itlldo1 Posted April 24, 2010 Share Posted April 24, 2010 Anyone have any experience rebuilding or repairing a cab jack? The unit that I have will release the latches, but won't raise the cab-sounds like its bypassing internally. Is there a rebuild kit or parts listing for these that is available? Thanks-Mike Quote Is it just me or did those buffalo wings taste like chicken? Link to comment https://www.bigmacktrucks.com/topic/13590-f-model-cab-jack-repair/ Share on other sites More sharing options...
theakerstwo Posted April 25, 2010 Share Posted April 25, 2010 make sure the cylinders ant by/passing inside first. Then start to check the jack. Quote glenn akers Link to comment https://www.bigmacktrucks.com/topic/13590-f-model-cab-jack-repair/#findComment-53738 Share on other sites More sharing options...
Speed Posted May 1, 2010 Share Posted May 1, 2010 make sure the cylinders ant by/passing inside first. Then start to check the jack. I'd also look at the bleed-down screw that you turn to let the cab back down; I found a chunk of crud keeping it from sealing on a hoist ram recently,effectively bypassing to where it wouldn't pick up weight,but would raise the arm empty. I took the screw out,used compressed air to blow the crap out of the valve seat,and smoothed the facing on the screw that touches the seat when the valve's closed a little with fine grit emery cloth. Works awesome now! Speed Quote "Remember-ANY Gun Control is Unconstitutional!"<!--sizeo:3--><span style="font-size:12pt;line-height:100%"><!--/sizeo--><i><b>MACK-E Model Registry # 36</b></i><!--sizec--></span><!--/sizec--><a href="http://www.nvabatetravel.com/"target="_blank">http://www.nvabatetravel.com/</a> Link to comment https://www.bigmacktrucks.com/topic/13590-f-model-cab-jack-repair/#findComment-54157 Share on other sites More sharing options...
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