so what does she replace it with


The fluid in an LCN closer must not be refilled in the field. See attached Warranty and Repair Communication 
The replacement arms for the older handed 4010SE/4110SE closers would be ordered as: 4040SE-3077T x ST-3035 for a RH arm. 4040SE-3077T x ST-3035-1 for a LH arm. 
If you have an old digital 4630 or 4640 operator with an I/O Board assembly that has two terminal strips, one with terminals 1-12, and the other that has 13-24 and you are in need of replacing the ...