PSB pump- pre start check questions

dep · Feb 27, 2013

My S77 with the PSB pump has ben sitting a few years and about to start her soon. Took off the pump timing window and pulled the control unit. It"s very stiff so I guess I"ll pull it apart tomorrow and clean it and the sleeve. Stuck the screwdriver into the control sleeve slot and it seems to move freely. How much movement should be in there? Didnt seem like much. Is this all I need to do to ensure hydraulic head wont break on me?

B A Star · Feb 27, 2013

   If it was my tractor and had been sitting for a while I would take the round cover off of the front of the timing gear cover.  Take out the two bolts that attach the gear to the drive hub on the pump shaft.  Now see if the injection pump turns freely, it more than likely will turn a little bit as you take out the last bolt, if it does you know the pump is not locked up.
   Now you will have to retime it, however that is better than buying another pump.

dep · Mar 1, 2013

Thank you that sounds like a good idea. I hard about the screwdriver test a few times but not in enough detail to know for sure.

PSB pump- pre start check questions

dep

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B A Star

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dep

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