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post #16 of 75 Old 05-22-2018, 09:26 AM
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Re: 30 in deck just pushes grass over

The sloped.front guard with nose roller on the newer quick hitch 30" bush hogs is truly terrible. I removed mine and added a pair of Gravely deck weights.

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post #17 of 75 Old 05-22-2018, 09:39 AM
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Re: 30 in deck just pushes grass over

The front guard with roller aka "clamshell" was made in response to government safety regulations. There was no other way to make the 30" mower meet the requirements. Having said that, when using the mower for cutting grass, the quality of cut depends on the length of uncut grass being mowed. In long grass, the front guard does indeed push the grass over. Unless high lift blades (thin) are used, the grass will continue to lay over. Installing a old style guard will help but by modern standards, it renders the mower unsafe.

Code:
                              Current Inventory
   24G (Onan 24hp)    24GLX - was 16G  (Onan 24hp)   8249 - was 8129 (Onan 24hp)
        818T (Onan 18hp B48)       8163T - was 8123 (Onan CCKA) 
                              8183T (Onan B48)
   5665 w/brakes        5665        5660        Pro-8         Pro-16 w/brakes

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post #18 of 75 Old 05-22-2018, 09:50 AM
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Re: 30 in deck just pushes grass over

I offer this strictly as an "historical observation", what anyone does with their own mower deck is strictly their business.


My Dad bought a new Gravely LI outfit in 1961; tractor, sulky, 30-inch rotary knife mower with the L-106 drive, rotary plow.


By the time I started using the machine to cut grass in the early 1970's, Dad had "customized" his mower thus:

> Removed the tall, rear "fender" and stored it (? I've never found it...)

> swapped short, front "fender" to rear of mower.

> Removed second blade and flanged washer, ran with single "grass blade".


After having acquired my my own Model L's with their 30-mowers, several with stock "fender" configurations, and using them, I have come to the conclusion that Dad did his fender swap because he found the tall rear "fender" tended to get hung-up on brush stubble, particularly when backing-up.


I have no hands-on experience with the later "sloping-front" 30-inch mowers, but just looking at them, I'm not impressed.


Back when the Howard County MD public schools had Gravely walk-behinds ( into the 1980's), most of their 30" mowers had the "chains" front guard... I always liked that idea, and some day will put some on my 30-inch mower decks.


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post #19 of 75 Old 05-22-2018, 11:35 AM
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Re: 30 in deck just pushes grass over



A picture of the mower in question will answer many questions.

Code:
                              Current Inventory
   24G (Onan 24hp)    24GLX - was 16G  (Onan 24hp)   8249 - was 8129 (Onan 24hp)
        818T (Onan 18hp B48)       8163T - was 8123 (Onan CCKA) 
                              8183T (Onan B48)
   5665 w/brakes        5665        5660        Pro-8         Pro-16 w/brakes

For Gravely Manuals and more visit http://GTCOA.com
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post #20 of 75 Old 05-22-2018, 11:39 AM
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Re: 30 in deck just pushes grass over

Quote:
Originally Posted by Richard-tx View Post


A picture of the mower in question will answer many questions.

Here-here... top & bottom...
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post #21 of 75 Old 05-22-2018, 12:04 PM
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Re: 30 in deck just pushes grass over

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Originally Posted by Gravely Frank McM View Post
Here-here... top & bottom...


Oh yes, weíll do so much like photos


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post #22 of 75 Old 05-22-2018, 12:38 PM
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Re: 30 in deck just pushes grass over

Swapping-out the short guard sounds like a good idea or a great one actually because mine I took off was beat to heck, and if anyone has a question of how heavy duty these things are just take a BFH or a small 3 lb. hammer and try to knock the dents out of the rear guard, you wont have much success. I laid mine out on the deck and hit it w/a 3 lb. maul and it bounced back and about knocked my teeth out!
So I got a new one from Richards and it is a little shorter than the original one but I wish I would have just got a front one for the rear and run two front guards on it.
Im yet to get the front one but will soon.

There it is, new, primed and painted. I try to post pics with each post.
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Last edited by Gerrard; 05-22-2018 at 12:49 PM.
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post #23 of 75 Old 05-22-2018, 12:50 PM
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Re: 30 in deck just pushes grass over

Doing the front to rear guard move probably would allow a limited amount of clippings to discharge out the rear and also have added advantage of not hanging up on short stumps, etc.

