Revisit Snowblower to 7100 series tractors

[BDSchmidt]

I have 2 7100 series tractors, a 7119H and a 7117H. I am trying to mate a 42" snowblower, 1690032 to one or the other. I have read an earlier post on the subject which has raised some questions for me. Both tractors have pivot arms with 1 ear and 1 pulley on them. THe other pulley is mounted in a slot and can be moved forward and backward but the one pulley on the pivot arm is not moveable to any "lower hole". I have the 147" belt. The hitch that I have looks very similar to the 1690557 that is pictured in the previous post with it's 1 pulley and belt stop. The problem comes when I put it all together... I can't get that belt to fit even with the back pulley moved forward in its slot. Back to the hitch...it is possibly a non simplicity produced, ie home fabricated one. How far away from the front axle should the holes that the blower housing pins to, be? Is there a picture with dimensions available of this hitch somewhere? Brian

[Dutch]

Here's what the 7100 series swing arm looks like with 2 ears. If you don't have 2 ears, your tractors may not have the original parts or may not be what they appear to be. What are your tractors' 169nnnn numbers? Measure the wheelbase (center of front axle to center of rear axle) to make sure the tractors are not the older (shorter) 7000 series. Do you have the 147" belt routed correctly?

[UCD]

[img]http://www.simpletractors.com/club2//attach/UCD/SnowblowerbeltDiagram.jpg[/img]

[BDSchmidt]

Dutch, The 7117 is 1690571, serial number 003352 and the 7119 is 1690638. I can't make out the serial number on that tag. I haven't measured the wheel base but they are definitely longer than my 3416S which is the same as the 7000 series, ( I think). Regarding belt placement, yes I'm routing it the same as in the pic. It would seem odd that I ended up with 2 units that both have the 1 ear pivot arms. I did buy them used but both are in very good to excellent condition so I can't see why they would have been replaced. Any other ideas? Brian

[MikeES]

Brian, my two 917 have serial numbers lower than yours and they both have the upper and lower tabs on the belt tightner swing arm. You cannot see the pulley mounting tabs until you take the swing arm pulley off. Here is a photo of what the snowblower hitch should look like.

[djarvis949]

If I did this right, you should have the hitch dimemsions

Don

[Dutch]

Both your 169nnnn numbers indicate the tractors are original. Like Mike said, unless you really look you may not see the second swing arm tab. Are you re-setting the swing arm spring lever to re-tension the belt? Did the spring come unhooked as they sometimes do? Why do you think the hitch may be home made?

[BDSchmidt]

Boy do I feel stupid now. I was looking for something more like the pictures in the parts manuals. I didn't realize the tabs would be so close to each other. Sure enough my units have the 2 tab system. Regarding my hitch... it doesn't have the "hooks" that fit over the axle, the welds seem alittle rough and the orange paint is not Simplicity orange. I came up with a used hitch today and comparing them I find the one I started with has the holes out farther away from the pulley than does the "new" one that I picked up. Using the "new" hitch and putting the PTO pulley down in the lower hole allows the belt to fit properly and the blower to operate..bring on the snow! Thanks everyone for your help and input. I'll try to look into things deeper before posting. Brian