Dunham Bush Screw Chiller

[mkthelegend]

Ibelieve these are Toshiba Screws. Need info on changing slides or what have you. No model# available on chiller but it has 4 comps. and 20CFMs.

[Robert1078]

The compressors ao that Machine if it has 4 compressor should be Hitachi if it is and older machine. Hanbell if a new one. Need to go to D/B in West Hartford. 1-800 DUN-Bush. If they are ole Hitachi it is not worth repairing. The slide sleave gets egg shaped and you are done.
Robert 1078

[batterup]

are these vertical or horizontal screws hitatchis are typically part of bohn and are horizontal screws and most of the time o rings around the slide valve leak by dumping into the suction side not expensive to fix just time consuming

[ChillerWisperer]

Ibelieve these are Toshiba Screws. Need info on changing slides or what have you. No model# available on chiller but it has 4 comps. and 20CFMs.

Contact AC Component Specialists in Marshfield, MO. They'll set you up with everything you need. Changing the slide piston o-rings is fairly easy. The hardest part is getting the oil separator housing off and out of your way enough to work on the piston. I have a cylinder hone I would use to smooth out any scoring on the walls before reassembly. Had pretty good results doing that. Also be careful when removing and installing the teflon ring for the piston/slide valve rod.

http://accscompressor.com/aboutus.html