Junkman
Super Member
If you have the blade welded, have it balance as well. A blade spinning at high speed needs to be balance.
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BX-2200 Grass Catcher
- Thread starter firec
- Start date
- Views: 5902
UMMM, my fan is PLASTIC. Where did you get a metal fan?? Is it for a BX2200?
BTW, I haven't had any shear bolt problems, close to 400 hrs now (4 seasons) except for the stick in the fan. Caused shear bolt AND fan blade to break. As stated in a previous post, shear bolt was cheap, fan was $80. I always mow at full throttle and usually in high gear (unless the grass is wet).
An interesting note: I have a 48" tiller that I have NEVER broken the shear pin on. However, every time a friend of mine borrows it, he seems to break about 2 shear pins an hour.... I buy them by the 10 packs for his usage. I have watched him, but haven't seen him do anything different than me. I'm sure it's a procedural thing, but haven't place a finger on it yet.
BTW, I haven't had any shear bolt problems, close to 400 hrs now (4 seasons) except for the stick in the fan. Caused shear bolt AND fan blade to break. As stated in a previous post, shear bolt was cheap, fan was $80. I always mow at full throttle and usually in high gear (unless the grass is wet).
An interesting note: I have a 48" tiller that I have NEVER broken the shear pin on. However, every time a friend of mine borrows it, he seems to break about 2 shear pins an hour.... I buy them by the 10 packs for his usage. I have watched him, but haven't seen him do anything different than me. I'm sure it's a procedural thing, but haven't place a finger on it yet.
bluecon1
Bronze Member
I've a local fellow here who welds plastic. Not sure what the process is actually called, but it involves heat and filler material. I'll sand the weld smooth. It turns somewhere around PTO speed (540+/-) so by sanding any ridges, I should be close to balance. Hopefully, I won't damage the new one I just put on. /forums/images/graemlins/shocked.gif
surfran
Platinum Member
I've had my unit for over a year, but mostly only use it in the spring and fall for early mowing and leaf pickup. The first time I used it, I broke the sheer pin, but I thought I hit a stick so it didn't phase me. I didn't know the hardness, so I picked up grade 5's at TSC. I put a grade 5 in it and haven't had a problem since.
Now I have sucked up leaves at 12" deep last fall after my son was done playing in the pile and I was too lazy to rake them back out. Mind you I went very slow and had to empty bags a few times to complete this, but it still beat raking them again. /forums/images/graemlins/grin.gif
I always engage my PTO at low rpm's when just mower or both mower and bagger.
I would think if you are breaking them as often as you are, something is wrong with the unit.
Hope you figure it out soon.
Now I have sucked up leaves at 12" deep last fall after my son was done playing in the pile and I was too lazy to rake them back out. Mind you I went very slow and had to empty bags a few times to complete this, but it still beat raking them again. /forums/images/graemlins/grin.gif
I always engage my PTO at low rpm's when just mower or both mower and bagger.
I would think if you are breaking them as often as you are, something is wrong with the unit.
Hope you figure it out soon.
Junkman
Super Member
copy and paste this address into your browser or click on the link.....
http://www.tractorsmart.com/Books/GCK60BX.htm
http://www.tractorsmart.com/Books/GCK60BX.htm
Tom_H
Veteran Member
I engage at low RPM. I quit usin' my grass blower & catcher. I just hated them. The mulch kit & blades are a marvel. Anybody near central CA wanna buy my blower & catcher?
This is unlikely but is there a chance you bought a box of shear pins from a little known aftermarket supplier? Sometimes unreputable manufacturers use defective alloys in an effort to save money. If this WERE the case, you could break one after another. Did you buy pins with the right specs? Again I DOUBT this is the answer, but when all else fails, look for alternative possibilities.
This is unlikely but is there a chance you bought a box of shear pins from a little known aftermarket supplier? Sometimes unreputable manufacturers use defective alloys in an effort to save money. If this WERE the case, you could break one after another. Did you buy pins with the right specs? Again I DOUBT this is the answer, but when all else fails, look for alternative possibilities.
