Snowthrower question

[608KEB 795]

The tall chute snowthrower on my 520H  will twist the kotter pin and disconnect from the lift rod.  I've  also used  kotter keys with worse results. Has this happened to anyone else? I do have 2 washers on the end of the lift rod. Adding maybe 1/8 of a inch to the total length  of the lift rod.  I've  never had a problem  with the short chute snowthrower  that I have hooked up to my B100.

Edited January 27, 2019 by 608KEB

[gwest_ca-(File Mod) 11,033]

Lost a few until I discovered the pin should be a 3/16" cotter pin used with a 5/8" SAE flat washer.

Had to ream out the rust to get the 3/16" pin in but no more failures.

A spring pin in this application gets pushed out too easy at the worst times.

 

Garry 

[Ed Kennell 38,023]

I  had the same problem till I drilled mine out for a 1/4" Stainless Steel bolt and Nylock nut.   

[608KEB 795]

Thanks for the replies. I used a washer also. I'll try the 3/16" pin with a new washer first. If that doesn't  work. I'll  drill it out to a 1/4". We're  supposedly  getting  some snow here. Starting tonight!

[Navig8r 132]

I actually had my short-chute pull the lift rod off the pin while in use because the washer I used was 3/4 instead of 5/8... the cotter pin was still in place, but mangled... apparently proper hardware is key at this connection!

[peter lena 8,583]

in addition to the replies above, I have found FENDER WASHERS  to be a great help ,   https://www.homedepot.com/p/Everbilt-1-2-in-x-2-in-Metallic-Stainless-Steel-Fender-Washer-2-per-Pack-800541/204284504   , you can get these at your local hardware store , in the pull out slide tray area. found the extra coverage along with lubrication ,made my lift rod to hook up a non issue , pete

[peter lena 8,583]

hiding in plain site, 608keb, that 4x4 that your lift rod is sitting on is the perfect mount to put under the rear edge of your thrower . I found that hooking it up to front , TECH A MATIC first ,holds it in place , putting it on that 4x4 makes  the lift rod hook up very easy.pete

[WVHillbilly520H 10,373]

14 hours ago, 608KEB said:

The tall chute snowthrower on my 520H  will twist the kotter pin and disconnect from the lift rod.  I've  also used  kotter keys with worse results. Has this happened to anyone else? I do have 2 washers on the end of the lift rod. Adding maybe 1/8 of a inch to the total length  of the lift rod.  I've  never had a problem  with the short chute snowthrower  that I have hooked up to my B100.

IMHO, the best thing to use in these snow throwers are 3/16" lynch pins or PTO pins...you can pull the loop over the rod before "locking" on the pin just like the rear hitch lock handles for the snow plow, Jeff.

[608KEB 795]

I'm all rigged up. 5/8" washers, 3/16" Lynch pins, 3/16" pin, 3/16" bolts n locking nuts. I'll try them all! Bring on the snow! The old pin was smaller. I also used 3/4" washers prior to today. It was all I had at the time. Hopefully the new hardware will work!

[wallfish 16,985]

The smaller 5/8 washer will need to shear the pin instead of allowing it to bend like the 3/4 did.

[gwest_ca-(File Mod) 11,033]

I think the SAE washer is the key.

5/8" SAE flat washer has 1-5/16" OD and 21/32" ID

5/8" USS flat washer has 1-3/4" OD and 11/16" ID

 

Garry

[WHX?? 48,784]

Same boat here 608.. will have driveway full of hardware to look for in spring that's fer sure. Here's what I have on mine and seems to rubbing on the asphalt as the hitch pin is ground down. Found it while I had the manual snow remover, the missus,  out  

Had a 3/16 SS one on it but same thing. Don't know which washer I was running as is lost. Thanks for the tips guys.

[608KEB 795]

So should I use one 5/8" washer or two washers?

[WVHillbilly520H 10,373]

6 hours ago, 608KEB said:

So should I use one 5/8" washer or two washers?

Start with 1, IMO that lift rod needs to "float" a bit on the housing stud.

[Ed Kennell 38,023]

                                                                       The lift rod must be free to move on the pin when you lift the blower

[WHX?? 48,784]

18 hours ago, 608KEB said:

I'll try them all! Bring on the snow!

I'm sending some down your way! News 27 says you guys are supposed to get a little less than the central part of the state. Don't look that way on my radar tho!

[608KEB 795]

I used the 520H without a problem today. One 5/8" washer and one lynch pin. I got some seat time today. I clean off 2 other driveways also.