background image

9

Limited 1 Year Warranty

We warrant that products of our manufacture will be free of defects in material and workmanship under normal use and 
service for twelve (12) months after notice of owner’s acceptance, but no greater than twenty-four (24) months after receipt 
of shipment, when installed and maintained in accordance with our instructions.
This warranty gives you specifi c legal rights, and there may also be other rights which vary from state to state. In the 
event the product is covered by the Federal Consumer Product Warranties Law (1) the duration of any implied warranties 
associated with the product by virtue of said law is limited to the same duration as stated herein, (2) this warranty is a 
LIMITED WARRANTY, and (3) no claims of any nature whatsoever shall be made against us, until the ultimate consumer, 
his successor, or assigns, notifi es us in writing of the defect, and delivers the product and/or defective part (s) freight prepaid 
to our factory or nearest authorized service station. Some states do not allow limitations on how long an implied warranty 
lasts, so the above limitation may not apply. 

THE SOLE AND EXCLUSIVE REMEDY FOR BREACH OF ANY AND ALL 

WARRANTIES WITH RESPECT TO ANY PRODUCT SHALL BE TO REPLACE OR REPAIR AT OUR ELECTION, F.O.B. 
POINT OF MANUFACTURE OR AUTHORIZED REPAIR STATION, SUCH PRODUCTS AND/OR PARTS AS PROVEN 
DEFECTIVE. THERE SHALL BE NO FURTHER LIABILITY, WHETHER BASED ON WARRANTY, NEGLIGENCE OR 
OTHERWISE.

 Unless expressly stated otherwise, guarantees in the nature of performance specifi cations furnished in 

addition to the foregoing material and workmanship warranties on a product manufactured by us, if any, are subject to 
laboratory tests corrected for fi eld performance. Any additional guarantees, in the nature of performance specifi cations 
must be in writing and such writing must be signed by our authorized representative. Due to inaccuracies in fi eld testing 
if a confl ict arises between the results of fi eld testing conducted by or for user, and laboratory tests corrected for fi eld 
performance, the latter shall control. 

RECOMMENDATIONS FOR SPECIAL APPLICATIONS OR THOSE RESULTING 

FROM SYSTEMS ANALYSES AND EVALUATIONS WE CONDUCT WILL BE BASED ON OUR BEST AVAILABLE 
EXPERIENCE AND PUBLISHED INDUSTRY INFORMATION. SUCH RECOMMENDATIONS DO NOT CONSTITUTE A 
WARRANTY OF SATISFACTORY PERFORMANCE AND NO SUCH WARRANTY IS GIVEN.

This warranty shall not apply when damage is caused by (a) improper installation, (b) improper voltage (c) lightning 
(d) excessive sand or other abrasive material (e) scale or corrosion build-up due to excessive chemical content. Any 
modifi cation of the original equipment will also void the warranty. We will not be responsible for loss, damage or labor cost 
due to interruption of service caused by defective parts. Neither will we accept charges incurred by others without our prior 
written approval.
This warranty is void if our inspection reveals the product was used in a manner inconsistent with normal industry practice 
and/or our specifi c recommendations. The purchaser is responsible for communication of all necessary information 
regarding the application and use of the product. 

UNDER NO CIRCUMSTANCES WILL WE BE RESPONSIBLE FOR 

ANY OTHER DIRECT OR CONSEQUENTIAL DAMAGES, INCLUDING BUT NOT LIMITED TO LOST PROFITS, LOST 
INCOME, LABOR CHARGES, DELAYS IN PRODUCTION, IDLE PRODUCTION, WHICH DAMAGES ARE CAUSED 
BY ANY DEFECTS IN MATERIAL AND\OR WORKMANSHIP AND/OR DAMAGE OR DELAYS IN SHIPMENT. THIS 
WARRANTY IS EXPRESSLY IN LIEU OF ANY OTHER EXPRESS OR IMPLIED WARRANTY, INCLUDING ANY 
WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE

.

No rights extended under this warranty shall be assigned to any other person, whether by operation of law or otherwise, 
without our prior written approval.

RETURNED GOODS

RETURN OF MERCHANDISE REQUIRES A “RETURNED GOODS AUTHORIZATION”.

CONTACT YOUR LOCAL CRANE PUMPS & SYSTEMS, INC. DISTRIBUTOR.

