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Table of Contents
Troubleshooting
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Summary of Contents for NVE 304 Challenger Series
- Page 1 National Vacuum Equipment Owner’s Manual 304 Challenger Series Rotary Vane Vacuum Pumps Authorized NVE Distributor, Service & Repair Facility 120 – 10293 276 ST, Acheson, Alberta, Canada T7X 6A5 T: 780.962.1827 F: 780.962.1830 E: sales@fraserwoods.ca www.fraserwoods.ca...
- Page 2 Purchased from: __________________________ Serial Number: ____________________________ © 2015 National Vacuum Equipment, Inc. Revision: 1 (Released) April, 2015 No part of this manual may be reproduced without the written permission of National Vacuum Equipment, Inc. 2 | 304 Challenger Series www.fraserwoods.ca...
- Page 3 IMPORTANT INFORMATION FOR INSTALLING PUMP 304 CHALLENGER SERIES PUMPS AERIAL VIEW Clockwise Counter - Clockwise Rotation Rotation 304 Challenger Series | 3 www.fraserwoods.ca...
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Page 4: Table Of Contents
Pump doesn’t turn ���������������������������������������������������������18 No vacuum ��������������������������������������������������������������������19 System Troubleshooting ������������������������������������������������19 Making a vacuum tester ������������������������������������������������20 Parts Breakdown 304 Parts Diagram ���������������������������������������������������������21 304 Challenger Series Vacuum Pumps Parts List ���������22 Vane Replacement 304 Vane Replacement Instructions ������������������������������26 4 | 304 Challenger Series www.fraserwoods.ca... -
Page 5: Introduction
Today, NVE has full service machine, fabrication and powder-coating shops complete with CNC-controlled production equipment designed for close tolerance work� The company has a highly trained staff, all of whom are dedicated to quality�... -
Page 6: Limited Warranty
30 days of sale to end user for pump sales to be considered warrantable� All pumps received for warranty consideration must retain the original NVE serial number tag� 2� The two (2) year period shall begin the day the product is shipped... - Page 7 12� NVE is not responsible for pump coupling tightness or alignment� Customer needs to inspect periodically to ensure proper alignment and to check tightness of set screws� Any items found to be defective after delivery to the end user that...
- Page 8 • Product must be returned to NVE intact for inspection before warranty will be honored� • Product must be returned to NVE freight prepaid in the most economical way� • Credit will be issued for material found to be defective upon our inspection, based upon prices at the time of purchase�...
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Page 9: 304 Challenger
• Properly adjusted pressure relief and vacuum relief valves should also be incorporated in the system between the secondary shutoff and the pump� • The relief valves should be set to where the pump operates at a maximum temperature of 375 degrees Fahrenheit� 304 Challenger Series | 9 www.fraserwoods.ca... -
Page 10: Pressure And Vacuum Settings
3� Once obtained the desired pressure, screw down the lock nut “D” 4) Screw down the protection cap and fix it using the rings “E” situated on the valve body and on the cap 4. Screw down the protection cap and fix it using the rings “E” situated on the valve body and on the cap 10 | 304 Challenger Series www.fraserwoods.ca... -
Page 11: Drive System
The oil pump is easily adjustable from 5-24 ounces per hour� • It is the responsibility of the installer to ensure proper vacuum and pressure settings and RPM� 304 Challenger Series | 11 www.fraserwoods.ca... - Page 12 Hex or Flat Seated in Head Screw Groove Depending on Unit Jam Nut 4� Tighten adjustment screw (CW) until it seats on the cam� (Do not force!) Springs Located Over Screws Seated Against Flat of Cam 12 | 304 Challenger Series www.fraserwoods.ca...
