Lawn Care Business Forum Lawn Care Business Book Lawn Care Business Blog Lawn Care Software
Home Forum Contract & Flyer Templates Blog Software Videos Podcast Calculators / Estimators Store Mower Review Design It Yourself Lawn Business School

Go Back   GopherHaul Landscaping & Lawn Care Business Marketing Forum > Lawn Care, Landscaping, and Property Management Forums > Truck, Trailer, and Outdoor Power Equipment Discussion, Repairs.

Truck, Trailer, and Outdoor Power Equipment Discussion, Repairs. Questions on your truck, trailer, commercial lawn mowers, lawn mower, mower parts, lawn tractors, engines, edgers, trimmers, pole saws, aerators, hydro seeders, snow plows, chain saws, stump grinders??

Unbalanced blade= Big Problems


Truck, Trailer, and Outdoor Power Equipment Discussion, Repairs.

Questions on your truck, trailer, commercial lawn mowers, lawn mower, mower parts, lawn tractors, engines, edgers, trimmers, pole saws, aerators, hydro seeders, snow plows, chain saws, stump grinders??
Reply
 
Thread Tools Search this Thread
  #1  
Old 08-17-2009, 12:20 PM
andyjoneslawncare's Avatar
andyjoneslawncare andyjoneslawncare is offline
Member
 
Join Date: Jul 2008
Location: Sarasota, FL
Age: 42
Posts: 75
Rep Power: 7
andyjoneslawncare is on a distinguished road
Default Unbalanced blade= Big Problems

This week the pully over the center blade of my Cub ztr pulled 2 bolts off the deck and was tilted back. Left me with about 2 hours of push mowing last saturday. I wasn't sure of the exact threads, so I installed 2 bolts that just fit through the holes with washers and nuts on the end, which snapped off in about 4 seconds. As I tried to undo one of the other 2 bolts to take one to the hardware store to buy the correct thread, it snapped off. There are 4 bolts holding the center pully/blade to the housing. Now, 2 are missing and 2 are broke off. Sooo, I drilled out the holes slightly bigger, rethreaded them, and installed new, tightly fitting bolts, and more importantly, got to the root of the problem- an unbalanced blade. I grinded off the back side of the blade until it seemed balanced (stayed still when the deck was held vertically). So far so good. This probably sounds dumb but I didn't realize an unbalanced blade would snap off bolts in 4 seconds. Lesson learned. Do you guys have a way to keep blades balanced or check them, or can you just know somethings wrong by the vibrations? Instead of grinding one side, do they make strong enough little magnets or weights to add to the light side?
Reply With Quote

Stop guess-timating. Learn how to estimate and make money! $$$
Mow Time Estimator Lawn Care Price Estimator Mulch and Topsoil Calculator Snow Plow Estimate Calculator


  #2  
Old 08-17-2009, 02:09 PM
CHEESE2009 CHEESE2009 is offline
Dr. Scott - Ruler of the Underworld
 
Join Date: Mar 2009
Location: Switzerland, Grindelwald
Age: 74
Posts: 4,475
Rep Power: 0
CHEESE2009 is on a distinguished road
Default

Lawn care business tipsLawn Care Business Book
Quote:
Originally Posted by andyjoneslawncare View Post
This week the pully over the center blade of my Cub ztr pulled 2 bolts off the deck and was tilted back. Left me with about 2 hours of push mowing last saturday. I wasn't sure of the exact threads, so I installed 2 bolts that just fit through the holes with washers and nuts on the end, which snapped off in about 4 seconds. As I tried to undo one of the other 2 bolts to take one to the hardware store to buy the correct thread, it snapped off. There are 4 bolts holding the center pully/blade to the housing. Now, 2 are missing and 2 are broke off. Sooo, I drilled out the holes slightly bigger, rethreaded them, and installed new, tightly fitting bolts, and more importantly, got to the root of the problem- an unbalanced blade. I grinded off the back side of the blade until it seemed balanced (stayed still when the deck was held vertically). So far so good. This probably sounds dumb but I didn't realize an unbalanced blade would snap off bolts in 4 seconds. Lesson learned. Do you guys have a way to keep blades balanced or check them, or can you just know somethings wrong by the vibrations? Instead of grinding one side, do they make strong enough little magnets or weights to add to the light side?


