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420b cat backhoe

crocker14 ยท 2017-01-30 21:07

not going in forward again .Last summer I changed the fnr selector because it wasn't going in forward and then it started working fine .Before I did That I changed the transmission oil and filter and their wasn't any sign of any cuttings in the filter.I replaced the oil with TDH fluid instead of cat tranny oil .now when the machine is being used for about 30 minutes and gets warm it won't go in forward again.could the oil be the problem or the fnr selector ?

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