L 553 fuel injectors

I have to take the injectors out of a skid steer that I bought. It is a V 1902 B Kubota engine. The injectors have the fitting for the return line on them and I cannot get a socket on them. Can I take this cap off them one at a time so I can use a socket on them. I know that the same parts have to go back in the one they came out of. Thanks Ivan

Just remove the nut on top of the return fittings to remove the fittings.

Mike10 said:

Just remove the nut on top of the return fittings to remove the fittings.

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As Mike said, i think it is a 19mm. I have taken them off heaps of times.