Usually I'd just take the blade off & balance it on a piece of wood. If one side is heavier, I grind it a little more... Eventually it becomes balanced with a little time.


If there is an awkward vibration, your blades are most likely unbalanced.

I don't know about magnets working too well...
Reply With Quote
  #3  
Old 08-17-2009, 04:46 PM
turfmaster's Avatar
turfmaster turfmaster is offline
Senior Member
 
Join Date: Apr 2009
Location: Midwest
Posts: 366
Rep Power: 7
turfmaster is on a distinguished road
Default

Stick a bolt or screw horizontally in a vise. Put the blade hole over that.
Which ever end is down gets the weight removed.
Reply With Quote
  #4  
Old 08-17-2009, 06:57 PM
SuperiorPower
Guest
 
Posts: n/a
Default

Quote:
Originally Posted by turfmaster View Post
Stick a bolt or screw horizontally in a vise. Put the blade hole over that.
Which ever end is down gets the weight removed.
Exactly. However, some mowers (including some Cub Cadets) have a star or spline center hole. There is a cheap blade balance that is available that looks like a cone so you can set the blade on it and see easily if the blade is balanced. Once your blades are balanced right, make sure you sharpen equal amounts from both ends. And NEVER, let me repeat, NEVER, grind from the back side of the blade. Always grind more off the cutting edge of the blade. Grind the blade as if you were sharpening a dull blade. This is the only acceptable way to sharpen the blade.

The reason for this is that if you grind off the back of the blade you will affect the effectiveness of the discharge because the upturned part of the blade is what lifts the grass to give you a cleaner cut, discharges the cut grass, and helps keep the underside of your deck cleaner by discharging he grass out the side or bagging it. Needless to say, if you grind too much off the back you would most likely never be able to bag with those blades again. Also do not grind off the ends since the length of the blade is what keeps you from having skips in the grass where you just mowed.

And yes, blades can get out of balance to the point that it will literally shake your entire mower. This not only affects your deck by vibrating bolts loose, but also the rest of the mower.

Hope this helps,
Eli
Reply With Quote
  #5  
Old 08-18-2009, 02:30 AM
Steve's Avatar
Steve Steve is online now
Administrator
 
Join Date: May 2003
Posts: 37,365
Rep Power: 10
Steve has disabled reputation
Default

Quote:
There is a cheap blade balance that is available that looks like a cone so you can set the blade on it and see easily if the blade is balanced.
I think Eli means something like this.



__________________
- Subscribe to my Lawn Care Marketing Blog Feed and get daily tips sent to you. Free!
Download your Free trial of Gopher Lawn Care Software.
Reply With Quote
  #6  
Old 08-18-2009, 09:47 PM
SuperiorPower
Guest
 
Posts: n/a
Default

That is exactly it. It is relatively inexpensive and does the trick for most blades. Just be aware that most blades will not fit perfectly on the cone, and thus if the blade is slightly to one side of the hole or the other it can appear it is balanced when it really is not (or vice versa).
Reply With Quote
Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Torque for blade bolts?? oxfordlawn Truck, Trailer, and Outdoor Power Equipment Discussion, Repairs. 2 08-07-2009 06:50 AM
Blade Sharpening shorthorn Truck, Trailer, and Outdoor Power Equipment Discussion, Repairs. 13 05-27-2009 02:49 AM
One blade cutting lower hurtadolawncare Truck, Trailer, and Outdoor Power Equipment Discussion, Repairs. 3 07-26-2008 11:15 AM
Blade Selection Andrew's Lawn Care General Talk 7 03-23-2008 08:25 PM
How to sharpen a mower blade video Steve Truck, Trailer, and Outdoor Power Equipment Discussion, Repairs. 4 01-24-2008 08:30 PM

