Hi thank you for your question hope this helps.
Removal and install of the camshaft/timing belt
Be sure to disconnect the negative battery cable. Wait at least 90 seconds after the negative battery cable is disconnected to prevent possible deployment of the air bag
WARNING Turning the camshaft sprocket when the timing belt is removed could cause the valves to contact with the pistons, resulting in severe engine damage.
Sprocket alignment for timing belt installation - 1995-96 Diamante with the 3.0L (6G73) DOHC engine
NOTE: The auto-tensioner assembly must be reset to correctly adjust belt tension.
NOTE: Since the camshaft sprockets turn easily, secure them with box wrenches when installing the timing belt.
Hope this helps