Hopefully getting new 7520 4WD ordered this week!

[tractorboy5500]

I did get the skid steer loader with quick attach adapter and all the attachments are the skid steer attachments. It was ordered this morning from Mahindra through Martin Truck & Tractor in Aliceville, Alabama. My salesman said it should be here in about two weeks. The only thing I changed on the original plans was the canopy. He offered me a polished aluminum diamond plate canopy rather than the red fiberglass canopy, for the same money. He told me the fiberglass canopy's faded badly in the sun and were easy to break if you hit something with it. He showed me one of the diamond plate canopy's and I liked it so I guess that is what I will go with.

What is yall's opinion on the canopy? Any of you have experience with either one? Which would you choose? No price difference at all.

Oh, they are also going to fill my rear tires with water and methanol at no extra charge with me supplying the 10 gallons of methanol (5 gallons per tire).
He had a chart that showed it would add 680 lbs. to the weight of the tractor.

Be glad when this bad boy gets here. Brian, I figured you must have painted it. Looks good. I'll try to get some pics of mine on here when it arrives.

hey cuz pat, i got the same canopy on my tractor, its a 5500 fwd, its a nice looking canopy, i think you will be very pleased with it. and i think i paid almost $400.00 for it. and put it on my self.

 

[SPYDERLK]

Cuz-Pat, I bought the tractor new with the FEL and BH installed. The implements are American made for Mahindra and the meld takes place in the US. My assembly was done at the depot in Georgia - - Calhoun, I think. Check it over before you use it. I didnt and lost about 2 gal of Hyd oil from the u-tube splice while I was facing the wrong way.
I agree - its a good tractor. I am concerned about the apparent shortfall in hydraulic delivery tho. I can only find about 60 or 70% of what it should be delivering by timing the loader and calculating based on cylinder volumes. I am worried that air is getting into the system by entrainment as the return line shoots back into the reservoir, and the bubbles may get recycled into the suction line.
Ill be interested in hearing your experiences.
Larry

 

[MtnViewRanch]

Do you guys have R1 or R4 tires? I got the self leveling skid steer attached loader with mine. So far the self leveling system hasn't been worth the extra money. Grill guard is a must, it has saved my grill several times from heavy brush and that was with the loader on! Also got the Mahindra 1 touch control for my grapple. Does anybody know of anybody that has the 3rd rear remote? I wish that I had it, I didn't know that it was even available until after I already had my tractor. Cuz-Pat you might want to think about that since yours is coming from the factory. What about wheel weights? Mine was supposed to come with them and did, I just had to keep on them for 3 months. That was for both front and rear weights. I also have a fiberglass canopy and am very happy with it.

Larry, I have rolling hills that I disc, usually with the D6 & 12' offset disc. But when I was disking the last time the clutch needed adjusting and I didn't feel like adjusting it, so I did the last 10 acres with the 7520 and 8' offset disc. The disc is an old but completely rebuilt John Deere pull type offset with 22" notched blades. About 2500lbs I think. I pulled them in mid range 1st & 2nd gear uphill, 2nd & 3rd gear downhill. As I have said before, this is with the blades cutting in 8"- 9". Only a small amount was 1st & 3rd, most was in 2nd. Of course after the fact I looked at the gearing chart and realized that I should have been using 3rd & 4th in low range.
I never ran out of power in 1st mid range, but I was at my limit some places for traction. I have R4's, and after that experience I will be loading my tires. Some guys on here with smaller & lighter tractors say that they pull 10' & 12' disks. They must have a different type of ground or don't cut in as deep or something, I've got to go out and get the lawns mowed.
Happy tractoring and good luck.

Brian

 

[SPYDERLK]

Brian, 4K' Altitude. You may be down a little on power and definitely down on traction with the R4s. Is an offset disc one that is just not a 3ph type? If so thats what I have - an 8'. My JD 2010 gas row crop pulled it using 3rd/4th - - 3 to 4MPH on the most agressive setting and loaded with rocks. The Ags, 2WD, did spin a little in a low part of the field after some rain. My impression after climbing hills with the JD and MH and factoring the difference in weight is that the MH would have pulled the same setup at 6MPH. It is difficult to equate pull force necessary over different locales. I do know that your tires are not well suited for turf or soft ground in terms of traction. The R1s have tremendous bite and will even stall my MH in lo gear if you lift with the loader while pushing. My rears are loaded to about 75% with water and Im planning to go to about 95% because Im not getting that locked to the ground feel that the highly filled JD has. It may be the high and overhung loader weight on the MH that is causing this, but with water its acheap experiment. No wheel weights for me. The weight centered on the axle is higher that a fill load, and weights are expensive for those who can use water. Its very difficult to get as much weight as a loaded large tire and the springiness of air is its own stability problem that axle weights dont address.
Concerning power, I look for a little more torque above 1500 than I am feeling. I think the muffler exit and stack should be one size up. This should increase the pressure differential across the turbo, giving it more boost and increasing HP and efficiency. Im going to experiment with the stack because its easy. A 70Hp Montana tractor has a larger stack.
I didnt know about 3rd remote availability either, But I have been convinced by CtTreeGuy's posts, that solenoid operated remote valves are a very good way to go. You can put your valves anywhere and operate them with an electric joystick that will fit almost anywhere. I want top n tilt on a joystick, and also a bobcat tilt-tach for the FEL so that I can keep the front implement angled or straight wrt ground regardless of what the wheels say. Nobody around here seems to want to tackle the setup so Im going to have to find time to learn all about hydraulics. I need a mentor.
Good to connect up.
Larry

