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Snow Blade Lift Height 1650

Posted: Sun Jun 28, 2020 5:33 am
by ReicheP
I've used my 1650 for years with the snow blade for winter work without issue. This winter I noticed the lift height wasn't what it used to be. It would only lift maybe 2" max.

Yesterday I mounted the same blade set up to my 1811and have a good say 4"+ of lift.

So before I tear into the 1650 looking for the problem I'll ask for suggestions where to start. There were no mechanical changes to the 1650 between seasons. Note, If I leave the blade suspended when off it will eventually hit the ground. It's a slow drop over time.

Suggestions?

Re: Snow Blade Lift Height 1650

Posted: Sun Jun 28, 2020 9:18 am
by Tom Scott
Does the rockshaft lift arm have multiple holes? A hole further out on the rockshaft will provide more lift. Conversely, if the bracket for the lift rod at the blade has multiple holes, then the hole closest to its attachment point will provide more lift.

The above are likely stupid questions, as you may only have one hole on each end to choose from, but figured I'd mention. I haven't had anything but SGT for awhile, so I can't remember all the standard GT stuff. Anyway, a change in hole changes the linkage lift ratio.

If none of that is an issue, then I'd mount up the blade. With the tunnel cover off, and before hooking up the rod, note if it looks like you're getting full travel from the lift cylinder. Then hook up the rod, and not if the lift cylinder is still providing full travel.

Then concentrate on the rockshaft. Cycle the lift cylinder from full down to full up. From what I remember the rockshaft output is pinned to an inner shaft. If those pins break, it will spin on the inner shaft that is driving it.

Again, this second suggestion might be stupid too if the 1650 isn't built that way... I was too lazy to look at the parts blowup this morning! Good luck!

Re: Snow Blade Lift Height 1650

Posted: Sun Jun 28, 2020 9:36 am
by ReicheP
it will spin on the inner shaft that is driving it.
Tom thanks for the suggestions. If I get full lift from the rear rake and not the front might that suggest broken pin?

If they are sheared, easy replacement?

FWIW currently working on a yard full of cut off branches from a downed maple tree. 1650 rear rake and 1811 front blade making moving the cut offs enjoyable.

Notice the pedal return bungie cord on the 1650.
yard work.png
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Re: Snow Blade Lift Height 1650

Posted: Sat Jul 04, 2020 3:19 pm
by ksanders
This isn't your issue since it used to be right but on a side note a narrow frame lift rod is a little different and if you had the wrong one that would cause the height issue.

Secondly I agree on a sheared pin somewhere. It isn't terrible if it's lined up and you can beat it out. If not they can be fun. Even unbroken ones can be hard to drive out. It might even be the one outside the frame. The ends are still in there so it's hard to tell if broken. Also I found out two years ago the parts lookup on a 682 isn't correct for pin size both on partstree and the dealer. I took my old one to the dealer to get one the right size. Might be worth checking out if you plan to order online. The pin was almost $7.

Lastly love the rake!

Re: Snow Blade Lift Height 1650

Posted: Mon Sep 07, 2020 1:54 pm
by ReicheP
Finally found time to check on the 1650 lift.

Looking at the linkage it appears this bolt has back out and is jamming the linkage. does this look normal?

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Re: Snow Blade Lift Height 1650

Posted: Mon Sep 07, 2020 6:41 pm
by Dave C
thought just saposse to be a roll pin eh?

Re: Snow Blade Lift Height 1650

Posted: Mon Sep 07, 2020 7:44 pm
by ReicheP
So if that is supposed to be a roll pin, it's been replaced with a bolt hammered in. Either it's backed out or not in far enough which doesn't allow the rock shaft to pick up the front blade.

Make sense?

Re: Snow Blade Lift Height 1650

Posted: Tue Sep 08, 2020 11:24 am
by JMotuzick
Paul
Yes, total sense, I would get the proper spriol pin and re-install. From memory 5/16-2 should be about right. The deck arms would also be attached the same way. If they are off from each other replace as needed as well. They can be a bear to drive out if they are twisted. Also fun to get the holes to Aline properly on and reinstall!

Re: Snow Blade Lift Height 1650

Posted: Tue Sep 08, 2020 1:56 pm
by ReicheP
According to the parts diagram it's 5/16 X 1-1/2 and have on order from McMaster. Can it be driven in from below?

Re: Snow Blade Lift Height 1650

Posted: Tue Sep 08, 2020 8:36 pm
by dag1450
This is kinda embarrassing that my 1650 is this accessable for pics like this :oops:
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Re: Snow Blade Lift Height 1650

Posted: Tue Sep 08, 2020 8:38 pm
by dag1450
Paul...with the size of that bolt head...I'm wondering if someone had a larger drill in there also. Maybe remove the bolt before ordering pins

Re: Snow Blade Lift Height 1650

Posted: Wed Sep 09, 2020 9:05 am
by Tom Scott
Paul - Make sure it is a "coiled spring pin" you ordered ("Spirol" is a brand name for the major manufacturer of coiled spring pins). A regular roll pin is not nearly as strong and will just be waiting to break and give you more grief in the future.

If you look in dag's pictures, you can see the coil design.

For a little bit more strength you can even install the next size down of Spirol pin inside of the first, larger pin.