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Recent content by Dyson excavating

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    Komatsu d39-21a issue

    Hello I’m new to the komatsu world and have a 2008 d39-21a dozer. great little finish dozer but sometimes when running (usually in reverse) it was kinda jump like you went to neutral or hit the brake just a split second. Does it in forward but not nearly as often. Have also noticed that mainly...
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