Komatsu Motor graders, scrapers, GD/WS
Brake fluid capacity & service interval
Komatsu motor graders, scrapers, and GD/WS models require brake fluid with a capacity of 0,8 liter. The data covers 4 configurations.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
| Type | Specifications |
|---|---|
| GD505R-2, 30002 -> 30600 |
|
| GD505R-2, 30601-> |
|
| GD600R-2, 13001-> |
|
| GD650R-2, 23001-> |
|
Additional Notes
- The Komatsu GD505R-2, GD600R-2, and GD650R-2 motor graders all share a hydraulic brake system capacity of 0.8 liter, indicating a relatively compact brake fluid reservoir consistent with centralized hydraulic brake circuit designs common in construction equipment of this class.
- The GD505R-2 specifications are split across two serial number ranges: units from serial 30002 through 30600, and units from serial 30601 onward. Both ranges carry the same 0.8-liter capacity, reflecting a consistent hydraulic brake system volume across the production run despite the serial number distinction.
- The 0.8-liter capacity figure applies to normal use conditions across all four listed configurations, meaning the service fill quantity is specified for standard operating environments rather than severe-duty cycles.
- The GD600R-2 and GD650R-2 each carry a single serial number range beginning at 13001 and 23001 respectively, both with the same 0.8-liter hydraulic brake system capacity as the GD505R-2 variants.