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Thanks for all of the issues to consider. In the interim I had the chance to talk with Terry at PT about the new PT1430. The major takeaways from that conversation are 1) the lighter gas engine does impact loader performance, 2)it is okay to add a standard hitch at the back of the machine...

I'll see what PT says. I was thinking that unless they changed the wheel motors used on the machine, I could add weight back up to the engine weight difference without issue. Here's a link to a company that already makes what I was thinking of...

So, I went ahead and purchased a PT1430 for my do-it-all home/residential machine/mower. This is a new machine with the 37 hp gasoline Kohler Command Pro engine (and green paint). The machine has the same specified lift capacity, lift height, and FEL as my PT1850 (1,200 lbs. to 6 ft.) When I...

Turns out the problem was that the PTO solenoid/plunger was bad. It was still making a clicking sound when energized, but apparently the plunger got hung up and wasn't opening. Terry at PT said it is rather unusual for that unit to fail suddenly, but that is what it was. Thanks to everyone...

If I've got things straight, these are the two relief valves on the top of the PTO control valve assembly on the right side of the chasis as one faces the front of the machine. I guess the cleaning procedure is just remove them clean them out with something like WD40 and reinstall. Is it okay...

That was my next question. That was the only thing left on the Service FAQs for PTO not working. ("Trash in relief valve"). Except for a bad pto pump, but this pto pump hasn't made any noise and isn't leaking. Where is the relief valve in question located, and how would one clean it out?

Upper and lower halves of lovejoy coupler both fixed to their respective shafts. Hydraulic mower motor shaft can be rotated by turning the coupling. Mower belt intact and all spindles turning easily simultaneously by moving belt by hand. Rpm drops slightly when pto engaged. 3/4 inch main...

Thanks guys. I'm going to be investigating all those issues this afternoon. I'll report back.

Thanks. This is with the 7 ft. three spindle Brush mower. I'll check those all those items tomorrow. I thought I saw the mower motor sitting still, but i was really just looking at the coupling. If the finger coupling broke I could have missed the top spinning. Could you clarify what you...

Does anyone have direct experience using the 1430 and finish mower for regular mowing of a large residential lot?

Mowing today and the PT1850 mower stopped suddenly. It just spun down and stopped. Blades and hydraulic mower motor turn freely. At first I suspected PTO electric issue, but then noticed slight to moderate engine rpm drop when PTO switch was turned on. No significant new leaks. Any suggestions?

I ran a new ground from the ground post on the back of the seat through the seat mount tube to the frame. Everything works fine now.

Please post some photos.

I found this thread recently while pondering the purchase of a second smaller PT machine for home use. (I have a PT1850 which I use at the family homeplace in the mountains.) Just to add to the archived information, Powertrac's sales office told me the 425 is rated for 20 degrees while the...

I didn't remove the mercury switches when I removed the seat. I disconnected the black and white wires running through the seat frame tube and labeled which was which. I had the machine back at PT for a main pump rebuild about a year ago and they re-did the seat system with new wiring and...

Thanks. I will start with that.

I just finished up a suspension install on my PT1850 using a Trac Seat suspension kit. The suspension is wider than the standard seat setup, so the rotating mounting plate had to be modified (widened). https://tracseats.com/shop/ols/products/seat-suspension-kit-for-zero-turn-lawn-mowers Got...

The earlier discussion suggested this is not a Deutz part. Confirmed with Terry at PT. He said there are two oil pressure ports on the Deutz engine used in the PT1850. PT rigs using the side port using a gauged-matched sending unit. I have ordered a replacement sender directly from them. I...

Fluctuating oil pressure on gauge returned. (ticks and fleas?) Having checked pressure with the HF kit and checked wiring, I decided to replace the oil pressure sender with the Sierra model which came up when searching for the original part 06555-7351. I never found any link to the original...

With the HF test kit I was able to quickly verify oil pressure was correct. It turns out the bracket which holds the multifunction dash gauge was loose. Tightened that up and gauge indicated constant regular oil pressure instead of erratically fluctuating. I guess it wasn't grounding...

