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Clutternut


Joined: Feb 27, 2005
Points: 2

Removing broken shear pins
Original Message   Feb 27, 2005 12:19 pm
Hi everyone. Great site. We have a MTD two-stage, model 3BA snow thrower. We're brand new to the art of snow removal by any means other than a shovel and you guessed it, we hit something on the second day and sheared the pins. There seems to be four of them and three of the holes still have part of the pin in there. I don't have a punch tool and even if I did, how are you supposed to swing a hammer in that small area? Do I have to remove the the intake housing (if thats what it's called) to get better access to the axle?
Replies: 1 - 10 of 10View as Outline
mml4


Snow is good,
Deep snow is better!


Joined: Dec 31, 2003
Points: 541

Re: Removing broken shear pins
Reply #1   Feb 27, 2005 12:36 pm
Hi Clutter!

If the pin is broken the auger will have rotated on the shaft to some degree. You must line up the hole in the auger with the hole in the auger shaft and tap out the broken piece with a drift or punch. Do it using as little force as possible with as small a hammer as possible. You need not take off the blower housing.

in order to reorient the auger shaft  so that the pin hole will point forward so you can get more of a hammer swing :

1) turn the engine switch to the off position and remove the key

2)Hold the auger control handle down and pull the starter rope. This will turn the auger shaft.

3)chek the auger/ shaft position until they point forward so you can get the appropriate hammer swing.

4) do not enlarge the holes by using too wide a drift or punch.

5)Do not over tighten the replacement pin. The Torque specification is 11ft.lbs for my TroyBilt which is typical.

6)If there are grease fittings on the auger it's not a bad idea to grease them till the grease runs out the ends and spin the auger on it's shaft before installing the new pin. 

Welcome to the site,

Marc   

This message was modified Feb 27, 2005 by mml4


SnapperV210P,Toro22177,TroyBilt42010Snowthrower,Craftsman Shredder,American Turbo Pressure Washer HondaGX200,Stihl011Saw,EchoPas260Trimmer Edger,EchoPB602Blower,EchoHCR150Hedge Clipper
terrapin24h


The more I learn the less i know

Location: Rochester NY, USA
Joined: Dec 18, 2003
Points: 628

Re: Removing broken shear pins
Reply #2   Feb 28, 2005 9:35 am
I was able to literally push my old pin out with the new pin using only "hand force"  The trick is to get the auger holes centered so the old pin parts will pop out.  You may find that they just drop out once you get them aligned.

--chris
2001 Homelite VacAttack Blower
2001 6hp Toro PPace 22" mower
2001 Ariens 824LE
2002 6hp 2400 PSI Excell Powerwasher
2004 18hp Craftsman 27375 42" mower
2004 42cc Craftsman 18" chainsaw
Ben07


The more you know about something, the more you find there is to know.

Location: Pittsburgh, PA
Joined: Feb 26, 2004
Points: 178

Re: Removing broken shear pins
Reply #3   Feb 28, 2005 11:14 am
Hi Clutternut,   If you need to turn the augers, or their axils so the pin holes are facing outward so you can get a punch in there and have room for the ham,mer.  do this  Naturally while you are in there you should pull your spark plug wire off, so you don't have an accident  . To rotate that system to get it to the angle for clearance, push down an the handle that engages the auger system and pull the pull start till you get it to rotate to where you can maybe work at it better

Ben07

Ariens 8524LE, Toro CCR2000, Jacobsen S-B S-blowers, Generac 10hp Gen-convt. to N.G., 5 L-boys(D's F's &Dura( 74,77,80,88,00), Antiq. 1960 AYP 20 in. mag w 3.5 Tech mower. Ryan/Ryobi gas Trim. AYP 205 gas blwr. Mac c-saw,Toro E-blwr, 2 Weed-E e. stg. trims. outboards, boats, util trail, 2 Jeeps 
drinkingbird


Joined: Jan 26, 2005
Points: 44

Re: Removing broken shear pins
Reply #4   Feb 28, 2005 8:50 pm
I've always had luck just starting the new one in the hole, and wiggle the rake back and forth while pushing down, the old just falls out and the new pops in.

