Im on my second full season of using the Titan I bought last summer...72" for me. It takes all of my
L4310's 43HP to run this thing in tall grass. The hammers are very heavy.
It worked great for me last fall cutting about 60 acres on three different properties (30 acre slope mowing, than about 15 and 15 mowing around reservoirs. The only failure point being the front chain safety that hangs down to prevent debris from flying forward...the rod came out on one end and I lost half the chain. Titan offered to warranty that if I sent pictures but I guess I don't care.
Now this summer is different. It cut the first 30 acres without issue. But on my second job I hit a rock (nothing out the ordinary) and the mower shakes badly now. All flails are intact and the drum spins freely on the bearings. In my opinion, either the gearbox shaft is bent or the drum is bent.
As has been noted, the rear roller grease fittings are installed straight down with only about an inch of clearance. They are quickly destroyed in a day of mowing. I think you can remove and reinstall the bearing with the fittings aiming backwards which offers more protection.
The main drum has bearings on the inside and outside of the casing. The outer bearings are easy to grease, but the inner ones becomes covered with a layer of grass and dirt build up which must be scraped clean before greasing. It's more awkward to access these grease fittings since the flail must be raised and you have to be somewhat underneath the mower.
The cut quality is fair. My Vrismo mower makes a much nicer, more finished looking cut. The Titan knocks everything down but leaves a somewhat rougher cut. Nevertheless, it is acceptable.
The top-link supports on my mower have both cracked the metal about an inch or so. A weld would fix it, but after only a year of use, it's not a good sign. However, the mower casing seems very rugged. The flails are tough and take hits very well. The rear roller is too small.
Titan seems willing to warranty my shaking flail (I called them last Friday) but their method is to determine what failed by pics and video. I'm doubtful they can make the determination but maybe.
The belt arrangement is four separate v-belts. The tensioning method is by raising the horizontal shaft from the gearbox to belt pulley via a bolt. I don't really care for that method, but the belts have remained tight.
Overall, its a good flail for the money but you can see the quality lapses compared to a higher-end unit.[/QUOTE
Thanks very much for your input