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Antique Caterpillar Machinery Owners Club
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DISCUSSION
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D4 6u track pad bolt part number
D4 6u track pad bolt part number
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Posts: 66
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Thank you received: 11
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3 years 11 months ago #223075
by Reisingerweld
Hey guys I've done a few searches and looked through the parts book to my machine which shows 3 different possible bolt and nut combinations for the track pads on my D4 6U, I pulled an old bolt out and it measures about 9/16x1-3/4. Does any one know the part number for that size track bolt and nut to match?
D4 6U9483SP
Hyster D4N winch
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3 years 11 months ago - 3 years 11 months ago #223080
by Rome K/G
Cat lists a 1 5/8" long bolt 4K7038 and 7K2017 nut. Yours was probably a hex nut and lock washer, Cat now uses the shorter bolt with the square nut now.
Last edit: 3 years 11 months ago by
Rome K/G.
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Posts: 66
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Thank you received: 11
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3 years 11 months ago - 3 years 11 months ago #223091
by Reisingerweld
Ok next odd ball question I saved a set of freshly rebuilt track chains and pads from the scrap yard but those like the book say only have 31 links/pads.....my old track on my machine actually have 32, both are 4 roller side frames....and my tensioner is not all the way out was there a different option for say a larger idler or somthing that allows for 1 extra link/ pad??
Just went to re- measure the bolt I took out it is definitely 1-3/4 long and had a square nut on it with no lock washer.
D4 6U9483SP
Hyster D4N winch
Last edit: 3 years 11 months ago by
Reisingerweld. Reason: Added the extra about bolt again
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Thank you received: 620
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3 years 11 months ago #223092
by Rome K/G
Ag tractors had smaller idlers than tractors equipped with a dozer arrangement. Are the bolt threads flush with the nut or out past when assembled?
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Thank you received: 11
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3 years 11 months ago #223124
by Reisingerweld
Some are flush some are out, whoever did the last "rebuild must have saved some of the older bolts that would use a lock washer.
I appreciate your help Rome, now to find 2 new pads to make a set for my tracks
D4 6U9483SP
Hyster D4N winch
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Antique Caterpillar Machinery Owners Club
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DISCUSSION
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D4 6u track pad bolt part number
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