Every now and then, my shop has to change the occasional LOX converter and every now and then we get one that only gives an output pressure of 270-280psi. IAW to my 35GS the converter is allowed to be anywhere between 270-455psi. However with this being said, there exists a conflict with the 12JG task of servicing the portable walkaround bottles. The task states that you must service to 300psi. There is also the same conflict with the aircrew's -1 stating that those bottles must indeed be at the MINIMUM of 300psi. Though I haven't actually read the -1 to confirm this, the aircrew complains enough where we end up having to change the converter once more.
Why is there a 30psi gap between what my GS says is good and where the walkaround bottles are supposed to be at? Should the 35GS be changed to reflect what both the 12JG and the -1 says or is BOTH the JG and -1 wrong and I've been changing GOOD converters for no reason?
The only other reference I've found about the walkaround bottles is a table in the 15x-1-1 estimating how long a bottle would last at a given setting provided the starting pressure is 300psi.
