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Ron Nelson 
Silver Level
Joined: 12 Sep 2009
Location: Illinois
Points: 82
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 Topic: WD 45 Brakes
Posted: 05 Jun 2012 at 4:36pm |
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Does anyone have a way to get the bottom pins out of the brakes on a WD 45. Mine are frozen and I have heated them and haven't had any luck getting them loose. Any help would be appreciated. Thanks, Ron
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Larrywdin
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Joined: 17 Apr 2012
Location: Indiana
Points: 105
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Posted: 05 Jun 2012 at 5:47pm |
I used the brake pin puller in the picture, and kept steady pressure on it, and hammered on the pin in the hole in the bottom of the casting, and eventually, it came loose.
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Larrywdin
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Joined: 17 Apr 2012
Location: Indiana
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Posted: 05 Jun 2012 at 5:49pm |
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If you crank down on the pin too hard with this puller, it WILL pull the head right off the brake pin , so be very pationet,
Edited by Larrywdin - 05 Jun 2012 at 5:49pm
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Larrywdin
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Joined: 17 Apr 2012
Location: Indiana
Points: 105
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Posted: 05 Jun 2012 at 5:51pm |
Here's the company that makes the pin puller
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B26240
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Joined: 21 Nov 2009
Location: mn
Points: 3865
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Posted: 05 Jun 2012 at 6:50pm |
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You can also cut head of pin off with tourch then cut about 1/2 " of the pin off working through mouse access hole in bottom of axle housing -- then drive pin in 1/2" and cut again untill pin is gone. the end that is in the diff housing will come out with vice-grips. Do this job OUTSIDE as there will be much smoke from burning mouse nests, also wear FULL leathers so you don't get burnt!!
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stu(ON)
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Joined: 12 Sep 2009
Points: 377
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Posted: 05 Jun 2012 at 9:42pm |
By the time that I got my hands on the family WD, it had been so long since Dad had done the brakes that he couldn't remember doing them. But, after he passed on, I found his homemade puller.
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stu(ON)
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Posted: 05 Jun 2012 at 9:49pm |
Looks like one side was still stubborn, so here's another approach.
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FHOliver
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Joined: 11 Sep 2009
Location: Elgin Il
Points: 58
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Posted: 06 Jun 2012 at 12:01am |
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where you at in ill.
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Mike56073
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Joined: 14 Nov 2010
Location: New Ulm
Points: 154
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Posted: 06 Jun 2012 at 5:54am |
If you do end up going through the bottom to cut the pin off, be careful not to cut into the brake shoe hangers. Dont ask me how I know that.
One other thing, I know there is at least one company now that has new pins in stainless steel. Of course they are more expensive, but might be worth it.
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David Grubb
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Joined: 14 Sep 2009
Location: Rochester, Il
Points: 133
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Posted: 06 Jun 2012 at 1:02pm |
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I have to this job on my WD45 this summer. I have been lurking in the back ground on every post about this subject. It seems as though the pins are seized in the housings mostly at the outer ends. Once you get the outer area freed up the remaining problems are with corrosion buildup on the shaft making it difficult, but easier to get the shaft through the brake shoe holders. I have been giving the pins on mine a shot of every penetrant listed on this site and known to man every time I take the tractor out to mow. I was wondering how much it would help to warm the housing at the outer end of the pin, chill the pin down by spraying a can freon onto the head of the pin while shielding the still warmed housing, spraying some penetrant on the area, and then start working the pin out?
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Dave
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SteveM C/IL
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Joined: 12 Sep 2009
Location: Shelbyville IL
Points: 8612
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Posted: 06 Jun 2012 at 1:07pm |
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I'd imagine your heat/cool theory works better on paper that in real life.I'd keep dousing it with 50/50 actone-atf especially from inside the hole.Have had very good results with that stuff.
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David Grubb
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Location: Rochester, Il
Points: 133
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Posted: 06 Jun 2012 at 1:21pm |
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Well at least we know that spraying one kind of penetrant on top of another doesn't cause an explosion be cause that's what I've been doing.
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Dave
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CTuckerNWIL
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Joined: 11 Sep 2009
Location: NW Illinois
Points: 22825
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Posted: 06 Jun 2012 at 1:41pm |
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Steve, the heat cool theory does work but may be hard to do with that small of a pin. It sure can't hurt to try it though. I have used that theory on much larger stuff with good success.
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j.w.freck
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Joined: 16 Sep 2009
Location: karnack texas
Points: 1153
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Posted: 06 Jun 2012 at 8:59pm |
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a plasma cutter works real good on them pins...
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AC WD45
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Joined: 28 Sep 2009
Location: Mid Michigan
Points: 2060
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Posted: 06 Jun 2012 at 9:43pm |
 j.w.freck wrote:
a plasma cutter works real good on them pins... |
JW this and your post in the bush hog topic made me laugh real hard.
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German Shepherd dad
1957 Allis Chalmers WD45
#WD234847
1951 Allis Chalmers WD
#WD88193
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Vinnie/S.D.
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Joined: 11 Sep 2009
Location: Sioux Falls S.D
Points: 69
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Posted: 06 Jun 2012 at 10:00pm |
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use a sawsall no smoke cut offs peaces in the mouse hole and pound it in
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AC WD45
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Location: Mid Michigan
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Posted: 07 Jun 2012 at 2:03pm |
Vinnie/S.D. wrote:
use a sawsall no smoke cut offs peaces in the mouse hole and pound it in |
good luck. arent those hardend steel? better have a diamond tipped blade
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German Shepherd dad
1957 Allis Chalmers WD45
#WD234847
1951 Allis Chalmers WD
#WD88193
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Mike56073
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Joined: 14 Nov 2010
Location: New Ulm
Points: 154
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Posted: 07 Jun 2012 at 2:21pm |
good luck. arent those hardend steel? better have a diamond tipped blade I tried a sawzall once, the pins laughed at me..........
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Mike(SEIN)
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Joined: 12 Sep 2009
Location: RUSH County IN.
Points: 143
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Posted: 07 Jun 2012 at 2:34pm |
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Mine must have ben soft ,cause cheap sawsall blade went right through them
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SteveM C/IL
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Joined: 12 Sep 2009
Location: Shelbyville IL
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Posted: 07 Jun 2012 at 11:50pm |
All my mechanical things get to laugh at me every so often.
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ironac
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Joined: 06 Jan 2011
Location: Plainfield IA
Points: 283
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Posted: 08 Jun 2012 at 3:26am |
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Heat the pin up in the mouse hole. Get a saw with skinny blades that can fit in there and cut a chunk out. Cuts much faster if u get in nice and red.
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Brian Jasper co. Ia
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Joined: 11 Sep 2009
Location: Prairie City Ia
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Posted: 08 Jun 2012 at 6:40am |
stu(ON) wrote:
Looks like one side was still stubborn, so here's another approach.
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I did like this on my D17. I slipped a deep well socket over the welded on bolt and it drew the pin right out.
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"Any man who thinks he can be happy and prosperous by letting the government take care of him better take a closer look at the American Indian." Henry Ford
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