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5.40  TROUBLE SHOOTING GUIDE FOR 2515 MODELS

11

Symptoms

Possible Cause

Remedies

Reduced/low

1. Clogged hydrophobic

1. Replace the filter

vacuum

     filter.

     following directions in 

     this manual. (Section 4.12)

2. Regulator improperly 

2. Set regulator vacuum

     set.

     level following operating

     instructions.

3. Air leak.

3. Check the tubing and

     connectors for possible leaks.

     Attach, tighten or replace.   

4. Jar lid gasket not

4. Be sure the jar lid and 

     secured to jar.

    gasket fit tightly on the jar.

Device does

1. Power cord not 

1. Plug in the power cord.

not start

     plugged in.
2. Defective switch.

2. Contact your service

     center or distributor. (See back page)

3. Vacuum still exists

3. Disconnect tubing from the

     in system.

     collection jar to 

     release vacuum.

    Reconnect tubing and

    turn on the device.

Gauge reads

1. Faulty gauge.

1. Contact your service

incorrectly

    center for repair (410) 712-4100.

Device runs but

1. Gauge tubing not 

1. Check the tubing and

gauge reads

     connected or is  

     connectors for possible leaks.

zero

     leaking.

    Attach, tighten or replace.   

Device stops

1. Device overheated.

1. Unplug device and allow to 

running during

     cool for 10 minutes. Plug in

use

     and restart.

2. Blown fuse or circuit

2. Replace fuse or reset

     breaker in household

     breaker.

     circuit.
3. Low voltage to device.

3. Too many motor operated

    appliances on same circuit.

Summary of Contents for WELCH 2511

Page 1: ...76 8800 Fax 847 677 8606 Technical Support E Mail gdwelchvacuum gardnerdenver com Web Page www welchvacuum com Printed in USA Part No 642783 Approval Agency s Warning Not recommended for pumping acid...

Page 2: ...e failure to observe the instruction could result in damage to the equipment associated equipment and process These units confirm to the SI International system of units of measurement The following s...

Page 3: ...uum Connection 2 80 Vacuum Gauges 2 90 Traps Section 03 OPERATION 3 10 Starting Procedures 3 20 Leak Detection 3 30 Operating Pressure Range 3 40 Shutdown Procedures Section 04 MAINTENANCE 4 10 Mainte...

Page 4: ...etermining maximum air pressure for that tool or attachment applies to model 2511 only Be sure to properly identify intake and discharge before using pump See Section 2 50 WARNING Do not fill the coll...

Page 5: ...s involving a semi flexible surface such as a bench top they help to isolate noise and eliminate creeping All Aspiration Filtration Vacuum Systems should be mounted on a horizontal plane 2 40 Pump Loc...

Page 6: ...rge pressure to be set between atmospheric and the maximum possible for the pump model Model 2511 is equipped with a pressure port Note Adjusting the vacuum regulators will affect the performance of t...

Page 7: ...and off until the fault is corrected 2 63 Classification And Symbol Glossary 2 70 Vacuum Connection 2 71 For best results Welch recommends the length of the tubing between the pump and the chamber be...

Page 8: ...t vacuum level by turning the regulator knob counter clockwise to increase vacuum or clockwise to decrease vacuum Note This procedure should be performed each time you use this device 3 12 Cleaning Th...

Page 9: ...e The pump employs a non lube piston and cylinder No maintenance is necessary for the bearings All bearings are sealed and permanently lubricated Lubrication should not be attempted The units are buil...

Page 10: ...See Section 2 80 5 20 PRESSURE PROBLEMS 5 21 Leakage and contamination are the general causes of problems associated with poor pressure To operate at maximum efficiency a system must be thoroughly cl...

Page 11: ...2 Defective switch 2 Contact your service center or distributor See back page 3 Vacuum still exists 3 Disconnect tubing from the in system collection jar to release vacuum Reconnect tubing and turn o...

Page 12: ...5 2515C 75 2515C 76 Free Air Displacement CFM L min 1 2 34 1 0 28 1 2 34 Maximum Vacuum 27 2 in Hg Ultimate Vacuum 70 Torr 93 mbar Dimensions L x W x H in cm 14 8 x 8 3 x 10 Inches 37 5 x 21 x 25 5 cm...

Page 13: ...at have been used for any period however short will be repaired under this warranty rather than replaced The warranty is effective for one year from the date of original purchase when 1 The warranty c...

Page 14: ...8 11 Model 2515B 75 2515C 75 2515C 76 COLLECTION JAR LONG TUBING APPLICATION TUBING HYDROPHOBIC FILTER PUMP ON OFF SWITCH REGULATOR KNOB VACUUM GAUGE SHORT TUBING 14...

Page 15: ...15 8 12 Model 1475K 20 COLLECTION JAR LONG TUBING APPLICATION TUBING HYDROPHOBIC FILTER SHORT TUBING...

Page 16: ...10 REPAIR KITS 9 11 Repair Kit for Model 2515 Service Seal Gasket Description Kit Kit 2515K 01 2515K 02 Connecting Rod Assembly 1 1 Handle Screw 2 2 Head Screw 3 4 Head O Ring 4 1 1 Valve Plate Assem...

Page 17: ...el Adapter for dispoable tips w o ejector 1475K 03 Rubber Adapter for Pasteur pipettes 1475K 04 8 Channel Adapter for dispoable tips w ejector 1475K 05 Adapter S S 150mm 1475K 06 4 Channel Adapter S S...

Page 18: ...ription Welch Kit 115V 60Hz Maintained on off footswitch 1430A 115V 60Hz Variable on off footswitch 1430B 90 230V 50 60Hz Variable on off footswitch with IEC connections 1430C 18 Description Welch Kit...

Page 19: ...19...

Page 20: ...g the details below UK Office Keison Products P O Box 2124 Chelmsford Essex CM1 3UP England Tel 44 0 330 088 0560 Fax 44 0 1245 808399 Email sales keison co uk Please note Product designs and specific...

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