| Cylinder | End Plate | Rotor | Pinning |Cylinder Machining |

| Vane | Assembled Cylinder | Finished RP 750 D |

Some steps from the remanufacturing process are pictured below.

First in the process is dissasembly, inspection, and measurement.  A detailed quote is sent to the customer, showing parts and labor required, item prices, and the total price.  When the purchase order is received from the customer, all parts are cleaned.  Parts & materials are ordered.  Existing parts are refurbished if needed.  New parts are manufactured.  The pump is assembled, tested, checked for leaks (helium leak test), painted, and finally prepared for shipment.

MHV's experience with vacuum pumps has allowed us to reverse engineer this model and find sources for parts that used to be bought from the OEM (original equipment manufacturer).

Cylinder The main cylinder of the pump on the boring mill, with gauge stock in place, for setting clearance between cylinder and rotor.  The main bore is elliptical, and this one was in nice shape. Back to Top
End plate End plate, after honing of the bronze bushing. Back to Top
Rotor Rotor, after installation of a new shaft stub.  The stub was machined from a forging, and ground to fit the bronze bushing in the end plate. Back to Top
Pinning the end plates The rotor, end plates, and main cylinder are assembled, and the end plates are pinned, to maintain proper clearance between rotor and cylinder. Back to Top
Cylinder machining An "eyebrow" is cut into the cylinder to aid in sealing of the rotor. Back to Top
Vane fitting The resurfaced vane is inserted into the rotor. Back to Top
Assembled cylinder Cylinder assembly, ready to be assembled to base.  New valve springs and disks have been installed. Back to Top
Finished Beach-Russ RP 750 D pump Painted and ready to go. Back to Top