Mowing 48" Finish Mower Blade challenge
- Thread starter Jiminy
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MossRoad
Super Moderator
- Joined
- Aug 31, 2001
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- 58,044
- Location
- South Bend, Indiana (near)
- Tractor
- Power Trac PT425 2001 Model Year
As I recall, isn't the center blade held on just a little differently than the outer blades? I recall retainers, or devices to keep the outer blades from being able to spin on their mounts while the center blade was just a flat washer. I think it was because the center blade is affixed directly to the motor that there was no retainer so if you hit something solid, the center blade could possibly spin on its shaft instead of damaging the motor. I'm going to have a look at my deck the next time I mow, which may not be a while because we have had no measurable rain in a loooong time. 
BobRip
Elite Member
I don't think anyone else suggested this, but before starting the blades, I take the engine down to a fast idle. This reduces the start up stresses on bolts, belts, and pulleys. Too low a fast idle and the engine will stall. You may have to play with this.
KentT
Elite Member
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- Sevierville, TN
- Tractor
- 1993 Power Trac 1430 w/Kubota diesel engine
I do the same thing...
KMA
Gold Member
I do this also. :thumbsup: I think this is especially important when using the brush mower since the blades kick back against the stop bolts, but most likely good for the finish mower too.
MossRoad
Super Moderator
- Joined
- Aug 31, 2001
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- 58,044
- Location
- South Bend, Indiana (near)
- Tractor
- Power Trac PT425 2001 Model Year
Make me #4 for the slow engine RPMS at mower or brush hog startup.
ponytug
Super Member
Always. I try not to shock mechanical components, and it seemed like the right thing to do.
All the best,
Peter
All the best,
Peter
Guys,
You all continue to make great suggestions.
Quick Update: I am checked the areas from your suggestions, and I used the blue permatex on the new grade 8 bolt, and am starting at low rev. I just cut a little over an acre and it held fine. Hopefully, it will continue to hold. Thanks for all of the great ideas.:thumbsup: Awesome forum!
Jim
--
As I recall, isn't the center blade held on just a little differently than the outer blades? I recall retainers, or devices to keep the outer blades from being able to spin on their mounts while the center blade was just a flat washer. I think it was because the center blade is affixed directly to the motor that there was no retainer so if you hit something solid, the center blade could possibly spin on its shaft instead of damaging the motor. I'm going to have a look at my deck the next time I mow, which may not be a while because we have had no measurable rain in a loooong time.
Yes. Your recollection is correct. I spoke to Terry about it, and he was surprised that it had happened. He was not aware of the problem on another unit. I think I or the previous owner must have hit something to cause the weakness. Anyway...it is holding for now. I am going to play it cool like Luke and see if it continues to hold.
By the way...talking about the weather, my electric bill from Philadelphia Electric shows the average daily temperature for July at 80 while one year ago it was 73. No wonder everything is frying without the rain. We had some recently and the ground is still dry. Is it the same everywhere else? Jim --
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