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matt monte

snowblower bearings

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matt monte

did a search, didn't find anything. gonna start messing with this next week, picked it up for my 312-8. 1st off i noticed slop in this bearing. Not sure pn. is there any manual on how to replace? the sticker is very worn-out so im at a loss on how to correctly identify

20220921_184544[1].jpg

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matt monte

also i know this sounds stupid but how do you spool the wire to the snow shoot? keeps binding up

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gwest_ca

The model you have likely is on this list

Snowthrower DNA

All have 2 idler sprockets for the drive chain. Started out as 37" wide and the added wings make them 42" wide.

1966-67 model ST-376

1968 model 6-1211

1969 6-6211 plus 6-9111

1970-72 model 6-6212 plus 6-9112

All without front quick hitch so not a direct fit for 1973 and later tractors. Snowthrower rear frame mounts in the front of the tractor frame using 2 bushings and a long 3/8-16 x 8-1/2" bolt.

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Front quick hitch introduced in 1973. Snowthrower rear frame has a 5/8" diameter round bar.

1973-74 model 6-6212 plus 6-9113

1974 model 6-6213 - (First model to include 8-0221 extensions without the front straight return - just a flat plate)

1975 model 6-6214 - (First model to include 8-0221 [103552 replaced by 93-1617 and 93-1617-01] side extensions with the front straight return. First model to have a cable spool on chute rotating crank) Chute crank support decal 104461.

1976 model 6-6215 ------ Chute crank support decal 104461. This one -

1976 model 66-42ST01 - Chute crank support decal 104461. and this one are likely identical. The model number format changed.

1977 model 76-42ST01 - Chute crank support decal 104461. This one

1978 model 86-42ST01 - Chute crank support decal 104461. and this one

1979 model 96-42ST01 - Chute crank support decal 104461. and this one may be all the same. They started using a different model number for each model year.

1980 model 06-42ST01 - (Last 42" model to use 4 grooved rollers for the chute)

1981-82 model 06-42ST02 - (First model to use plastic collar for the chute but was a retrofit for older models. Last model to use wheels)

1983 model 06-42ST03 - (First model to use skids)

1984-87 model 06-42ST04 - (Last model to use a 3/4" diameter driveshaft)

1987-89 model 06-42ST05 - (First model to use a 7/8" diameter driveshaft)

1990 model 06-42ST06 - (Last model to use a cable to turn the chute)

1991-93 model 06-42ST07 - (First model with tall chute retained by 3 individual grooved retainers)

1993-2001 model 79360 - (2001 and earlier will fit 2002-2007 with kit 105-1503) (1994 first year for replaceable blower housing scraper bar)

2002-2007 model 79362

 

One difference in models is what the cable is wound around - the crank or a spool on the crank.

Does the chute turn in 4 grooved rollers?

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Blasterdad

Tractor Supply usually stocks them, on shelf item, just bring old one with you & compare.

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Pullstart

If you pul the pulley off the shaft, that bearing should be able to follow.

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squonk

 

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peter lena

@matt monte  do yourself  a favor , look up flange bearings , for a probable match up , with that solid base go to , you might even  switch to a 4 bolt  flange , critical  to this is hi temp grease lubrication at every movement point . lucas  red /  or prefered green grease . make every rotating  point easy / smooth to function , also detail in your chain drive auger set up , use specific , chain /  cable lubricant  , never let it dry out / rust , my  36x42  single stage spins up by hand ,  12 hp  runs that  without effort , pete 

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gwest_ca

I recall there being a problem finding a bearing with the correct OD and ID.

The 3/4" ID bearings usually have a 7/8" OD.

What they were doing is using the 7/8" ID bearing with a 7/8" x 3/4" bushing to fit the 3/4" shaft.

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peter lena

@gwest_ca  agree with that , finding  a matching bronze bushing is easy for fit assist , notice there is no mention of the grade or type of lubricant used in those bearings ?  you assume   that its the right stuff , with the continuous  bearing failures /  load dragging  on attachments . ever wonder why so many members are burning out pto , drive clutches ?  kind of like dragging a sled , you can make it better ,  pete  

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lynnmor
43 minutes ago, peter lena said:

@matt monte   critical  to this is hi temp grease lubrication at every movement point . lucas  red /  or prefered green grease

 

Since a snowblower operates in a cold environment with plenty of water and ice, I would think that a marine grease would be the best choice if one wants to open a sealed bearing for grease replacement.

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peter lena

@gwest_ca  agree with that , finding  a matching bronze bushing is easy for fit assist , notice there is no mention of the grade or type of lubricant used in those bearings ?  you assume   that its the right stuff , with the continuous  bearing failures /  load dragging  on attachments . ever wonder why so many members are burning out pto , drive clutches ?  kind of like dragging a sled , you can make it better ,  pete  

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peter lena

@matt monte  agree with the  marine grease  , also has a very extended range of protection.  temp amd durability , those  needle point grease  tips , are also very good  in tight spots . when I  fist installed my  snowblower years ago , used , neglected . was amazed that  it worked at all , their was so much collective drag  on it . just broke it down for function , kept gaining on it , up for sale now , it easily spins by hand , no screaming  shuddering attempt to function , it just  works like it should , done that on all my related  problems ,  go grease , pete  

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matt monte

thanks for all the responses. im gonna mock it up 1st then i will attempt to run it. ill post a better pic, using list i was able to figure out missing digit.  0642ST04.

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