4-pin measurement indicates 87% worn
Grousers 39% worn
Idlers 50% worn
Need diameters to get roller and bushing readings (caliper measure).
Need track link number (usually cast into link) to assess.
i got top rollers for under £100 each at this place ,was about 3/4 years ago
they will also have all the other parts
http://www.itstrac.co.uk/
MrNoo, I do have a couple of good track chains and some good sprockets that might be some use, but a bit more detail would help like track plate bolt Dia' bolt pat or track link No' and amount of links (track plate count up) I am not far from you at J1 M50, on the rollers thing worn out is scrap with new replacements the way to go.
tctractors
Thanks guys, I will get measuring/counting and will get back to you!
Right, 36 links/pads each side, part number 5K9458H on links closest to track pads
Lower roller diameters
Left starting at front of machine
198mm, 225mm, 210mm, 200mm, 200mm
Right side
190mm, 200mm, 197mm, 200mm, 201mm
16" pads with what 1/2" bolts
Bushes measured at 30 degrees to track chain facing forward and rearward are as follows
46.86mm 47.69mm
46.87mm 48.50mm
46.02mm 47.15mm
And measured at 90 degrees to track chain, i.e. vertically down from tack pad is 46.09mm
regards Chris
Rail height = 40% worn
Track rollers @ 200mm = 25% worn
Bushings @ 48mm = 70-90% worn depending on 0.12 or 0.19 in. depth of hardening.
5K9457-58 uses 9/16" bolting
Didn't see a diameter for carrier rollers.
[quote="Old Magnet"]Rail height = 40% worn
Track rollers @ 200mm = 25% worn
Bushings @ 48mm = 70-90% worn depending on 0.12 or 0.19 in. depth of hardening.
5K9457-58 uses 9/16" bolting
Didn't see a diameter for carrier rollers.[/quote]
Sorry forgot to put them up
Carriers are 115mm one side
135mm on the other.
Many thanks for your help Old Magnet. So I would guess the best course of action would be to get the chains re pinned/rebushed and weld on a pair of sprockets and possibly a pair of carrier rollers. I guess as long as the bearings are ok on the bottom rollers, leave them as they are, maybe move them around to even up the wear on them? Front idlers at 50% should be ok or are they worth getting refurbed.
regards Chris
Carrier rollers are shot.
Sounds about right on your assesment and fix.
If you can weld it is common to build up rollers and idlers with weld
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