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Thread: Made to measure replacement gas struts

  1. #1
    Senior Member Footsfitter's Avatar
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    Made to measure replacement gas struts

    Had to replace the rear window gas struts on our MT755B Challenger, one had lost all gas and the other could be pushed home with a finger tip. OE cylinders from Agco came at 105 each so with no google results for non genuine items using the cat part number I turned to a company who have been mentioned in the past on both here and the BFF Facebook page- SGS Engineering.



    Heres the completely gasless one,







    You can just make out the vital 0050N or 50newtons printed on the casing, this gives the pressure/pushing effort required







    Here the special quick detach end that fixes to the glass/handle has been unscrewed off the cylinder (new genuine cylinder would include this) It reveals that there is an 8mm thread attached to the 15mm cylinder with a 6mm piston rod on which is mounted a plastic joint to take a 10mm ball mount.







    Close up of the fancy quick release end that turns the back window into an emergency exit if the need ever arises







    Here's the new cylinder with its predecessor, SGS have a contact form you can fill out with all the details of your cylinder especially the open and closed centres from ball to ball armed with the info they come back pretty quick with what they can offer, in our case their 15mm cylinders have 6mm studs so it would either be using the 22mm tube shown here or we would have to do a bit of machining of the fancy quick release end to fit a 15mm tube, in the event there was plenty of room for the slightly tubbier tube, it also means a sturdier 10mm rod onto which a new metal end is mounted







    Here we are, QRC end fitted to the new cylinder tube with the rod end hidden under the plastic cab trim. The new cylinders are charged to produce the same 50N force and once fitted it was a gentle closing of the glass to check all the dimensions were right, it shuts correctly and now opens/holds open correctly too. SGS had made them exactly right





    The time line went, send enquiry to SGS in evening, couple of emails back and forth the next morning, quote for replacements received and paid for by midday, cylinders arrive 1st thing the next morning!

    Oh, and 2 new cylinders @29.75 each + 7.50 carriage making a total of 67, saving 147!!

    I was very impressed with the whole process as was our drillman now his window opens with gusto, stays rigidly open and closes nicely
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  2. #2
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    Re: Made to measure replacement gas struts

    sounds good

    It would be good to keep everyone posted on how these "replacements" stand the day to day life of a working machine - maybe a 6 or 12 month update?

  3. #3
    Senior Member Footsfitter's Avatar
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    Re: Made to measure replacement gas struts

    Quote Originally Posted by Ironhead View Post
    sounds good

    It would be good to keep everyone posted on how these "replacements" stand the day to day life of a working machine - maybe a 6 or 12 month update?

    Well they seem a keen company to work with, plus this statement-

    We make our struts here in the UK, and they come with next working day delivery and a free 2 year extended warranty.
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