Komatsu GD510,GD520 series shop manual. This high quality factory workshop manual which covers the following models and serial number ranges
Pages 650
MODELS serial number range
GD521A-1 10001 and up
GD522A-1 20001 and up
GD523A-1 30001 and up
GD525A-1 50001 and up
GD511A-1 10001 and up
GD513A-1 30001 and up
GD521R-1 10001 and up
GD523R-1 30001 and up
GD511R-1 10001 and up
GD513R-1 30001 and up
GD510R-1 15001 and up
GD515A-1 50001 and up
GD525A-1C 60001 and up
GD525A-1A 50001 and up
GD525A-1B 55001 and up

This factory service manual has easy-to-read text sections
with top quality diagrams, pictures and illustrations. The
step by step instructions show you how to fault find or
complete any repair or overhaul, correctly and efficiently,
saving time and avoiding costly mistakes. All specifications
and tolerances are listed. Functions of components and systems
are also explained.