1958 310B Front Loader Valve

[RGV hay]

I have a Case front loader on a 1958 310B; the front loader ID plate reads Model Number 4032659, although I suspect that this may be the serial#. Its hydraulic pump is driven from the front of the engine. It has a Gresen Minneapolis FO, 2 spool loader valve with float. The bucket tipping spool has begun to bind up. I don't have the schematic or breakdown of this valve; therefore I need it or advice on how to disassemble the spool to check o-rings, springs or whatever may be binding.
 

[Case Nutty 1660]

this is from a 420B parts but should be the same as it's little brother the 310B cnt

 

[RGV hay]

Thank you for the breakdown. It appears to be the same as the 420B except it is upside down on the 310B, mounting under a horizontal plate. Would you happen to have the parts list? Thanks again!
 

[RGV hay]

Thank you for the reply; it appears to be the same as the 420B other than it is upside down on the 310B, attached to the underside of a horizontal plate. Would you happen to have the parts list? Thank you again!
 

[Case Nutty 1660]

here ya go cnt

 

[DKase]

Take the caps off the front end of the spools to start with. (opposite end as the handle) There is a screw in there with washers and a spring, I have seen the screws loose, and broken springs that will cause what you explained. Simple fix if that is the problem.
 

[RGV hay]

Thanks, I prefer simple. I'll post what's in there after the weekend.
 

[RGV hay]

Turned out to be grunge in and around the spring, more than likely from the missing rubber caps on the spring end of both spools. Thanks for the insight!
 

[RGV hay]

Thanks again; I went into the bucket tipping spool this afternoon and found grunge around the spring probably from the missing rubber caps which the pictorial brought to light. Works fine now, thanks!