» Recent Threads
  RatingTitle, Username, & Date Last Post Replies Views
Laid off oil field...
Mr. Mow
Today 09:03 AM
Today 11:31 AM
by biglee
1 26
Quick money this morning,
biglee
Today 11:18 AM
Today 11:18 AM
by biglee
0 16
Share your stolen...
SGL1
05-27-2015 09:05 PM
Today 08:21 AM
by Chilehead
14 218
Hello
designr69
Yesterday 02:47 PM
Today 12:29 AM
by Steve
1 50
Hello All
HappyGrass
05-27-2015 10:10 PM
Today 12:27 AM
by Steve
4 107
big job for me....need...
holymoly
05-28-2015 06:15 AM
Today 12:26 AM
by Steve
5 133
What a JERK!
Chilehead
05-06-2015 08:13 AM
05-28-2015 03:13 PM
by HappyGrass
16 843
5 things you would...
Steve
09-11-2008 08:53 AM
05-28-2015 03:02 PM
by HappyGrass
5 2,172
how to make customers...
Bradcook21
05-27-2015 05:04 PM
05-28-2015 12:31 PM
by Steve
5 139
Equipment dealers
mattthelawnguy
05-21-2015 04:33 PM
05-28-2015 12:20 PM
by Steve
6 231
Things your lawn care...
Steve
05-27-2015 11:48 AM
05-27-2015 11:48 AM
by Steve
0 73
I can't believe people...
ExtremeLawncareServices
05-25-2015 10:29 AM
05-27-2015 11:45 AM
by jrs.landscaping
9 279
Show us your stripes
Just for Cuts
05-21-2015 03:07 PM
05-27-2015 11:35 AM
by Steve
5 202
Pissed off customers
stonegatedesigns
05-26-2015 05:29 PM
05-27-2015 11:26 AM
by Steve
3 145
Great start to the season
jcurr33
05-25-2015 08:49 PM
05-26-2015 01:50 PM
by Steve
2 110
uploading video on here?
holymoly
05-24-2015 08:13 AM
05-26-2015 01:37 PM
by Steve
2 107
new here ! need help
pgrace
05-23-2015 11:29 PM
05-26-2015 01:35 PM
by Steve
1 128
What's your next...
Steve
05-15-2015 11:54 AM
05-26-2015 01:25 PM
by Steve
14 423
problems with a customer
LawnCareMan280
05-19-2015 06:28 PM
05-26-2015 01:22 PM
by Steve
5 246
More Rain or Less?
Steve
05-20-2015 12:06 PM
05-24-2015 04:37 PM
by SGL1
12 313
Irrigation
pboy8634
02-21-2010 12:46 PM
05-22-2015 10:05 PM
by biglee
25 8,499
Beginner Mistakes:...
Steve
01-31-2007 11:45 AM
05-22-2015 09:58 PM
by biglee
37 9,255
Peace garden ideas
SGL1
05-13-2015 03:15 PM
05-21-2015 07:51 PM
by avetslawncare
16 560
These are the days on...
ExtremeLawncareServices
01-11-2015 10:41 AM
05-20-2015 09:18 PM
by ExtremeLawncareServices
84 6,925
Total yard rehab
SGL1
04-23-2015 03:59 PM
05-19-2015 08:22 PM
by SGL1
15 855
Say Hello !!!
Steve
03-19-2007 11:18 AM
05-19-2015 04:12 PM
by NinaMarie86
1,223 390,627
New Lawn Service
carmelitaslawnservice
05-19-2015 10:02 AM
05-19-2015 02:51 PM
by Steve
1 155
Landscaper Jailed After...
SGL1
05-18-2015 08:15 AM
05-19-2015 02:37 PM
by Steve
5 258
Pictures of commercial...
avetslawncare
04-01-2015 09:47 PM
05-19-2015 02:29 PM
by Steve
38 2,101
feeling like im being...
Bradcook21
05-17-2015 07:33 AM
05-19-2015 02:11 PM
by Steve
6 265
good news yesterday
Bradcook21
05-17-2015 07:08 AM
05-19-2015 06:16 AM
by Bradcook21
3 191
ignition coil
jasonw