Tom_H
Veteran Member
Yep, Kubota parts. Came from the dealer when I bought the tractor. I love it. Some people on here don't. You gotta' get the conditions right. There are some old threads you can go back & search for with a lotta' good info. Always good to do a lotta' readin' before you make up your mind.
blackmajicwoman
Silver Member
First off, I apologize for the long post. I know this thread is old, but I have to chime in hear. Last year I experienced this problem twice throughout the summer. I chaulked it up to the lawn being too think and probably a little wetter than I normally like to cut...but sometimes you have no control over the weather.
Anyway, the other night I cut my 30,000 sf lawn. Height of the mower was at 3", and the lawn was at a sporadic 4"-4 1/4". Lawn was not wet, but a little moist in spots, as moist turf is in New England this time of year. After only 2 passes, I new that I had already snapped my shear pin on the "PTO" gear box side of the transfer shaft. So, having a number of spares, pulled into the garage, replaced, and 15 minutes later, back to mowing. About 20 minutes later...same thing, except it was the shear bolt I had just replaced. Back to the garage, repair, back to mowing....about 20 minutes later...guess what??? Replaced with my last remaining spare, but noticed the "PTO" side gear box was really hot, while the "fan" side gear box was only slightly warm.
I managed to finish mowing my lawn, but decided to perfrom an oil changed on both gearboxes. On the "PTO" gear box, oil level was at about 3/4 and was very black and somewhat thin. On the "Fan" gearbox, oil was full and still had quite a bit of color to it. Not sure why this was such, as I had not yet performed an oil service on either gearbox, so this is how it came from the "factory". Topped off both gearboxes with fresh SAE 90 (that exceeds GL 5) and ran the grass catcher at full throttle for nearly 20 minutes (while tractor was parked). I know I didn't have much of a load on the grass catcher, but neither gear box got beyond slightly warm.
I am thinking that the deficient gear oil cause the gear box to heat up substantially, causeing the shear bolt to heat up and weaken. I guess I will find out the next time I mow the lawn. Has anyone else experience anything like this?
Also, I disagree with mowing at 1/2 throttle...manual says to mow at full throttle in low range (for BX series). I would think there would be less of a "load" on the bagger drive chain at full throttle...just my 2 cents.
Anyway, the other night I cut my 30,000 sf lawn. Height of the mower was at 3", and the lawn was at a sporadic 4"-4 1/4". Lawn was not wet, but a little moist in spots, as moist turf is in New England this time of year. After only 2 passes, I new that I had already snapped my shear pin on the "PTO" gear box side of the transfer shaft. So, having a number of spares, pulled into the garage, replaced, and 15 minutes later, back to mowing. About 20 minutes later...same thing, except it was the shear bolt I had just replaced. Back to the garage, repair, back to mowing....about 20 minutes later...guess what??? Replaced with my last remaining spare, but noticed the "PTO" side gear box was really hot, while the "fan" side gear box was only slightly warm.
I managed to finish mowing my lawn, but decided to perfrom an oil changed on both gearboxes. On the "PTO" gear box, oil level was at about 3/4 and was very black and somewhat thin. On the "Fan" gearbox, oil was full and still had quite a bit of color to it. Not sure why this was such, as I had not yet performed an oil service on either gearbox, so this is how it came from the "factory". Topped off both gearboxes with fresh SAE 90 (that exceeds GL 5) and ran the grass catcher at full throttle for nearly 20 minutes (while tractor was parked). I know I didn't have much of a load on the grass catcher, but neither gear box got beyond slightly warm.
I am thinking that the deficient gear oil cause the gear box to heat up substantially, causeing the shear bolt to heat up and weaken. I guess I will find out the next time I mow the lawn. Has anyone else experience anything like this?
Also, I disagree with mowing at 1/2 throttle...manual says to mow at full throttle in low range (for BX series). I would think there would be less of a "load" on the bagger drive chain at full throttle...just my 2 cents.