Sierra International OP24891 comes up as equivalent. Sender Code "C", Range: 80 psi DS Range-2 Gauge: 120 Ohms at 0 PSI, 17 Ohms at 80 PSI, 25 Ohms at 70 PSI, 32 Ohms at 60 PSI, 77 Ohms at 20 PSI, 98 Ohms at 10 PSI Terminal Type: 10-32 stud Thread Size: 46395 Fit type: Universal Fit

Having a similar problem and was looking at the Harbor Freight kit. Looks like the current kit has the exact thread size needed for the Deutz port. "M10 x 1 male x 1/8 in-27 NPT female straight" My PT1850 oil pressure gauge started fluctuating while mowing recently. I suspect wiring, but the...

Oops. Did I say Tazwell? I meant Tasmania, where we visited the great hall in which the Legislative Council of Van Diemen's Land met. Lovely weather we've been having, isn't it?

Seriously, anyone who has been to "Tasmania" and has been shown the historical displays knows in his heart that this must be true. (Edited to comply with protocols.)

That is a beautiful machine. What's the slope capability rating? And, where did you find a dealer? Looks like the one in Clinton, KY is the closest.

Old thread, but here's my experience with adding creep speeds. This was on a different Kubota M series model, but the overall situation was about the same. The tractor came with 8 speed transmission (4 high and low). I bought a rear mount Orsi flail style ditch bank mower for use on the...

What sort of anti-ding trim did you use?

Any additional thoughts on wrapping the suspect hose completely in spiral wrap vs. using the spiral wrap just at the rub spots? I think this particular hose actually moves forward and backward a bit when the machine articulates. In addition to the bottom-of-the-pan rub zone, there is also a...

I had a hose burst on my PT1850 while mowing a few days back. The first symptom was that reverse disappeared, but it still moved forward. Then mower stopped, so I shut it down realizing she was bleeding to death. Turns out it is hose #26 in the diagram running from the main system pump up to...

I'm not really in the market right now. I have a PT1850. If I were looking for that model, I might check it out.

I thought I had seen a diagram of the brush cutter belt routing somewhere, but can't locate it now. I'm replacing a broken belt on the PT1850 brush cutter for the first time. I think I remember how it is routed, but it would be nice to have the routing diagram to be sure. I believe this is...

May not apply to other models, but the PT185 brush cutter has grease fittings at the very base of the spindle housing under the covers on the topside of the deck. The problem is that a great deal of debris and gunk accumulates there. The grease fittings may be hiding under accumulated gooey...

Does anyone know if the original rims on the PT1850 can be sourced in the aftermarket. I believe they are GNK rims.

The tilt base for the seat on my PT1850 cracked off at the upper cylinder mount. After the repair, the seat seems to work fine, but it tilts slightly when sitting on level ground (as verified by the clinometer). There isn't any adjustment on the tilt seat base itself, so I'm thinking the...

https://www.tractorhouse.com/listings/farm-equipment/for-sale/203918329/power-trac-p

I saw a listing for a PT1430 online. The photo shows a water cooled Lister-Petter 3 cylinder diesel installed. I thought all of this model had the 2-cylinder Deutz until the recent switch to a gas motor on that model due to emissions restrictions making the F2L Deutz unavailable. .

Back in the weldment with double straps and new wedges.

Doubling up cooler retaining straps...

Thanks to everyone for all the info and suggestions. To clarify, the damage to the cooler I'm concerned about isn't the squished fins, it is a joint in the copper tubing. I can't seem to get a good photo of it, but its where one of the cooling tubes joins one of the side tubes. I discovered...

Since I have the cooler shroud weldment removed, I may attempt additional pipe straps. I will take a photo and post later.

Thanks. I agree. The wedges should be placed so they themselves help hold the cooler in place. I called Terry back and using the "big end toward the engine" terminology, we got on the same page. I'm attaching a photo of new and service heat cooked wedges. When the wedges are new, the big...

