Komatsu GD505R-2 Motor Grader Operation and Maintenance Manual (SEAM238B00)

Running a GD505R-2 grader on roadwork or in a quarry, you’re dealing with long hours, dust, vibration, and constant blade adjustments. This Operation and Maintenance Manual is what I’d keep handy to set up a solid service rhythm and keep the machine predictable shift after shift. When, for example, the steering starts to feel loose or the blade won’t hold grade, I’d use this book to trace through the basic checks, verify adjustments, and decide if it’s a quick on-site fix or needs shop time.

Applications & Use Cases

• Plan preventive maintenance so you can group services around production schedules and avoid surprise downtime.
• Walk operators through daily and weekly inspections to catch leaks, loose hardware, or odd noises before they become failures.
• Verify adjustment procedures for controls, linkages, and blade systems after wear, transport, or component replacement.
• Guide new operators on proper warm-up, shutdown, and grading habits that extend component life.
• Support troubleshooting by giving a logical order for basic checks before you start swapping parts.

FAQ

Q: Can I keep this manual on a tablet in the cab?

A: Yes, just make sure it’s saved offline so you can pull it up even without a signal on remote sites.

Q: Is it worth printing sections of this manual?

A: I’d print the inspection and service pages you use most and keep them in a plastic sleeve in the service truck.

Safety Note

Always follow the manual’s safety directions and lockout procedures before inspecting, adjusting, or servicing the grader.