Info needed: IH 7' sickle mower 505
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Category: Allis Chalmers
Forum Name: Farm Equipment
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URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=17834
Printed Date: 06 Feb 2025 at 7:58am
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Topic: Info needed: IH 7' sickle mower 505
Posted By: Rich-MN
Subject: Info needed: IH 7' sickle mower 505
Date Posted: 06 Sep 2010 at 11:11pm
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Picked up , what I believe is a IH 7' sickle bar mower # 505 at an auction some time back and after hooking it up to my D-17 IV 3 point I am having problems of sorts with the raising and lowering of the bar. Noticed that a portion of the mower lifting mechanism has a "hook" on it and was wondering what or if there was supposed to be a spring etc. Any help would be appreciated..especially a drawing or photo of the mower...Thanks in advance...Rich MN |
Replies:
Posted By: firebrick43
Date Posted: 07 Sep 2010 at 11:07am
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I have a 120 mower which is basically the same with a trailing wheel and uses a hyd cylinder to raise/lower. Here is a scan for the spring, mounts in the same position on your mower. The spring however has no function in that actual lifting of the bar. It helps take the weight off the bar while mowing. The manual says that it should be adjusted (there is a long square headed bolt that screws into the end of the spring with a lock nut) so it takes approximately 85 pounds to lift the inner shoe by hand when the mower is lowered. When unhooking the mower, you lift the arm, and remove the spring pin that retains the springs bolt head and then lower the mower. The spring shouldn't be stored with tension on it. As far as you having lifting problems, which type of lift do you have? One type is a cable , pulley, and a bracket that mounts to the drawbar, so as the lift the 3 point lift arms it pulls the bell crank and lifts. You adjust this style by adjusting the length of the cable. You should be able to just barely slip in the pin to the drawbar when the mower is lowered. You probably have this style of lift. The other style has a roller on the left side that contacts the 3 point lift arm as its raised and lowered. This style has a hook that catches a chain that is attaches to the bell crank. You adjust it by adding/dropping links at the hook on the roller mechanism O, on greasing the wobble box, numbers 14 and 15. Do NOT over grease. You grease it every 30 hours, with 3/8 oz of grease. My grease gun does this in about 10 strokes but they vary. Over greasing will damage the wobble box and you don't want to rebuild it, trust me. If you take care of it, it will last a long time.  .
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Posted By: Rich-MN
Date Posted: 07 Sep 2010 at 6:58pm
| Thanks a lot Jay...appreciate the help on this... the picture of the unit (120) seems to be the same kind of a lay out as that 505.. its sitting up at the farm ( 120 miles) right now and I will look it over ( you sketch) to see what kind of hook up I have according to your info.. I'm running it on my 3 point with a aftermarket draw bar. I do not understand the "lifting cables" you had mentioned.. Again thanks a ton....Rich MN |
Posted By: firebrick43
Date Posted: 08 Sep 2010 at 10:25am
Hope this helps, sorry for my poor sketch. They just give you a general idea, as it has been awhile myself from hooking/using one. I prefer the semi mount myself shown in the first picture, especially for smaller tractors, but the 3point should do fine on your d17 if its factory 3 point. After market 3 points can have issues as the lift links are not solid so they cant hold down the left side of the 3 point. 
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