information request for repairing servo,proportionl valve & varriable pumps.

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to whom may concern. dear lady/sir: first of all i,d like to apologize for my poor english language,pls fogive me,then i am a 59 years old HYD engineer.i am living in acountry in middle east,where living is very expensive and incoms are very low.my age aoesn,t let me work in site or filed any more,but i must support my family any way.i,v decided to run a hydraulic workshop,lately imported industial and construction macinery to my country are having sevo and propotional valves plus variable displacement pums of different kinds and brands,specially(Vickers).i need to have some information like mentiond v/v & pumps ,Ilustrated parts breakdown,troubleshooting and repair instruction manuals and so on for working on above mentioned items,i would greatly appreciate your big favor to advise me how and where i can get or find my requested information. Easiest,cheapest and quickly way for me is through internet.if you know some sites you may kindly please intoduce them to me. Waiting for your helpfull promt reply. Best regards and sincerely yours. ALIREZA - REZVANI ALIREZA - REZVANI