# UlVac 100 Notes and Rebuild Parts List #publish >Navigation: [[Ulvac G-100 Series Rotary Vacuum Pump]], [[Vacuum Technology MOC]] ## Video https://www.youtube.com/watch?v=OZWPvSt_S7g ## Shaft seals see [[shaft seals]] for more info **TC-17-40-9** ## Tips - With a blank/plug installed on inlet, run the pump for 10-20 minutes to warm up oil. Oil and contaminates will drain much better and you will have less of mess later. - Drain with drain side tipping down to avoid oil running back under the pump and making a mess. - Pour small amounts of clean oil/flushing fluid in inlet, then briefly run pump to flush out inside of casing. - Separate the motor from pump housing before rest of disassembly. ## Minor Kit > Recommended Vendor https://www.globaloring.com/ > Spec recomendations: > - Viton (standard is FKM, other can work) or Nitrile > - All P, G, S, V numbers in refference to JIS B2401 O-Ring Sizes. See https://www.globaloring.com/jisb-2401-metric-orings-2/ for more info. > - Durometer 75 for orings. | Description | Qnty | Notes | | -------------------- | ---- | ----------------------------------------------------- | | O-ring S-24 | 1 | | | O-ring S-55 | 1 | | | O-ring P-8 | 1 | | | O-ring P-12 | 1 | | | O-ring P-24 | 1 | | | O-ring V-160 1 | 1 | | | Oil Seal HTC-17-40-9 | 1 | I have used the more common 17-40-10 with no problem. | | Oil Seal SC-17-30-7 | 1 | | | Oil Seal SC-15-30-7 | 1 | | | Teflon Tube O.D.1/8 | 1 | Used for gas ballast valve. Usually gets hard/clogged with use and sometimes breaks when you open the pump. Easy swap. | ## Major Kit | Part | Qnty | | --------------------- | ---- | | Vane Spring φ2.4×24 | 8 | | No. 1 Vane 62×15.5×t6 | 2 | | No. 2 Vane 20×14×t6 | 2 | | Oil Level Gauge | 1 | | Bearing 6203 Open | 1 | | Bearing 6002 Open | 1 | | Sleeve SN1/8 | 2 | | Middle Pin φ2×φ3.4×27 | 4 | | Coupling | 1 |