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SECTION 7: WARRANTY

7.10  WARRANTY

Please Read Carefully Before Operating This Welch® Vacuum Pump

Unpacking

Inspect the pump carefully.  If any damage has occurred, fi le claim with the freight carrier immediately.  

Save the shipping container for carrier to inspect.
 
Operating Pump
Refer to the Instruction/Operation Manual for all information to properly operate and maintain the pump.

Warranty
The Welch Vacuum product is warranted to be free from defects, in material and workmanship.  The 
liability of Gardner Denver Welch Vacuum Technology, Inc. under this warranty is limited to servicing, 
adjusting, repairing or replacing any unit or component part which in the judgement of Welch Vacuum 
has  not  been  misused,  abused  or  altered  in  any  way  causing  impaired  performance  or  rendering  it 
inoperative.   No other warranties are expressed or  implied.  The  method of executing this warranty: 
servicing, adjusting, repairing or replacing shall be at the discretion of Welch Vacuum.  Vacuum pumps 
that  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 card has been completed and returned.

2.    

The product with RMAis returned to the factory or other designated service centers, freight 

 

 

prepaid.

3. 

The product, in our judgement, is defective through no action or fault of the user.

If the product has become defective through misuse, abuse, or alteration, repairs will be billed regardless 
of the age of the product.  In this event, an estimate of the repair costs will be submitted and authorization 
of these charges will be required before the product is repaired and returned.

To reduce the additional charges and delays either within or outside of the warranty period, contact Welch 
Vacuum at (847) 676-8800 for a return authorization number. Products without a return authorization 
number will be returned by our receiving department.  Before shipping, pack the pump properly and 
insure it against loss or damage. Mark the outside of the carton and the packing slip with the return 
authorization number.  Pumps damaged due to improper packaging are the customer’s responsibility.

Summary of Contents for WELCH GEMINI 2050

Page 1: ...mited by compatibility with pump materials of construction Always verify vapor chemical compatibility prior to pump use and utilize proper cleaning methods to remove chemical residuals from the pump a...

Page 2: ...ction could result in injury or death to people CAUTION Cautions are found where failure to observe the instruction could result in damage to the equipment associated equipment and process These units...

Page 3: ...02 INSTALLATION 2 10 Introduction 2 20 Unpacking 2 30 Pump Location 2 40 Application Connection Section 03 OPERATION 3 10 Starting Procedures Applications Quali cation 3 20 Leak Detection 3 30 Pump Cl...

Page 4: ...part of the body 1 18 Use only in well ventilated areas 1 19 Never block pump exhaust Serious injury can result from pressure build up 1 20 To Reduce Risk Of Electrical Shock 1 21 Do not disassemble...

Page 5: ...urrounding temperature remains between 10 C and 40 C 50 F and 104 F Always check to insure the location chosen is protected from direct or indirect moisture contact 2 32 Electrical Source GEMINI pumps...

Page 6: ...port Pressure build up in the pump will cause pump to stall 2 42 Tubing Connection Use non collapsible tubing for all vacuum connections Connect to pump inlet using 3 8 10mm ID tubing keeping tubing...

Page 7: ...ons as well as certain alcohols ethanol isopropanol and carboxylic acids acetic acid It is important to check for pump material compatibility with potential fumes that can be drawn off your vacuum app...

Page 8: ...mBar GEMINI Start Up After verifying that your vacuum application is correctly con gured per Section 2 Installation turn on the pump On Off switch Welch recommends running the pump for a few minutes...

Page 9: ...r vapors through the pump for 5 minutes to clean pump contact surfaces GEMINI System Shutdown Procedures After use Welch recommends the pump be run for about 2 minutes disconnected from the vacuum pro...

Page 10: ...ower Failure If pump does not turn on the power adapter can be replaced Contact your Welch representative for information 10 SECTION 6 SPECIFICATION 6 10 SPECIFICATION TABLE 5 10 5 11 5 20 5 21 Parame...

Page 11: ...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 card has been comp...

Page 12: ...ca Gardner Denver Thomas Inc Welch Vacuum Technology 5621 W Howard St Niles IL 60714 USA Phone 847 676 8800 Fax 847 677 8606 Email gdwelchvacuum gardnerdenver com Asia Rietschle Thomas Asia Paci c Ltd...

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