I forgot to mention that the OP might consider a twin blade setup if finish mowing will be it's main use.

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- Too many attachments to list

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post #24 of 75 Old 05-22-2018, 12:54 PM
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Re: 30 in deck just pushes grass over

Quote:
Originally Posted by PA RedRider View Post
Doing the front to rear guard move probably would allow a limited amount of clippings to discharge out the rear and also have added advantage of not hanging up on short stumps, etc.

I forgot to mention that the OP might consider a twin blade setup if finish mowing will be it's main use.

Sent from my SCH-I605 using Tapatalk
Iv'e been seriously considering that to, I just wish someone had the so-called 'grass blade' AKA thin blade.
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post #25 of 75 Old 05-22-2018, 04:27 PM
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Re: 30 in deck just pushes grass over

Quote:
Originally Posted by Gravely Frank McM View Post
I offer this strictly as an "historical observation", what anyone does with their own mower deck is strictly their business.


My Dad bought a new Gravely LI outfit in 1961; tractor, sulky, 30-inch rotary knife mower with the L-106 drive, rotary plow.


By the time I started using the machine to cut grass in the early 1970's, Dad had "customized" his mower thus:

> Removed the tall, rear "fender" and stored it (? I've never found it...)

> swapped short, front "fender" to rear of mower.

> Removed second blade and flanged washer, ran with single "grass blade".


After having acquired my my own Model L's with their 30-mowers, several with stock "fender" configurations, and using them, I have come to the conclusion that Dad did his fender swap because he found the tall rear "fender" tended to get hung-up on brush stubble, particularly when backing-up.


I have no hands-on experience with the later "sloping-front" 30-inch mowers, but just looking at them, I'm not impressed.


Back when the Howard County MD public schools had Gravely walk-behinds ( into the 1980's), most of their 30" mowers had the "chains" front guard... I always liked that idea, and some day will put some on my 30-inch mower decks.


Gravely Frank
Great minds think alike That is exactly how I have my mower set up. I actually tried mine with no guards, and that caused some sort of serious vibration in the deck.

Without the front guard you can actually come up on a small tree, ease into it, and the mower will actually chop it down if you go slowly.
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post #26 of 75 Old 05-22-2018, 04:53 PM
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Re: 30 in deck just pushes grass over

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Originally Posted by Gerrard View Post
Iv'e been seriously considering that to, I just wish someone had the so-called 'grass blade' AKA thin blade.

Richard's has a 5/16" thick "Medium" blade, Letter "C", on page 17 of their on-line catalog...


The OEM Gravely blades with the longitudinal ribs stamped in them tended to bow upwards towards the outer ends.

They would "get a smile in them"...
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post #27 of 75 Old 05-22-2018, 05:31 PM Thread Starter
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It is the standard 106 style deck. No guard on front.
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post #28 of 75 Old 05-22-2018, 07:31 PM
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Re: 30 in deck just pushes grass over

Quote:
Originally Posted by Gravely Frank McM View Post
Richard's has a 5/16" thick "Medium" blade, Letter "C", on page 17 of their on-line catalog...


The OEM Gravely blades with the longitudinal ribs stamped in them tended to bow upwards towards the outer ends.

They would "get a smile in them"...
Thats the one I got from Richards, he referred to it as the 'medium' one.
Cant find all the pics of it but it seems almost like it is a 1/4" to long on both ends but it could just look like that.
Well crap the upper pic on deck is the 3/8" brush blade and the lower one is the medium one. Im outside to get some instructions on putting fan assy and new bearings & shaft back together and am getting a glare problem
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post #29 of 75 Old 05-22-2018, 07:32 PM Thread Starter
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Re: 30 in deck just pushes grass over

See if this helps.





Perry
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post #30 of 75 Old 05-23-2018, 08:07 AM
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Re: 30 in deck just pushes grass over

The blade in this picture is worn out. Scrap it.


Code:
                              Current Inventory
   24G (Onan 24hp)    24GLX - was 16G  (Onan 24hp)   8249 - was 8129 (Onan 24hp)
        818T (Onan 18hp B48)       8163T - was 8123 (Onan CCKA) 
                              8183T (Onan B48)
   5665 w/brakes        5665        5660        Pro-8         Pro-16 w/brakes

For Gravely Manuals and more visit http://GTCOA.com
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