-Dave

itzbinnice


Joined: Nov 1, 2002
Points: 85

Re: Removing broken shear pins
Reply #5   Feb 28, 2005 9:00 pm
I use a little different approach. I remove the key and spark plug wire. Then I get on my knees (no remarks please) and turn the impeller slowly until I can line up ther holes. Much better contol to get there quickly and put the holes in a position where you can get the best swing with the hammer.

It would  be wise to have a punch handy, they're not very expensive, if the bolts are rusted in you will need it. Take the replacement shear pins to a local hardware, Sears, or Home Depot and ask somebody for help if you're unsure for the appropriate punch. You'll fix the problem with less stress and have the punch when it happens again.

This message was modified Feb 28, 2005 by itzbinnice
RalphS


There's a reason for more than one snowblower.
Because.
1974 Ariens 824 SnoThro
197? Ariens ST270 SnoThro
1988 Ariens ST824 SnoThro
196? REO Snowblower
1960 Ariens SnoThro
1964 Ariens SnoThro


Location: MA
Joined: Dec 21, 2004
Points: 70

Re: Removing broken shear pins
Reply #6   Mar 1, 2005 11:36 am
I would just add that when you're buying shear pins to replace the broken ones, get an extra set while you're there. 

The suggestion to grease and rotate the augers is a very good one, as Marty (Majorxlr8n) and I can attest to. 

Good Luck

Ralph

snowshoveler


tides in dirts out surfs up

Location: bridgewater nova scotia...aka the swamp
Joined: Jan 3, 2003
Points: 1261

Re: Removing broken shear pins
Reply #7   Mar 2, 2005 8:22 pm
sheer pins or bolts...

tape a couple extra ones to the handle .

you will always have them.

wrenches and hammers and punches are easy to find but those darn sheer bolts are lost as soon as you put them down.

also curious that you have 4 sheer bolts in one machine...can you elaborate.

later chris

craftsman 10/28 snowblower with tracks   husky 372xpg chainsaw   sachs dolmar bc212 bushsaw   mondo trimmer   monster tractor with trailer    cheep wheelbarro and couple shovels and a partridge in a pear tree 
terrapin24h


The more I learn the less i know

Location: Rochester NY, USA
Joined: Dec 18, 2003
Points: 628

Re: Removing broken shear pins
Reply #8   Mar 3, 2005 8:47 am
snow--
    new mtd's have quad-sectional augers, each section has it's own shear pin, erego 4 shear pins.  It's hard to see in the pic below, but if you look clse you can see the section break between the augers:




--chris
2001 Homelite VacAttack Blower
2001 6hp Toro PPace 22" mower
2001 Ariens 824LE
2002 6hp 2400 PSI Excell Powerwasher
2004 18hp Craftsman 27375 42" mower
2004 42cc Craftsman 18" chainsaw
snowshoveler


tides in dirts out surfs up

Location: bridgewater nova scotia...aka the swamp
Joined: Jan 3, 2003
Points: 1261

Re: Removing broken shear pins
Reply #9   Mar 3, 2005 5:29 pm
yes i have seen those models ,just havent worked on them yet.

looks like a good idea with the extra spiral on the augers,should provide a more consistant stream of snow to the impeller.

later chris 

craftsman 10/28 snowblower with tracks   husky 372xpg chainsaw   sachs dolmar bc212 bushsaw   mondo trimmer   monster tractor with trailer    cheep wheelbarro and couple shovels and a partridge in a pear tree 
solara


Location: Boston
Joined: Jun 16, 2004
Points: 242

Re: Removing broken shear pins
Reply #10   Mar 6, 2005 6:44 pm
found the head to a shear pin in the yard and realized that it had broken.  do not know when it had occurred.  (first storm? last storm?)

 most of the screw and  the nut were still in the shaft.  (and the rake was still only spinning w/ the shaft.)

Anyway  replaced it w/ the info from his thread.....starting w/ the tick list given by marc .

it was a realllllllllllllllllllllllllllllllll pain to get the old one out. the old one was bent. after a while  decided to remove the nut. that caused the screw to break in a second place.   that removed some of the bent screw shaft(?) and it finally came out.

Thanx

2004-2005 Ariens 11528LE
Jacobsen snow-burst
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