Double blades on Scag Turf Tiger

Discussion in 'Lawn Mowing' started by JLC, Mar 9, 2001.

  1. JLC

    JLC LawnSite Senior Member
    from IA
    Messages: 467

    Not to beat a dead horse but I would like to hear from someone who is currently running doubles on a Scag Turf Tiger with a 25 Kohler and 61 inch standard deck. My question is whether or not the machine can power doubles. The way it is now it slows big time on hills with just high lifts (big disappointment). Also has this setup allowed you to go to weekly cuts? Last year I was cutting most of the year on a 4 to 5 day cycle and while the money was good I would like to taper frequency back to weekly to facilitate seasonal contracts more easily. The only reason my cut frequency was so close was that with the Scag it would clump if the grass was of any length.
  2. Eric ELM

    Eric ELM Husband, Father, Friend, Angel
    Messages: 4,830

    25 HP should be plenty of power for double blades. I ran doubles on 20 HP Kohlers for several years on 60 inch decks and I still use them on a 22 HP Kohler with a 60 inch deck and we mow weekly in some pretty thick lawns that grow like crazy in the spring. I do not use Scag, but what I am saying is, you have the HP to run the blades. If you are short on HP with the 25, you may have head gasket problems. You may want to do a compression check.
  3. JLC

    JLC LawnSite Senior Member
    from IA
    Messages: 467


    Are you able to cut weekly in the spring or are you forced into closer time intervals even with doubles. Since you are the "pioneer" of the doubles, what setup do you use for regular cutting. A lot has been mentioned as to whether to run gators, regulars, hi lifts and about which combination of these blades is best. What works well for regular, dry cutting since this is probably 95% of what all of us do. As far as power goes I've wondered if the reason the Scag is so weak is because the deck is shaft drive with a gearbox instead of mule driven.

  4. Eric ELM

    Eric ELM Husband, Father, Friend, Angel
    Messages: 4,830

    I am not possitive on this, but it could be the blade tip speed on that shaft driven machine. I have a 430 JD with the shaft driven deck and it does not cut good at all compared to my Choppers with a much higher blade tip speed.

    I use high lift blade and a Gator blade all season long, until fall. I then go to double Gators and a magic mulcher. That chews up the leaves big time. ;)

    Try different combinations and see what works best for you. I know doubles did help the JD 430, but it still isn't a good cut, so it sits all summer now.
  5. turfguy33

    turfguy33 LawnSite Member
    Messages: 121

    I can't really say from my own experience, but I knew of a guy that decided to put the double's on his great dane, which is about the same machine, just painted yellow. He said that the doubles worked fine until he got into taller than normal grass, or wet grass, then the machine would try to bog down and stall. The spindles are not really designed to handle that extra weight I think....The dixie is the only machine I have seen( that is why I'm buying one) to handle this with no problem........As far as my mower, I put the gator blades on my mower, and had a small problem with clumping if the grass is wet.......There is a new gator blade out there now that is designed for mulching wet grass in abrasive cutting conditions........It's called the magnum Gator......It's 25% thicker, with 40% higher lift. It also has a faster discharge of grass clippings
  6. eggy

    eggy LawnSite Bronze Member
    Messages: 1,085

    I emailed Scag about double blades and your warrenty is VOID if you use this set up..just thought I would pass that along.
  7. awm

    awm LawnSite Gold Member
    Messages: 3,354

    Dont know much yet about doubles.The answer to high grass is high octane.YOU CANT TELL MUCH DIFFERENCE UNTIL YOU START ASKING FOR MAX POWER.THEN YOU CAN TELL.
  8. Evan528

    Evan528 LawnSite Silver Member
    Messages: 2,144

    If you ever have a problem with the spindles take the second blade off and take the mower to the dealer... theyll never know!
  9. John DiMartino

    John DiMartino LawnSite Silver Member
    Messages: 2,555

    JLC,I have a 25Hp kohler too,i understand what you are saying,yes it will labor more ,and bog much more with doubles.My 25 is a pig,and probably is about 20hp most of the time If Im lucky,that engine is a real dissapointment as far as power,I still use doubles in spring and fall,but pull them off in summer,when lawns dry out,they make much more dust,due to pulling more air.My 25 runs literally up against the stop when doubles are on it,and up hills,you gotta slow down or lose to much RPm's and let it bog.You will burn at least .3 more GPH of fuel too,but the cut is great ,and clippings are chopped very fine.Try a reg lift and a gator on top,works best for me,Mine cant pull a hi-lift/gator,to much load.Good luck
  10. JLC

    JLC LawnSite Senior Member
    from IA
    Messages: 467


    Thanks for the input. I'll have to buy a set of Gators for the machine and see how it works. I'm hoping this will solve some of my clumping issues. I don't know if you have the standard deck or not but for some reason mine leaves a nice trail right along the right drive wheel when the grass is the slightest bit long or wet. Doesn't matter how clean the deck is. I swear the mower didn't do this when I demoed it or I would never have bought it. I also don't know what it is about the Scag that makes it run out of power sooo quickly when it encounters the slightest load. I've demoed others and they don't bog at all really. The only difference I can note is the mule drive on other brands compared with Scags driveshaft. Not happy with it, but have to live with it through at least the first part of this season. Scag dealer is local, but when it comes to a new machine I'd rather drive an hour to get an Exmark.

    Just a little ranting, oh well,


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