pishta
I know I'm right....
I borrowed one of these 1/3 HP units. Its on a little stand and it has a large suction hose and a small bypass hose that goes into a can/bucket of paint. Its all motor with a little machined block that has the inlet and outlet ports on it. Anyways, this thing builds NO suction. I pulled the block apart and found it has a plastic diaphragm in there that only vibrates, no noticeable up and down movement. I took the block off and found that the eccentric is actually cycling a little pushrod about 1/4" stroke but it does not seem to make the diaphragm that it contacts move. Im stumped. Am I missing a spacer or something? The last user swore it worked fine when they put it in storage and I have no reason to believe they took it apart. Its full of clear oil under the diaphragm and seems to run fine, it just never creates any suction, and Im not even sure how it would generate 2800psi as the plastic diaphragm is made of a rigid plastic, not even flexible..Any house painter out there? My neighbor saw my F'n with this and wheeled over his big boy and I shot all the eves in about 20 minutes, love it! Would like to get this smaller unit working so I can shoot the rest of the house. His may not be available as he uses it on jobsites almost all the time. Thanks. This is the diaphragm service unit but I cant see this as the piston to build 2300 psi, its just plastic and the white seems to be captive between the pump body and the block....
