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MF 165 Diesel power steering

john carriere When turning the steering wheel to one side it turns really easy, but the other turn it is armstrong steering. When the setting screw is set all to one side or the other it works well one side but not the other. If set in the middle then it is hard turning both ways. Everything except the power steering pump has been redone.
Geoff John the main problem with this steering system is either wear or/and adjustment. Starting from the steering wheel have someone rock the steering wheel left and right and check for any wear/play in the linkage or steering box. Next check is the vertical shaft that runs through the front cradle. this a famous for wearing as the graese nipple is regularly neglected. the drop arm at the bottom of the shaft is prone to wearing on the splines (either or both splines on the bottom of the vertical shaft or the drop arm) the bushes the vertical shaft runs in are prone to wear as well.
If all is well there the next point to consider is adjustment...this is a common problem as well, slacken the large nut on top of the adjusting screw and disconnect the adjusting link between the spool control valve and the front casting, screw the main adjusting screw in and then out 7 full turns and then refit the link, if you have to adjust the length slightly for the pins to just glide through the holes do so. the likage should now be set to the initial setting for the steering to work properly in both directions, if it is still tight in either directions you can screw the large adjusting screw another 1/4--1/2 turn and try again, you should by now have steering , don't forget to tighten up the locknut.....Geoff

raywag just had my mf 321 in shop filter was completely cogged they flushed system cleaned pump pump only needed cleaning all rings and parts were ok hope this helps

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