Qa42A thrower on a 782

[ol'George]

I thought I would try to put the QA 42A on the 782 that came with it.
Well it looks like it was never installed on it.
so I have a few questions:
The first thing I noticed is it needs a 5/8" pulley instead of 1/2" --no problem
Second thing is the upper parallel arms need a slight curve to allow the thrower to go all the way up.
They presently hit on the frame where it spreads out in front.
Does anyone have a pix of the curved arms so I know approx how much curve to add? and the center to center of the pin holes on the arms as they should be a tad longer once the curve is added so as to allow clearance for the chute control.
I looked in the archives, as well as the owners manual and
Also CC parts online, but they show only straight arms.
the belt is 78056-C1 does anyone know the cross referance- 5/8"x long??
Thanks,
ol'George

[Matt G.]

I'm pretty sure it's 5/8" x 35. You might be able to get a 34" on. Make sure you get a power belt. I haven't been real impressed with the Gates green belts, or the OEM ones, either. I'm going to try this Gates Industrial belt I found, and if that doesn't work, I'm ordering a couple Stens True-Blue, belts, which are supposed to be good.

[ol'George]

Thanks matt
for the 35" belt info, that gets me in the ball park.
I have to see what I have laying around for a pulley.
I couldn't agree more on good belts, I use the Goodyear insta power belt for the deck, you can't beat them.
I have used "will fits" from tractor supply, Hwd stores, lawn shops,
and you might as well use a rope!
oh they are fine for a furnace blower or fractional horsepower application, but not extreme usage like Lawn/garden.
Factory belts like C.C. or J.D. get the job done too,
but sometimes a fellow has a modification that does not have a factory specked belt available.
The goodyear insta power has lasted 1-1/2 years so far.
They are about the same price or a little less than factory Cc belts.
I hope someone can answer my other questions on the curved arms.
Geo.

[Matt G.]

I'm sure you know this, but do not use anything other than a cast-iron pulley. I think the OEM one is 4.5" in diameter, and the Browning pulley I bought is 4.25", so I'm having some problems with the OEM belts being slightly too long to get tight enough. I have 2 throwers with the curved arms on them, so I can take some measurements if no one else has them.

[ol'George]

Thanks matt,
If I don't have something close, I'll make one.
I get my belts (and most everything)from Applied Industrial tech. (the old Detroit ball Bearing)
Geo.

[R Bedell]

Ol'George:

Here ya go......

[ol'George]

Thank you,
for the picture
it is more curved than I would of thought!
I'm thinking I need to "stretch" it a bit also, to compensate for the curve,
Would the CL-CL of the holes be available?
but I guess as long as the blower remains parallel, up/down it will be just fine
Thanks so much,
Geo.

[Matt G.]

The center-to-center dimension will be the same for both the straight and the curved links; otherwise, the thrower would not stay in the proper orientation with the ground. I don't think you'll be able to just bend yours, as you'd have to add material to make up the extra length.

[ol'George]

Duh,
I just hate it when I try to make things more complicated than they are.
of course the holes should remain the same length!!
The arms just need to be put in a metal stretcher after bending.
it works like a money stretcher,-- when you are short,
just stretch things a bit ( thus rubber checks)
also works for sawing off a board that is already too short.
use a Wood stretcher.
but you have to "water" the material real good, so it can grow.
ok,
enough humor,
Thank you for all the help!:biggrin2.gif: