therabbittree Posted December 7, 2010 Share Posted December 7, 2010 I've been working on a '96 Mack Rd688 it has a power steering reservior with 3 ports. 1 large and two small. The two small ports are the returns. One small port is in the bottom center, it flows into the filter in the reservoir. The second is angled at a 45 and flows into the reservoir. My question is which return goes where? Currently I have the center port (into the filter) returning from the pump, & the angled port returning from the steering box. After filling the reservoir and running it, it has no power steering. It has been awhile since I tore the system apart. I should have wrote down a diagram. I've replaced the pump mounting flange o ring, filter, and all the lines etc.Thanks.Deo Quote Keep on keeping on... Link to comment https://www.bigmacktrucks.com/topic/16771-power-steering-line-s/ Share on other sites More sharing options...
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