05-12-2015 05:31 PM
05-18-2015 12:07 PM
by Steve
3 307
Anyone need help? I have...
biglee
05-06-2015 12:22 PM
05-18-2015 12:06 PM
by Steve
13 747
Big (to me) mulch job
tl757
04-23-2015 05:32 PM
05-15-2015 08:46 PM
by biglee
22 1,560
big dog mowers?
Bradcook21
05-13-2015 04:03 PM
05-14-2015 10:55 AM
by Steve
4 337
Small HOA Bid
lxarth
05-06-2015 10:37 PM
05-13-2015 11:55 AM
by Steve
9 565
New company in Michigan
SEM
04-24-2015 09:27 PM
05-13-2015 11:51 AM
by Steve
11 686
Fired for refusing to...
Mr. Mow
05-09-2015 06:15 AM
05-12-2015 01:36 PM
by Steve
6 561
I have ZERO confidence...
Just for Cuts
05-01-2015 04:24 PM
05-12-2015 03:53 AM
by jrs.landscaping
31 1,169
landscape insurance
clarkslawn
03-30-2015 10:14 PM
05-11-2015 01:15 PM
by Steve
6 1,080
String trim BEFORE mow...
Mr. Mow
04-12-2015 08:13 AM
05-10-2015 07:50 PM
by ExtremeLawncareServices
9 1,111
Bought my first STIHL...
Mr. Mow
05-09-2015 06:29 AM
05-10-2015 08:36 AM
by Mr. Mow
9 464
advice wanted please and...
CHenricks
05-07-2015 08:40 PM
05-08-2015 04:20 PM
by CHenricks
7 482
Hello
SallyBorowicz
05-06-2015 11:14 AM
05-08-2015 02:21 PM
by Steve
3 386
Mower Advice
tl757
05-06-2015 02:31 PM
05-08-2015 01:45 PM
by Steve
6 520
Home today...Still...
biglee
05-06-2015 11:59 AM
05-07-2015 12:06 PM
by biglee
2 388
I'm Back With The Best...
aduttonater
02-21-2015 12:41 AM
05-07-2015 11:17 AM
by Steve
79 4,092
color fliers?
holymoly
04-18-2015 02:32 PM
05-07-2015 10:57 AM
by Steve
16 1,090
Looking good
mrsmichigan
05-06-2015 09:47 AM
05-07-2015 10:53 AM
by Steve
1 326
What are your biggest...
Steve
05-05-2015 01:24 PM
05-07-2015 10:52 AM
by Steve
2 379
» Popular Tags
aerocore apartment bid apartment lawn care estimate applying auger billy goat brushcutter blades blowout bush commercial curb appeal services deliquentaccounts demonstration ditches door hangers employee problems equipment rental estimate facebook foreman free advertising google growing a lawn care business how to husqvarna jobs john deere quik trac landscape landscape services landscaping training lawn lawn care lawn care busines plan managing a lawn care business marketing more customers business mr dave mulch new business patio install per hour service pricing pto scag secrets to landscaping sell the vision shell shreaded small engine repair snow plowing sq ft square foot starting a lawn care business steep lawns swzt theft toro toro grand stand tractor auger trailer trailer mate pro tree trimmer rack up sell employee web design website website design winterization wood wright stander rh
Powered by vBadvanced CMPS v3.1.0

All times are GMT -5. The time now is 12:58 PM.


(C) 2011 Riggs Publications - Terms of use & Privacy Policy

All times are GMT -5. The time now is 12:58 PM.

(C) 2011 Riggs Publications - Terms of use & Privacy Policy