440 reverser

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gregjo1948
350 crawler
350 crawler
Posts: 1000
Joined: Mon Aug 30, 2010 5:58 am
Location: Newark Valley,NY,USA

440 reverser

Post by gregjo1948 » Sat Oct 14, 2017 5:23 am

Does a reverser on a 440 have a clutch(s) or is it just gears?
Thanks, gregjo1948
JD 350B diesel 6way blade, Case 580B Loader/backhoe, Farmall 504 high crop w/ flail boom mower, International 404 , International 284 diesel w/belly mower, 1972 Ford F600 dump truck, Galion 3-5 roller, Allis Chalmers D17, 1620 Ford

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Stan Disbrow
350 crawler
350 crawler
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Joined: Fri Jul 15, 2005 3:13 pm
Location: Raleigh, NC

Re: 440 reverser

Post by Stan Disbrow » Sat Oct 14, 2017 6:48 am

Hi,

Two clutch packs. One for forward, which locks the spyder gears up so that the output shaft spins in the same direction as the input shaft. One for reverse which unlocks the spyder gears and they make the output shaft spin backwards from the input shaft.

The clutch packs look a lot like what is used for the master clutch in motorcycles. The spyder gears look like the ones at the center of a differential in an axle. Not the same parts as anything else, this is just so you can visualize them. ;)

Stan
There's No Such Thing As A Cheap Crawler!

Useta Have: '58 JD 420c 5-roller w/62 inside blade
Useta Have: '78 JD350C w/6310 outside blade
Useta Have: '68 JD350, '51 Terratrac GT-25
Have: 1950 M, 2005 x495, 2008 5103 (now known as 5045D)

User avatar
gregjo1948
350 crawler
350 crawler
Posts: 1000
Joined: Mon Aug 30, 2010 5:58 am
Location: Newark Valley,NY,USA

Re: 440 reverser

Post by gregjo1948 » Sun Oct 15, 2017 4:24 am

Thanks Stan. I saw a 440 on Craigslist that said after running a while, a clutch would start slipping. The post said, not sure if it was reverser clutch or main clutch. I suppose, if it slipped in both directions, it would likely be the main clutch. Otherwise, both the reverser clutches would have to be slipping. Is there any adjustment for the reverser clutches.
gregjo1948
JD 350B diesel 6way blade, Case 580B Loader/backhoe, Farmall 504 high crop w/ flail boom mower, International 404 , International 284 diesel w/belly mower, 1972 Ford F600 dump truck, Galion 3-5 roller, Allis Chalmers D17, 1620 Ford

User avatar
Stan Disbrow
350 crawler
350 crawler
Posts: 2894
Joined: Fri Jul 15, 2005 3:13 pm
Location: Raleigh, NC

Re: 440 reverser

Post by Stan Disbrow » Sun Oct 15, 2017 5:17 am

Hi,

Yes, there are two barrel bungs on the sides of the reverser case. That is where the reverser clutches are adjusted. They run in a hydraulic oil bath but not under pressure, so I doubt there is heat related slipping like the later machines tend to have. These take a long time to get hot from conduction via the iron cases.

Stan
There's No Such Thing As A Cheap Crawler!

Useta Have: '58 JD 420c 5-roller w/62 inside blade
Useta Have: '78 JD350C w/6310 outside blade
Useta Have: '68 JD350, '51 Terratrac GT-25
Have: 1950 M, 2005 x495, 2008 5103 (now known as 5045D)

User avatar
gregjo1948
350 crawler
350 crawler
Posts: 1000
Joined: Mon Aug 30, 2010 5:58 am
Location: Newark Valley,NY,USA

Re: 440 reverser

Post by gregjo1948 » Mon Oct 16, 2017 4:20 am

Thanks Stan. With that new knowledge, I think I'll take the ride to check out this 440.
Regards, gregjo1948
JD 350B diesel 6way blade, Case 580B Loader/backhoe, Farmall 504 high crop w/ flail boom mower, International 404 , International 284 diesel w/belly mower, 1972 Ford F600 dump truck, Galion 3-5 roller, Allis Chalmers D17, 1620 Ford

User avatar
Stan Disbrow
350 crawler
350 crawler
Posts: 2894
Joined: Fri Jul 15, 2005 3:13 pm
Location: Raleigh, NC

Re: 440 reverser

Post by Stan Disbrow » Mon Oct 16, 2017 6:31 am

Hi,

Hopefully, it will be worth the trip. Personally, while looking for a decent JD350 around here for the past decade, there hasn't been even one worth the trip..... :(

Stan
There's No Such Thing As A Cheap Crawler!

Useta Have: '58 JD 420c 5-roller w/62 inside blade
Useta Have: '78 JD350C w/6310 outside blade
Useta Have: '68 JD350, '51 Terratrac GT-25
Have: 1950 M, 2005 x495, 2008 5103 (now known as 5045D)

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