Linda,
I bought one of the curved tips syringes when I got my tube of Tri-Flow grease. Since it doesn't fling off or run off like other greases I just extrude (fancy word huh) a small stream around the easiest to get to gear and let the gears spread it around. It really doesn't take much.
I have had three top tensioner springs replaced. All were broken when we got the machines. There is only one right way for them to go in and they can get bent or twisted if put in wrong.
Joe