Overhaul cylinders on DuAl loader

Hayfarmer

Well-known Member
I got the outer end out. It took a pin spanner wrench and ended up building one out of a horse shoe. Inside is what Dual calls a spacer that is also threaded into the cylinder walls and has 2 holes for pin spanner or gland wrench, but it sets 1/2 inside end of cylinder. Has anyone rebuilt one of these? Messicks had seal kit I just can't get it apart. I have seen a couple DuAl wrenches on ebay, neither complete, but doesn't look like pins are long enough on them to get to inner spacer either.
 
Update: got the spacer block loose finally, in the way I didn't want to do it, hammer and punch. Looks like it was the way it was done before. from shape of the holes. would still like to find a pin scanner that would work but so far my home made one made from a horseshoe with a 5 mm bolt off each end has worked the best. I got a gland wrench from amazon that is really stout but jaws a a little thick for these cylinders. Want to rebuild at least one more cylinder, a bucket one, so hope it will go better than this one.
 
You had the right idea with the horse shoe. I tell people to flame cut something that looks along the line of a sling shot or the letter "Y". Usually out of 1/4" or 3/16" plate and weld a piece of pipe on it for a handle. The best thing to use for the pins is socket head cap screws. Even if you have to grind the threads off the end to make it fit the spanner holes. Put them thru the wrench and hold them in place with a nut on the back side. Keep the screws as short as possible, yet able to still reach into the spanner holes.
 
thanks Rick for info. It doesn't help that cylinder shaft is 2 1/4 and bore of cylinder is 3". holes seem to be 7/32 but might have been 1/4 originally. Got this cylinder back together but have at least one more to do. will try the socket head cap screws
 

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