Products Returned Must Be Cleaned, Sanitized, Or Decontaminated As Necessary 
Prior To Shipment, To Insure That Employees Will Not Be Exposed To Health Hazards 
In Handling Said Material. All Applicable Laws And Regulations Shall Apply.

Summary of Contents for DEMING 3906 Series

Page 1: ...ms reserves the right to change product without prior written notification 420 Third Street 83 West Drive Bramton Piqua Ohio 45356 Ontario Canada L6T 2J6 Phone 937 778 8947 Phone 905 457 6223 Fax 937 773 7157 Fax 905 457 2650 www cranepumps com Form No 119998 Rev B Series 3906 DEMING DEMING INSTALLATION OPERATION MAINTENANCE MANUAL End suction Centrifugal Pumps DISCONTINUED Parts may NOT be availa...

Page 2: ...nd discharge openings DO NOT insert fingers in pump with power connected Always wear eye protection when working on pumps Make sure lifting handles are securely fastened each time before lifting DO NOT operate pump without safety devices in place Always replace safety devices that have been removed during service or repair Secure the pump in its operating position so it can not tip over fall or sl...

Page 3: ...YOU BEGIN Motor driven pumps are carefully aligned on sub base before shipment However after they are placed upon the foundation and sub base is bolted down the alignment must be rechecked and in MOST CASES it will be found necessary to carefully realign the unit Quite often a noisy pump is due to pump and motor not being properly aligned IN SUCH CASES WE DISCLAIM ALL RESPONSIBILITY FOR PROPER WOR...

Page 4: ...s very important that the suction and discharge pipes line up naturally with the pump DO NOT pull pipes into position with flange bolts Support pipes independently of the pump to eliminate all strain on the pump casing Select discharge pipe size so velocity is under 8 feet per second Avoid sharp changes in pipe sizes 7 After pipes have been connected to pump check alignment at drive coupling Corre...

Page 5: ...s and remove the four cap screws holding pump to sub base Drain pump by removing drain plug 4 in the bottom of the pump casing 1 CLEAN AND INSPECT ALL PARTS Extreme care should be exercised in keeping the parts clean Special precautions should be taken to keep ball bearings dirt free while in or out of the pump The dirt will damage the ball bearings thus shortenting the trouble free service life o...

Page 6: ...5 Brace support head 11 and tap lightly on end of shaft 2 Shaft and impeller can now be removed as a unit Slinger 6 seal gland 32 seal gland gasket 29 seal 31 and spacer sleeve 35 may now be removed from the support head 11 6 To remove bearings 24 and 26 remove screws 15 and bearing cover 14 By pulling on bearing collar 13 bearing 24 can be removed Insert a bar into the coupling end of the support...

Page 7: ...mall i Foot valve not immersed deep enough k Wrong direction rotation 3 Not Enough Pressure a Air in water b Mechanical defects c Impeller diameter too small d Speed too low 4 Pump Works for a while then Quits a Leaky suction line b Suction plugged c Suction lift too high over 15 feet check with vacuum gauge d Air or gas in liquid 5 Pump Takes Too Much Power a Speed too high b Liquid either viscou...

Page 8: ...rease Fitting 13 THrust Bearing Collar 14 Bearing Cover 15 Self Tapping Screws 16 Shake Proof Washers 17 Hex Nuts 18 Name Plate 19 Drive Screws 20 Bearing Order ITEM No DESCRIPTION 21 Dust Plug 22 Hex Nuts 23 Drip Pan with Stuffing Box only 24 Ball Bearings 25 Set SCrews 26 Ball Bearings 27 Pipe Plug 28 Packing Seat Washer 29 Seal Gland Gasket 31 Seal 32 Seal Gland 35 Spacer Sleeve 36 Pipe Plug 37...

Page 9: ... conducted by or for user and laboratory tests corrected for field performance the latter shall control RECOMMENDATIONS FOR SPECIAL APPLICATIONS OR THOSE RESULTING FROM SYSTEMS ANALYSES AND EVALUATIONS WE CONDUCT WILL BE BASED ON OUR BEST AVAILABLE EXPERIENCE AND PUBLISHED INDUSTRY INFORMATION SUCH RECOMMENDATIONS DO NOT CONSTITUTE A WARRANTY OF SATISFACTORY PERFORMANCE AND NO SUCH WARRANTY IS GIV...

Page 10: ...CRANE PUMPS SYSTEMS INC 420 THIRD STREET PIQUA OHIO 45356 U S A ...

Reviews: