720 loader information needed

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   I have a loader for the allis 720. It's not the ark model but the original version. If anyone has one I would really appreciate some information. I need the retracted, extended, and stroke dim. and didn't write down the dim. I replaced the original ones with Magister cylinders which was the biggest mistake. BEWARE magister cylinder rods are mild steel. After 4 hours and 400.00 bucks later the rods for the tilt bent! I know these cylinders weren't the exact dim. as the original but were within about 1/2" difference. The lift works but because of the rod material I can expect to replace them later down the road. Any help would be thankful. Thank you and God bless. 
Phil 

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Phammy Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 17 May 2021 Location: Barnum, MN Points: 12	Post Options Post Reply Quote Phammy Report Post Thanks(0) Quote Reply Topic: 720 loader information needed Posted: 01 Aug 2025 at 7:17am
	I have a loader for the allis 720. It's not the ark model but the original version. If anyone has one I would really appreciate some information. I need the retracted, extended, and stroke dim. and didn't write down the dim. I replaced the original ones with Magister cylinders which was the biggest mistake. BEWARE magister cylinder rods are mild steel. After 4 hours and 400.00 bucks later the rods for the tilt bent! I know these cylinders weren't the exact dim. as the original but were within about 1/2" difference. The lift works but because of the rod material I can expect to replace them later down the road. Any help would be thankful. Thank you and God bless. Phil

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ShaunE Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Access Joined: 03 May 2015 Location: Wisconsin Points: 53	Post Options Post Reply Quote ShaunE Report Post Thanks(0) Quote Reply Posted: 10 Aug 2025 at 3:04pm
	Pictures would say 1000 words. When you say you have the original version, depending on what brochure you happen to be looking at, you are referring to the Ark 600, 700 or Danco SV40 or SV41. In addition to that, there was also a Brantly variant & quite possibly a Johnson. Allis Chalmers put their name across the front bolster of the Ark models, but didn't manufacture them.

Phammy Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 17 May 2021 Location: Barnum, MN Points: 12	Post Options Post Reply Quote Phammy Report Post Thanks(0) Quote Reply Posted: 8 hours 44 minutes ago at 7:59am
	Sorry it took so long. I've been very busy to get things done before the snow flies. Here are some pictures of the loader. I have done some modifications but that just involves the hydraulic system. The cylinders in the pictures show the Magister cylinders as I mentioned above. The stroke for the bucket is questionable. All the cylinders I have come across won't work because I need the stationary end of the cylinder to be 1.75". The rod end could be any dimension under 2.375. However the stationary end must clear the mounting brackets. Like an idiot I had already auctioned off the original cylinders. But I do know they didn't have any manufacturer name or model number. I built this about 25 years ago from Allis chalmers prints. If you require more pictures please let me know. I would be very grateful for any assistance. Thank you and God bless. Phil Hammitt Edited by Phammy - 8 hours 38 minutes ago at 8:05am

Phammy Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 17 May 2021 Location: Barnum, MN Points: 12	Post Options Post Reply Quote Phammy Report Post Thanks(0) Quote Reply Posted: 7 hours 21 minutes ago at 9:22am
	If you need more pictures please let me know. Thank you and God bless. Phil Hammitt Edited by Phammy - 7 hours 18 minutes ago at 9:25am