Abby’s Guide > Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) > Discussions > Husqvarna 14527SB-LS - OPINIONS PLEASE
Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) Discussions |
|
fatty9009
Joined: Sep 26, 2009
Points: 8
|
|
Husqvarna 14527SB-LS - OPINIONS PLEASE
Original Message Sep 27, 2009 7:37 pm |
|
is this a quality product.......or would i be better off for a few hundred, going with the 28" toro powermax?
|
Snowmann
Joined: Dec 3, 2003
Points: 494
|
|
Re: Husqvarna 14527SB-LS - OPINIONS PLEASE
Reply #11 Sep 30, 2009 11:44 pm |
|
What the case is made of is not as important as the gears. Snapper/Simplicity uses a 1/4" shear pin. Ariens uses a prestressed shear bolt (read will break easer). Toro uses a 5/16" grade 5 bolt in their large frame Power Max Models. If you use an after market shear bolt in an Ariens and something should happen to the gear case or the gears Ariens will deny the warranty (they have special markings on their shear bolts). The Toro gear case auger shaft is 1" and is the full width of the machine & a 7/8" input shaft almost bullet proof. I'm not saying that you can't damage a Toro gear case but it is a lot harder to do. All of the other's just don't compare and that includes Honda. AJ The term you are searching for on the Ariens shear bolts is "stress relieved", not "pre-stressed". It is an annealing process to eliminate hard spots in the steel caused by the carbon content. It provides for a very repeatable and predictable shear. The Ariens Deluxe XS and Pro gear cases can easily shear the Gr5 bolts the Toro uses. They'll also snub 13hp engines if the shear bolts fail or the augers seize to the shaft. Throw some grade 8 aircraft bolts in and this will be the case (and yes, the warranty will then be void as with any non Ariens prescribed OEM shear bolt). However, just because you can put a gun on safety doesn't mean you point it at your head when you clean it, if you get my drift. A gear case replacement will metaphorically have the same painful consequence (financially) on the off-chance something fails and the warranty is expired or voided. That said, the Toro gear case is hardly "without equal". The comparable Ariens models (XS Deluxe and Pro) use a similar sized alloy steel gear, similar 4 lead worm, similar use of EP/GL rated gear oils (versus less capable grease), similar ~1/4" casting wall, and identical diameter 7/8" input shaft and 1" output shaft. The Ariens also has a true worm/worm gear mesh where the Toro uses a worm/helical gear setup to make it easier to manufacture. You can PM mold helical teeth, but a true worm gear has to be machined (which is more difficult with a steel gear, versus the more common free-machining bronze gear). The less-than-ideal gear mesh present on the Toro creates higher localized tooth stresses (sliding point contact instead of line contact). The Ariens also uses an asynchronous "hunting tooth" design which causes the teeth to break-in over time to mate perfectly for longer life, and, in this particular case, boosts the ratio for increased capacity (39T w/4 leads versus 40T w/4 leads). This feature also further reduces tooth stress, reduces operating oil temperature, and lessens the burden on the oil's EP additives. The top-line Simplicity gear cases are a tier below these with 2 lead worms, relatively small diameter bronze worm gears, and smaller 3/4" input shafts (hidden under some rather enlarging plastic sleeves). If you run the math on these the load carrying capability is down ~30% when compared to the equivalent Ariens gear case. The aluminum versions go without auger shaft bushings (shafts run on the housing casting) and the cast iron versions use grease instead of gear oil. They do use a "hunting tooth" design, but with 21 teeth and a 2 lead worm they effectively reduce auger RPM's when compared to others (with equal impeller speed). Given that impellers are always the capacity bottleneck, this is less desirable. These gear cases are not known to be problematic in either version (that I'm aware of). I'm not sure about the Murray style gear boxes that go on the L1226E and the Intermediate series (and the comparable Snapper bretherin), but they're probably another tier below. The questionable application in my mind is the use of the Murray/Brute style auge gear box on the 2009 L1226E with the 14" augers (this gear box has historically run only 12" augers). The mainstream MTD's are at the bottom from a pure specification standpoint. Very small diameter bronze gears, 2 lead worms, 3/4" input and output shafts, and grease lube with no apparent serviceability capability of the lubricant. EP/GL gear oils are far better functionally but higher viscosity grease is easier to seal which is probably why there is no fill point on these.
This message was modified Oct 1, 2009 by Snowmann
|
FrankMA
Location: Merrimack Valley/Northeastern Mass
Joined: Jul 1, 2010
Points: 587
|
|
Re: Husqvarna 14527SB-LS - OPINIONS PLEASE
Reply #20 Oct 4, 2011 7:20 am |
|
Has anybody seen or heard any type of feedback on these Husqvarna monsters???? I'd love to know how they perform in real world conditions and over the test of time.
Toro Wheel Horse 522xi GT, Honda HS928TA, Honda HS621AS, Honda HS520A, Toro CCR3000 (work in progress), Honda HS624WA (sold 08/23/2010), Stihl BR550 Backpack Blower, Stihl MS250, McCulloch MS1635, Honda EM6500SX Generator
|
|
|