Page 1 of 1

M37 snatch block?

Posted: Mon Sep 12, 2022 3:48 pm
by Murf
Anyone have a pic or the make/model/measurements of the snatch block used with the winch models?

Re: M37 snatch block?

Posted: Mon Sep 12, 2022 4:34 pm
by Elwood
The A-frame kit (TB9-2300-248-30) for the G741 trucks shows this snatch block:

M37 hoist small.jpg
M37 hoist small.jpg (243.67 KiB) Viewed 1165 times
I believe that it is a UW6. I have several of these on hand, and they seem about the right size. The block is in the ORD 9 book as p/n 7376463, Group 2001.1, but the description doesn't include a model or pulley diameter.

There's one for sale on eBay now, although it's a bit rough, with a broken part of the pulley, etc. But if you only need it for display, it might do. https://www.ebay.com/itm/265627963245?h ... R9rO6sPmYA

Re: M37 snatch block?

Posted: Tue Sep 13, 2022 2:16 pm
by Murf
Thanks for the info Ellwood!
Sent you a mesg.

Re: M37 snatch block?

Posted: Wed Oct 12, 2022 10:31 am
by Murf
Found an inexpensive one. Disassembled, blasted, primed and painted. Looks better than new!
20221012_142457.jpg
20221012_142457.jpg (243.53 KiB) Viewed 1078 times

Re: M37 snatch block?

Posted: Wed Oct 12, 2022 11:20 am
by Elwood
8)

Re: M37 snatch block?

Posted: Wed Oct 12, 2022 8:26 pm
by Cal_Gary
Well done Murf-that looks awesome!
Gary

Re: M37 snatch block?

Posted: Fri Oct 14, 2022 3:56 am
by Murf
Tks Gary.
I do love my big TiP Tools blast cabinet :wink:

Re: M37 snatch block?

Posted: Sun Oct 16, 2022 8:45 pm
by Cal_Gary
Yeah I'll bet! I still have my Harbor Freight set up-never used to this point.
Gary

Re: M37 snatch block?

Posted: Tue Oct 18, 2022 4:03 am
by John Mc
How small a diameter
Snatch block can you use without damaging the cable, significantly shortening its life, or turning the cable into something resembling a curly pig’s tail?

I have a Harbor Freight snatch block, but have never
Used it with my M37 winch - I’m concerned the diameter is a bit on the small side. On the other hand, the diameter of the self-releasing snatch block I use with the logging winch on my tractor is not much bigger, and I use 10mm (3/8”+) swaged wire rope on that all the time without any problems.

Re: M37 snatch block?

Posted: Tue Oct 18, 2022 4:40 am
by Elwood
John Mc wrote: Tue Oct 18, 2022 4:03 am How small a diameter
Snatch block can you use without damaging the cable, significantly shortening its life, or turning the cable into something resembling a curly pig’s tail?

I have a Harbor Freight snatch block, but have never
Used it with my M37 winch - I’m concerned the diameter is a bit on the small side. On the other hand, the diameter of the self-releasing snatch block I use with the logging winch on my tractor is not much bigger, and I use 10mm (3/8”+) swaged wire rope on that all the time without any problems.
Sheave diameter is dependent on wire rope diameter, construction, and application. There are tables online from the various wire rope manufacturers and distributors that give minimum sheave diameters.

As the sheave diameter decreases, strain and wear on the wire rope increases.

For the M37 winch, I would be very reluctant to use a pulley with a sheave diameter less than six inches.