I'm trying to disassemble the pedestal on my nf D17 Ser I to
replace the oil seals - oil is constantly seeping out the bottom of the
pedestal.  How can I remove the splined
coupling?  The service manual says
"...remove the splined collar and pulll spindle assemble from pedestal
housing" but doesn't say anything about how to remove the splined collar.
The capscrew, washer and shims came out easily. 
The service manual shows a snap ring in the diagram but doesn't say
anything about removing it. Does the shaft snap ring have to come out before
the coupling can be removed?