MF34A Industrial Loader control valve

I've tried this on the MF forum and no luck so far, but maybe here ...
Wondering how to get the caps off at the bottom of the loader valve body. Boom lift function won't work unless the cap under that valve is heated. Sadly, we currently have no heated shop to park it in and it's needed for snow clearing. With 2-3 minutes of the heat gun pointed at it, the action is fully restored. We figure there must be water accumulated down there and thought the cap could be removed and dumped. However it won't come loose from the valve inside and I'm leery of pulling the valve out completely. Parts diagram is unclear but looks like there might be a set screw at the bottom that holds the valve, though it didn't look like there was one when looking at the cap itself. The cap looks like a 3 piece part. Do the body parts thread together? Is there an allen head screw in the bottom that ties it together? The complete valve section doesn't easily want to drop out with the cap and I'm afraid of something getting out of place further up in the bore if I do pull it out completely. It's a hard push to get it back in when just dropped down partially. Hopefully the pics will upload. Thanks for any and all help. MK

I have a MF30E with the same loader. The engineering drawing for this assembly shows a separation (assembly point) at the base, but I wouldn't separate it if I were you. The side scematic shows flow through the valve from the loader hose to the opposite spool. If the oil has water in it, its probably freezing in the valve port from the exposed hose line. There is NO DRAIN. I would change to a thinner oil.

Those small tips on the bottom of the cap assy's
are actually filters. We sold these and would
take these caps off.The filter p/n is 1086 541m1
but those caps will come off. I no longer have a
service manual but should come off by removing
those sockethead screws. Something is "jammed" or
?. I should have said that the filters are inside
those tips on the caps. Chuck

Permatran 821 is the ONLY oil to use, unless you want to rebuild the shuttle AND have really craooy hydraulics. frequent oil changes keep the water condensation out. Probably why MF isn t a popular construction machine. BTW I still like my 30B alot.

Permatran 821 is the ONLY oil to use, unless you want to rebuild the shuttle AND have really crappy hydraulics. frequent oil changes keep the water condensation out. Probably why MF isn t a popular construction machine. BTW I still like my 30B alot.

Thanks for the advice. We'll have to try and do something as the lift spool just won't work if it's below freezing. MK