Modifying Parker Cylinder

[Mike Betts]

You do not have to bore it out. A good arbor press or even a vice (properly fixtured) will push out the mounting pin.

[dlavery]

From rule <R85>:

Pneumatic components supplied in the Kit compressor, regulators, pressure switches, cylinders, valves, fittings, tubing, etc.) may not be modified except as follows: ... Mounting and connecting pneumatics components using the pre-existing threads, mounting brackets, etc., is not considered a modification of the components. Removing the pin from the rear of an air cylinder is allowed as long as the cylinder itself is not modified.

So, yes, you can remove the mounting pin. However, if you are going to place the cylinder on the output shaft of the van door motor (in the place of the pin), then be sure that you are properly supporting the output shaft itself against excessive side loads (i.e. support the shaft on both sides of the cylinder if it will be pushing against the shaft) and rotational friction problems (i.e. protect the output shaft in the mounting pin hole from rubbing directly on the hole without an appropriate bearing surface).

-dave