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Summary of Contents for yellow jacket BULLET DCX NH3
- Page 1 BULLET DCX NH Vacuum Pump ® Operation and Maintenance Manual Model: 93539 Rev.A...
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Page 2: Table Of Contents
Warranty and Service....................11 Important Notices to Purchaser Check for damage immediately. The CARRIER ALONE is responsible for handling and settling your claim. Ritchie Prior to shipment, all YELLOW JACKET ® Engineering will cooperate in assessing BULLET DCX NH Vacuum Pumps are ®... -
Page 3: Features Of Your Vacuum Pump
Lower operating temperature to improve efficiency and vacuum. Pump Exhaust Doubles Heavy Duty Steel Handle as Oil Fill Port For well-balanced carrying & lifting Use YELLOW JACKET oil for ® assurance of a clean, fast job. Male Pipe Pump Intake Lightweight BLDC Motor... -
Page 4: The Purpose Of The Bullet ® Dcx Nh
The Purpose of the BULLET DCX NH Design ® The BULLET DCX NH Pump is a 2-stage ® ro tary vane design (Fig.1) that increases efficiency and speeds pump down to 25 microns. The pump lowers the internal pressure of a refrigeration system until moisture boils into a vapor. -
Page 5: Important Steps Of Initial Start-Up
6. When turning pump off, open intake 2. Remove oil fill cap on pump cover. Fill fitting to break vacuum just prior to with YELLOW JACKET Vacuum Pump ® shut-off. Oil until oil level is even with oil level line. -
Page 6: Dual Voltage Motor Power Conversion
If you think there is excessive mois- 8. Use a SuperEvac System I or II to ™ ture, blow out the AC&R system with dry decrease vacuum nitrogen wherever possible. This reduces time by over 50%. the amount of contaminants that must These systems be “pulled”... -
Page 7: Basic Troubleshooting
Basic Troubleshooting • Your BULLET DC Pump features a Four Most Common Comments on ® heavy-duty high torque motor for cold Pump Return Paperwork: weather starting, but dirty oil makes 1. “Will not pump”. This usually means starting more difficult, causing unnec- essary wear on your unit. -
Page 8: Diagnostic Chart
Diagnostics Chart Condition Pump Area Possible Problem Solution Dirty oil Flush 1 to 3 times Drive coupling or set screw loose Repair or replace Quiet pump Bent or broken exhaust valve Repair or replace Pump not oiling Call factory Vanes not functioning Call factory Poor Pump dropped... - Page 9 Diagnostics Chart continued Condition Pump Area Possible Problem Solution Worn motor Replace motor Motor areas Losse motor bolts Tighten bolts Drive coupling Adjust/replace coupling Flush and replace oil Unusually Dirt, low, improper oil Tighten Noisy Air leaks: Replace/put on oil 1.
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Page 10: Replacement Parts
Replacement Parts Description Part # Description Part # PUMP OIL COVER MOUNTING BODY 1. Complete Cover 92966 13. Complete Mount Body 92969 2. Handle with Screw 92941 14. Shaft Seal 93354 3. Exhaust Filter Assembly 93386 15. O-ring for Gas Ballast 93398 4. -
Page 11: Warranty And Service
You will receive personal help to determine if the problem can be solved without sending your pump to the factory and taking it out of service. Ritchie Engineering Company, Inc. YELLOW JACKET Products Division ® 10950 Hampshire Avenue South Bloomington, MN 55438-2623 USA E-mail: custserv@yellowjacket.com...
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