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Page 13: Adjusting Factory Oil Settings
Adjusting Factory Oil Settings Continued NVE 4 Port Oil Pump Adjustment Rate Chart Tested at 1100 RPM Turns From Bottom Ounces Per Hour 7.25 6.75 4.75 4.25 304 Challenger Series | 13 www.fraserwoods.ca... -
Page 14: Operating Instructions
• Do not operate your pump for extended periods of time at vacuum levels which cause the pump to exceed 375 degrees Fahrenheit exhaust gas temperature� Guards • Make certain all guards are in place prior to running your pump� Think Safety! 14 | 304 Challenger Series www.fraserwoods.ca... -
Page 15: Recommended Lubricant
3� Texaco Regal R & O 68 4� Chevron GST 5� Penzoil Penzabell 68 T�O� * NVE ISO 68 and NVE ISO 150 Oils are recommended for the Challenger series vacuum pumps. Challenger Vacuum Pump Oil is sold by the case, (6) gallons per case. -
Page 16: Maintenance
4 vane slots, it’s time to replace the vanes� • Vanes should be replaced in sets and it is always a good idea to have an extra set of vanes on hand for emergencies� 16 | 304 Challenger Series www.fraserwoods.ca... -
Page 17: Cold Weather Operation
• If the pump is frozen, thaw it out by moving the truck into a heated building� Avoid freezing problems • You can avoid freezing problems by putting a small amount of diesel fuel into the pump at the end of the day� 304 Challenger Series | 17 www.fraserwoods.ca... -
Page 18: Troubleshooting
Causes: • Oil pump set too rich • Leaving pump under vacuum between jobs Problem: Pump doesn’t turn Causes: • Broken vane or bearing • Pump is frozen • Problem in the drive train 18 | 304 Challenger Series www.fraserwoods.ca... -
Page 19: No Vacuum
If the pump checks out okay, check the vacuum level at the secondary, then the primary shutoff� Keep working your way back until you find the problem. For rebuild instructions please visit our website at www.natvac.com or call us at 800-253-5500. 304 Challenger Series | 19 www.fraserwoods.ca... -
Page 20: Making A Vacuum Tester
2� Drill and tap a 1/4” NPT thread in the pipe cap� 3� Assemble the flange, nipple, pipe cap and vacuum gage� 4� Remove a flange from the four-way valve on your pump� 5� Start the pump and confirm the location you have chosen to test from is at vacuum� 6� Using the existing O-ring, fasten the testing flange to your pump� 7� Start your pump and read the vacuum level on the gauge� 20 | 304 Challenger Series www.fraserwoods.ca... -
Page 21: Parts Breakdown
304 Challenger Series | 21 www.fraserwoods.ca... -
Page 22: 304 Challenger Series Vacuum Pumps Parts List
NVE 304 Challenger Series - Parts List ITEM PART NUMBER DESCRIPTION 120-001-001 HOUSING 304 120-003-006 ENDPLATE 304 DRIVE 120-003-007 ENDPLATE 304 NON-DRIVE 120-004-304 GASKET ENDPLATE 304 120-005-003-D ROTOR 304 CW 120-005-003-S ROTOR 304 CCW 120-006-184 KEY 0.25” X 0.25” X 1.875”... - Page 23 NVE 304 Challenger Series - Parts Continued ITEM PART NUMBER DESCRIPTION HHCS - 1/4-20 UNC X 0.75 HEX HEAD CAP SCREW - 1/4-20 UNC X 0.75 HHCS - 3/8-16 UNC X 0.75 HEX HEAD CAP SCREW - 1/4-20 UNC X 0.75 HHCS - 5/16-18 UNC X 1.00...
- Page 24 24 | 304 Challenger Series www.fraserwoods.ca...
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Page 25: Vane Replacement
National Vacuum Equipment Vane Replacement Challenger Series Rotary Vane Vacuum Pumps www.fraserwoods.ca... -
Page 26: 304 Vane Replacement Instructions
RBINE OIL. RT THE NEW VANES INTO THE ROTOR. SERT THE NEW VANES INTO THE ROTOR. 26 | 304 Challenger Series www.fraserwoods.ca P a g e \ E n g i n e e r i n g \ P r o j e c t s \ 1 3 0 1 P o r t a J o h n P u m p \ C a d D a t a \ 3 0 4... - Page 27 15) REMOVE THE ¼” PINS AFTER ALL BOLTS HAVE BEEN TORQUED DOWN. tightened down. E THE ROTOR SPINS FREELY IN THE 16) MAKE SURE THE ROTOR SPINS FREELY IN THE 14. Make sure the rotor spins HOUSING. freely in the housing. 304 Challenger Series | 27 www.fraserwoods.ca...
- Page 28 Authorized NVE Distributor, Service & Repair Facility 120 – 10293 276 ST, Acheson, Alberta, Canada T7X 6A5 T: 780.962.1827 F: 780.962.1830 E: sales@fraserwoods.ca www.fraserwoods.ca All product names, trademarks and registered trademarks are property of their respective owners.
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