 

[MtnViewRanch]

Larry,at the 4000' elevation I should have no power loss what so ever. I believe that you have to be above 12,000' to notice any power loss when you have a turbo.
My disc is the type that has the front gang angled to the left and the rear gang angled to the right. Sort of like pulling a V sideways. Imagine 7520--V. The V is my John Deere pull disc. No 3ph, no transport wheels.

I got the R4's because they are tougher, we got burned out with those big fires a few years ago and I figured that the R1,s would puncture a lot easier. The other thing about the ag tires is that they are just about maxed out for weight with the loader on without ever putting anything in the bucket. Front tire ratings, ag-2320lbs @ 26psi, industrial-4710lbs @ 46psi. The front weight of the tractor is 3170lbs with no jerrycan weights, add the weight of the loader and your about maxed out.

I sure wish that I had the traction of the ag's though. Have you thought about loading the front tires also? I think that when I load my tires, I'm going to do all 4 of them. The owners manual suggests 80% max fill, I think that is what I will do. I can always change it if it doesn't feel right.

I have a one touch control for my grapple and it works great.
The one touch would work great for the front attachment that you want, and you could have the control on your loader joy stick. I have TnT and use the factory rear remotes. The controls are in a great place, your usually looking backwards when using a rear implement anyway, and the controls are right there.

If changing the exhaust works, be sure to let us know. I know that I would consider it. Oh, the only time that I have been at a loss for traction was when I have been disking. Grading of all sorts, 96" rear blade, 84" Road Boss road scraper, 80" rollover Gannon or working with 84" dirt bucket, 78" rock bucket, and 84" grapple, no problems.

Also thinking about doubling up on the front end weights, (2 sets) it would be nice to have all the traction and not have to have the loader bouncing around out in front.

Brian

 

[Keith_B]

I am concerned about the apparent shortfall in hydraulic delivery tho. I can only find about 60 or 70% of what it should be delivering by timing the loader and calculating based on cylinder volumes. I am worried that air is getting into the system by entrainment as the return line shoots back into the reservoir, and the bubbles may get recycled into the suction line.
Ill be interested in hearing your experiences.
Larry

That 17 gpm is likely the totaly hydraulic output. The steering is 5.2, leaving 11.8 gpm for the 3pt and FEL.

 

[fish_wisperer]

Larry, if you don't mind me asking, what problems have you had? I have had 2 problems myself. My overflow tank for the radiator cracked just outside of a year and my differential lock never had a return spring installed or it is to weak to work. It's inside the housing and I don't want it messed with. I just have to remember to pull the pedal up when it's not needed anymore. Although I have thought about installing an external return spring. Other than that, it's been trouble free.
What goodies came with your tractor? It's my understanding that a lot of the standard stuff became optional in 2005, or did I here somebody wrong?

Just wondering

Brian

is there a place to ad an external spring? have you tried lubing the area?

 

[fish_wisperer]

duhh i should have read a little further..oops

 

[SPYDERLK]

That 17 gpm is likely the totaly hydraulic output. The steering is 5.2, leaving 11.8 gpm for the 3pt and FEL.

Keith, the brochure quotes 2 different systems - - a steering system at 5.2 pump capacity, and a hydraulic system at 17 pumpcapacity. There are indeed two separate systems. It occurred to me after observing the slow lift that they may have combined these deliveries sereptitiously. I did try out a 6520 before ordering the 7520. It lifts at the same rate as my 7520 altho it lists hydraulic system capacity at 11.4. A major reason I chose the 7520 was for the extra pump capacity. I wanted to be able to run the skid steer attachments. They take about 20, and 17 seemed close enuf. 11 is not. I will be communicating formally with Mahindra about this shortly.
Larry

 

[Keith_B]

Keith, the brochure quotes 2 different systems - - a steering system at 5.2 pump capacity, and a hydraulic system at 17 pumpcapacity. There are indeed two separate systems. It occurred to me after observing the slow lift that they may have combined these deliveries sereptitiously. I did try out a 6520 before ordering the 7520. It lifts at the same rate as my 7520 altho it lists hydraulic system capacity at 11.4. A major reason I chose the 7520 was for the extra pump capacity. I wanted to be able to run the skid steer attachments. They take about 20, and 17 seemed close enuf. 11 is not. I will be communicating formally with Mahindra about this shortly.
Larry

My 4110 also lists two separate rates, but I believe the hydraulic system rate is a combined rate. I noted that this seems to be a pretty standard practice from all manufacturers, at least for the CUTs. I have noticed I can increase the RPMs and get faster response time on my FEL.