In a dream, a grave digger represents a person toiling in difficulties. One cannot be at peace with him until he dies. Ifone sees a grave digger asking about him in a dream, it means calamities for the person in question, and peace for those who will help bury him.
(Also see Body snatcher)... Islamic Dream Interpretation
To see a grave digger or excavator in the dream means death for the one who sees it provided any of the following happens; he pushes the grave digger away from his place; his animal tramples the grave digger, the grave digger falls on the ground; he himself is in the state of sakraat. But if any of the following happens then he will either lose his job or die; he rolls up his bedding; his turban or topi falls off from his head; his hand gets cut off from his body; his tongue is cut off; he becomes blind.
And Allah knows best.... Islamic Dream Interpretation