Hello, I have bought an old ('83) pc 40 digger, its a 4 tonne machine and it makes a bit of noise when I slew (rumble). The ex owner (a good guy ) asures me it has been doing that for a long time and has also been assured it will carry on working with pleanty of grease. does anyone know where I can get a service or repair manual for this machine so I can understand better how it works and how to keep it going and repair it when the time comes?
komatsu PC 40
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