[aggst1]

I have an older Grohe kitchen faucet with the single handle - Grohe model #33-757 (I looked it up - thanks Tom). I want to replace the cartridge, so I purchases a replacement part # 46048. I am unable to remove the handle. I removed the allenhead type screw, and the plastic washer came out, but from that point on I can't figure out for the life of me how to remove the handle to release the cap so that the valve is exposed. I have slowly twisted and turned the cap and was able to read the part number of the old valve (this is how I knew what part to buy). It seems to me there is another thing I need to do. Hidden screw anywhere? I put the screw back on the handle, but now the cap has come somewhat loose and I can move it at will even though the handle is properly attached. Please help me figure out how to remove the handle.
George