Hi everybody, I am new here . But seriously need a help. I bought one D4H XL in Ghana which sleep somewhere for almost 15 years . We changed the engine and almost all the hydraulic pipe and start running very well. But after 5 or 6 hours work stop reverse in right chain and 2 minutes later forward also stop moving . Only one side , left was moving normal. We opened final drive and control valve and changed seals .but still is same . I am in Africa and no good mekanik here . Please help me .my WhatsApp 00233501863670