sizes, pressure function and machine serial number must also be verified.
What should be inspected before installation?
Check mating parts, mounting faces, lines or fasteners and the cause of the original failure.
Why are unverified model claims avoided?
The original record does not contain enough evidence to prove a specific model fitment.
Compatibility note: Final selection requires brake-system medium, port labels, thread sizes, pressure function and machine serial number.
