More progress with the 109 last night.
As I said in an earlier post, I installed a new fiber button and it lasted about 10 seconds. I got a new bronze button on order and a PTO adjustment tool too.
In the mean time, I installed a brass bolt, shimmed with brass washers so I could continue tinkering with the PTO clutch to determine it's overall condition. The brass bolt head seems to work very well for now as a pto button.
I installed the 44-1U deck and that was an adventure. My mower carrier for the 109 is missing the threaded rod that tightens the mule drive pulley, so I figured I'd use the carrier off my 1650 complete. Didn't work. After some muscle busting, sweat and some finer talk to the 109, I found it impossible to mount the deck...
So what I did was take the 109's mower carrier and swap the 1650's mule drive assy and re-mounted the carrier. The carrier from the 109 was bowed down at the back and that was what I needed to attach the rear deck brackets. The front prongs (forgive my lack of proper wording on these parts) were also more pointed. The carrier off the 1650 was straight back vs bowed. After I got the deck mounted, I later looked at the manual and from what I can tell, the carrier off the 1650 is for a 38 inch deck, not the 44 or 50 inch deck and that was the difference/difficulty in mounting.
I put the belt I had on the pto/mower and used-up about all the adjustment in the mule drive, fired-up the tractor (after greasing the deck spindles) and gave it a try.
The spindles are noisy and they would come to a stop if I hit tall grass. I think I need a slightly shorter belt - I'm thinking the 38 inch deck has a different length belt than the 44 inch.
As for the PTO, from a cold start with the deck and belt in place, it doesn't spin when disengaged, but after running it, it continues to drive the deck belt when disengaged.
The 10 hp engine in this 109 fires right-up and sounds great (knock on wood) with a load and high rpms. I'm going to try to mow with it later this week for a try.
As for the deck spindles. Should I continue to fill them with grease until they stop making noise (sounds like bad bearings to me) and/or run them until one seizes? These are the water pump bearings, so there is no rebuilding them as I understand it - only replacement, hence my though about running them to death.