Mowing NH 930B 72" Rear Mount Finish Mower

[Rayrla]

Rayrla:
One thing you didn't mention - after you replaced the belt, did you have to re-tension it after a short period of time? The reason I ask is that after about five hours of mowing, I checked the tension, and it was loose. I know it's typical for a new belt to take an "initial stretch", and actually, this Gates belt stretched enough that I was able to replace my fabricated tension adjustment link with the O.E.M. link. I've now mowed another 5 or so hours, and the tension is right where I last set it. Life is good.
The only thing I'd like to compare sometime is the placement of the link anchor point. I'm not sure what to measure it from, but I guess I've got several months to figure it out.

Finally got some time to locate the link anchor point(LAP). All distances are to the center of the LAP. From left front gear box support leg, left front edge to LAP- 7 5/8 inches....From left wheel arm support, left front edge of rear steel plate attaching arm to mower deck to LAP-4 7/8 inches....From left top edge of mower deck to LAP- 24 3/8 inches(shortest distance from mower deck edge to LAP). Let me know if this doesn't make sense. If you come up with a better way of locating LAP, I can check measurements in the spring. Have a nice winter!

 

[Welshman]

Rayrla - Sorry so long on this response (we're putting on a 1300 sq.ft. addition to the house, and the mower hasn't been a priority). The only (I think) measurement of yours that I wasn't clear about was the 4 7/8" dimension, but it may not matter. At your 7 5/8" dimension, I get 9", and for your 24 3/8" dimension (which I think is the most important to my problem), I get 28 3/8"! I'm now going to try to insert some pictures (?), and I think it should be obvious to you that my anchor is in a different location than yours. If I'm successful with the pictures, you will see my TWO anchor points ("LAPs"). The one in use is the one the dealer added - the other one is the OEM.

Well, I can't yet figure the picture thing out. If you're willing, you can PM me with your email address and I'll send them to you (I know how to do that). If not - I understand. I'll try and do a little research on how to do the pictures on TBN.
Thanks again.

 

[Welshman]

OK - Let's try this.

 

[Rayrla]

OK - Let's try this.

Sorry, Welshman. The measurements that I posted were wrong. I' ll try again.
All measurements are to the center of the hole that the adjustment rod goes through in the link anchor.
First, your picture 1, from left mower deck top....29".
Second, your picture 2, from LAP up to first raised surface of mower deck...2 7/8"(perpendicular distance from this surface to LAP).
Third, from gearbox support front left leg to LAP 9 7/8". If I remember correctly, in your picture 2, go from LAP to edge of gearbox support plate.
From your pictures, it appears that your OEM LAP is located close to mine.
If any measurements are unclear, let me know. Perhaps I can get some pictures.

 

[Welshman]

Update
Just an update, for anyone who's interested. I've gone the entire season without mower issues (actually one - I had to replace the belt tension spring - and I noticed it is slightly different than the previous versions). I check the belt tension regularly, but with very little, if any, adjustment needed.
Thanks again

 

[K3QNT]

Different question...My 930B tires can't hold air. Have replaced three ofm the wheels with stock replacements, still no luck. Anyone have a good soultion? Tubes? Foam, Solid tires?

 

[mikim]

Different question...My 930B tires can't hold air. Have replaced three ofm the wheels with stock replacements, still no luck. Anyone have a good soultion? Tubes? Foam, Solid tires?

Gemplers ultra seal tire sealant.....bullet proof

 

[k0ua]

Different question...My 930B tires can't hold air. Have replaced three ofm the wheels with stock replacements, still no luck. Anyone have a good soultion? Tubes? Foam, Solid tires?

hello saw your call, and just wanted to say hello and welcome to TBN
73
de James K0UA

 

[toddt]

Different question...My 930B tires can't hold air. Have replaced three ofm the wheels with stock replacements, still no luck. Anyone have a good soultion? Tubes? Foam, Solid tires?

Had the same problem, changed to the foam filled ones. Foam filled ones did not last that long. So I went with Woods 15638 ( Amazon.com: Steel Wheel Assembly WOODS/15638: Patio, Lawn & Garden ) They have lasted several years.

 

[toddt]

Switching from New Holland 930B Mower Belt Issue - Page 2

From Welshman: "As I indicated on one of the later pages (5 ?) my "new" pulleys were just "slightly" larger than the old. As you will see as you read through - the Gates belt is measurably longer than the "current" New Holland belts. How old is your belt? If you have any questions from the other thread, post them on the other thread so we can better keep the info together, in case someone else needs it."

The pulley on the new spindle is larger than the original pulley. I will guess that my old belt is 8 years old. When I put the old belt and new Gates B120 belt together they are almost the same size. Took both belts to my New Holland parts guy and he came up with the same conclusion. I now have on order a Gates B122, it should arrive Wednesday (7/10/2013).