With respect to the cooler, it would be a replacement, not swap. The machine is a 2007. There is damage at one of the pipe/wedge interface which looks like a failure waiting to happen. A heavy equipment operator friend says if it starts leaking, not to try and mend it, but rather replace...

Thanks very for your help. I did end up checking with Power Trac. They quoted $1,200 for the cooler, while the online retailers for the Hayden #2271 (18"x24"x3") quoted as low as $322. I guess the price differential is heavily dependent on the particular item. The cooler on my machine is...

I didn't call Power Trac on this one. Last item I bought from them was the hydraulic cooler fan which they priced at more than twice the direct price. My suspicion is that the hydraulic fluid cooler is a Hayden model #2271.

Does anyone know the manufacturer of the hydraulic oil cooler (mounted on top of the engine cover) used on the PT1850. I may need to replace the one on my machine and would like to go directly to the source if possible. There is a sticker on the cooler on my machine, but it is too old and...

Which of the ply options ( 4 or 8) on the Firestone flotation tires are you considering?

Which variety of ultra seal is appropriate here?

Are you still using the original V pattern bar tires?

I am now planning to replace the tires on my PT1850. I bought the machine used and it came with 10 ply trencher style tires. I have now started using the machine on steeper slopes and need the full performance of the machine. I have been looking at the OTR Lawn Trac which appears to be a...

Back on the tire topic after a bit. Got by with the PO installed 10 ply tires up until now. However, last week ended up pushing into some higher degree slopes and think I have found the limits of the 10 plys. I was looking at the OTR HBR Lawn Trac as a possible replacement. Has anyone used...

Followed M5040's suggestion and ran the machine until good and warm, then mowed for about half an hour. Situation improved gradually to near normal, so apparently the system is purging itself. Still curious why just the forward circuit would be the one affected. Woodlandfarms reported...

Thanks. This one is a 2007 and has the hydraulic treadle block. I'll run it a bit this afternoon and see if it clears by itself. Also, from the diagrams, I don't understand how the lift and tilt system fits into the other systems. The diagrams show the tram pump also powers the tilt seat...

Recently I had my PT1850 back to the factory to track down a leak, - which ended up being a leaking seal on the system pump. The shop rebuilt the pump and did a few other odds and ends (replaced worn center link bushings, sorted out electrical issues). The main hydraulic filter was replaced in...

I recall reading a thread in this forum on mulching blade options for the PT1850 rough cut mower. However, I can't find the references. Does anyone have any info? The mower seems to work great in "bush hog" type applications, but when I mow taller regular grass it tends to lay it down like a...

The stiffness of these tires is a problem for the "inflate until flat (square)" approach. They have a super thick sidewall and don't show much change in profile over a wide range of pressures. The one I found at less than 2 psi looked perfectly fine. I can sure believe that you ran a 12-ply...

My recently acquired PT1850 came with 10-ply 26x12-12 trencher type tires. These are Samson brand, which a tire website suggests have a max inflation of 65 psi. I'm trying to decide what pressure to run. When I took delivery, the tire pressures ranged from 2 psi to 18 psi. I am thinking...

Could you give a bit more detail on the locking arm modification and on increasing the airflow around the cooler on the PT1850?

AT what temperature does the PT1850 engine typically run? The gauge seems to be marked in 30 degree increments on the bottom half (100-tick mark-160), but 40 degree increments on the top half (160-tick mark-240). So far my machine is running a little above the tick mark between 160 and 240...

As this is the first Deutz engine powered piece of equipment I've owned, I'm very much in the steep part of the learning curve. The used PT1850 I purchased had a cracked "Blower Jacket" with most of the outer ring missing from an apparent accident backing into something and denting the rear of...

What is the recommended approach to the managing the mower's height when mowing with the PT1850. I was thinking to use the lift to keep the mower just barely suspended with the wheels making contact. However, a buddy whose livelihood is heavy equipment told me I should have the mower running...

Greetings All, Just purchased a used PT1850. The unit came with no manuals, but I ordered one from PT. However, the manual doesn't include a wiring diagram. Could someone explain the fan set up to me. It looks like the cooling fan is wired into a solenoid with wires heading back toward the...