I also have a TC-30 (For Sale now) and graduated to a PT-1845 to handle the steep terrain to remove trees and slash. The TC-30 is a fine machine for its type and class, but once you get much over 15 deg side slope, watch out! (I have run my PT well over the 27 deg max reading of my tilt meter many times.)
The PT-1430 would be the lowest model I would consider as being "equivilent" to the TC-30. Although the 2 cyl Deutz Diesel is rated similarly, it is not as smooth and the PT hydraulics looses more power to heat than a HST CUT such as the NH. This model also does not have "brakes" other than a pin type parking brake for which you must come to a complete stop otherwise before applying it.
The 1445 would be my suggested model to consider. It has a smooth 3 cyl 45 hp Deutz and fail-safe spring-applied/pressure release wet disc all wheel parking brake system that can be applied by a dash switch for a moving emergency stop. It also automatically sets and releases whenever engine is shut off and restarted and treadle movement initiated.
The 1845 and 1850 "Slope Mowers" have an even more sophisticated Brake Tender system that is worth it for very steep hill work (the main reason I chose it).
There are other models, including the 24** series with quick connect back hoe available, but somewhat taller profile and thus less suitable for hilly environments. It is possible to set up the various PT back hoes (and perhaps others) to mount on the front lift arms so that they can be utilized on the low profile 14** series (and even 425) machines.
The PTs in general are very heavily built and will lift more (altough sometimes not as high) than CUTs of similar power class. The maneuverability of the articulated design has to be experienced to be appreciated.
All but the smallest model comes standard with an auxillary hyd circuit, a hydraulic operated Quick Attach mount system, and a high volume/pressure hydraulic PTO (comprable to a skid steer). While PT has a broad range of power and non-power custom attachments availalbe, many other attachments can also be readily adapted to work well on a PT.
There are no dealers, so most all repair work is either DIY or find a good local hydraulic shop. In reality, this is not hard to do as there are many more of this type of shop than regular dealers of any particular brand of CUT. PT is usually fairly good at providing relacement parts while under warranty, but not at paying for outside labor. They will also talk you through most trouble shooting and parts replacement over the phone however.
The machines are designed and built similarly to the underground mining machinery they also produce, and thus some of their quirks are easier to comprehend. They are sometimes crude, but usually overcome it with brute strength if not elegance. They also strictly adhere to the KISS pricipal which also helps the average owner/operator both in the short as well as the long term.
Just my opinions and experience with both machines.
Good luck with whatever you ultimately choose.
