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17. VP1000 VANE & ROTOR SERVICE & REPLACEMENT GUIDE Caution Disconnect power before beginning service. 1. The work area must be clean and have sufficient lighting. Notch 2. Disconnect the vapor piping connected to the IN and OUT ports of the VP1000 cover assembly. Figure 1 3. Remove the four Allen head screws and lock washers that secure VP1000VRC the pump cover assembly to the pump housing and remove the Carbon Rotor cover carefully. (Obsolete) Caution Use a spill cloth when removing the cover, as there • may be some gasoline inside the pump cavity. Shaft Key 4. Carefully turn the rotor assembly by hand until the shaft key notch is at the 12 o'clock position. (See Figures) Vane 5. Remove the rotor, vanes and shaft key from the pump housing. Note: Place your hand or a container under the rotor while removing. Do not use any sharp objects that would scratch the surfaces of the pump cavity, pump shaft, rotor, or vanes. 6. Rotate the shaft by hand. If the shaft does not rotate freely, the entire vacuum pump needs replacement(p/n VP1000-5 or Notch RVP1000-5). Figure 2 7. If the rotor and vanes are cracked, chipped, excessively worn or VP1000VRC-P excessively dirty, the rotor and vanes should be replaced because Enhanced Carbon cleaning will not remedy these conditions (p/n VP1000VRC-G, Fiber Rotor VP1000VRC-P or VP1000VRC). (limited availability) 8. If there is no visible damage, use a lint-free cloth with isopropyl alcohol to clean the rotor and vanes. 9. Using a lint-free cloth with isopropyl alcohol, thoroughly clean: the Shaft Key inside of the pump ring and rear of the pump cavity, the rotor shaft, and the inside of the pump cover. Vane 10. Reposition the shaft (if necessary) so that the shaft key notch is in the 12 o'clock position. Install the cleaned original or new shaft key onto the shaft. 11. Carefully install the cleaned original or new rotor onto the shaft followed by the cleaned original or new vanes into the rotor. Note: The rotor assembly should slide on to the shaft easily, without excessive force. (Rotors and vanes are reversible) Notch 12. Lightly lubricate and install the new O-Ring for the pump housing. Figure 3: Note: Do not allow any lubricant to get inside the pump housing. VP1000VRC-G 13. Install the pump cover using the four Allen head screws and lock Enhanced washers removed in step 3 and cross tighten. Glass-Fiber Rotor Note: Use caution when sliding the pump cover over the O-Ring _D seal to prevent cutting or tearing. 14. Re-connect the vapor piping to the IN and OUT ports of the pump �—Shaft Key cover assembly that was removed in Step 2. 15. Re-apply power. Test for normal operation. (See VP1000 Vacuum Vane� Performance Test Procedure) 8-20 CARE Approved IBM 8-Gilbarco Encore 300 9 500 Series-Executive Orders VR-261 and VR-202