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Home My WebLink About231-17 RESOLUTION113 West Mountain Street Fayetteville, AR 72701 (479) 575-8323 Resolution: 231-17 File Number: 2017-0606 BLOCKER & WALLACE SERVICE, LLC: A RESOLUTION TO AUTHORIZE A SERVICE CONTRACT WITH BLOCKER & WALLACE SERVICE, LLC IN THE TOTAL AMOUNT OF $31,355.18 FOR THE REPAIR OF TWO MECHANICAL BLOWER UNITS USED AT THE WEST SIDE WATER RESOURCE RECOVERY FACILITY BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY OF FAYETTEVILLE, ARKANSAS: Section 1: That the City Council of the City of Fayetteville, Arkansas hereby authorizes Mayor Jordan to sign a service contract with Blocker & Wallace Service, LLC in the total amount of $31,355.18 for the repair of two mechanical blower units used at the West Side Water Resource Recovery Facility. PASSED and APPROVED on 11/7/2017 Attest: Sondra E. Smith, City Clerk Treasurer %%J 1111 t Irrr/� �K,l TR rrr' 6- :[ -'AYE TTEV1LLF=;'u` Page 1 Printed on 11/8/17 City of Fayetteville, Arkansas 113 West Mountain Street Fayetteville, AR 72701 (479) 575-8323 Text File File Number: 2017-0606 Agenda Date: 11/7/2017 Version: 1 Status: Passed In Control: City Council Meeting File Type: Resolution Agenda Number: A. 9 BLOCKER & WALLACE SERVICE, LLC: A RESOLUTION TO AUTHORIZE A SERVICE CONTRACT WITH BLOCKER & WALLACE SERVICE, LLC IN THE TOTAL AMOUNT OF $31,355.18 FOR THE REPAIR OF TWO MECHANICAL BLOWER UNITS USED AT THE WEST SIDE WATER RESOURCE RECOVERY FACILITY BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY OF FAYETTEVILLE, ARKANSAS: Section 1: That the City Council of the City of Fayetteville, Arkansas hereby authorizes Mayor Jordan to sign a service contract with Blocker & Wallace Service, LLC in the total amount of $31,355.18 for the repair of two mechanical blower units used at the West Side Water Resource Recovery Facility. City of Fayetteville, Arkansas Page 1 Printed on 111812017 City of Fayetteville Staff Review Form 2017-0606 Legistar File ID 11/7/2017 City Council Meeting Date - Agenda Item Only N/A for Non -Agenda Item Tim Nyander 10/16/2017 Utilities Director/ Utilities Department Submitted By Submitted Date Division / Department Action Recommendation: Staff recommends approval of a service contract with Block & Wallace Service LLC to repair two (2) Gardner Denver mechanical blowers used at the West Side Water Resource Facility (WRRF) in the amount of $31,355.18. 5400.730.5800-5414.00 Account Number 02069.1 Project Number Budgeted Item? Yes Does item have a cost? Yes Budget Adjustment Attached? No Previous Ordinance or Resolution # Original Contract Number: Comments: Budget Impact: Water/Sewer Fund Plant Pumps and Equipment - W.W.T.P. Current Budget Funds Obligated Current Balance Item Cost Budget Adjustment Remaining Budget Project Title $ 531,386.00 $ 196,017.32 1 $ 335,368.68 $ 31,355.18 $ 304,013.50 Approval Date: V20140710 CITY OF FAYETTEVILLE 6 s°r'i4 ARKANSAS MEETING OF NOVEMBER 7, 2017 TO: Mayor and City Council THRU: Don Marr, Chief of Staff Water, Sewer, and Solid Waste Committee Tim Nyander, Utilities Director FROM: Greg Weeks, Wastewater Treatment Mayo Miller, Wastewater Treatment DATE: October 9, 2017 CITY COUNCIL MEMO SUBJECT: Approval of a service contract with Block & Wallace Service LLC to repair two (2) Gardner Denver blowers used at the West Side Water Resource Facility (WRRF) in the amount of $31,355.18 RECOMMENDATION: Staff recommends approval of a service contract with Block & Wallace Service LLC to repair two (2) Gardner Denver mechanical blowers used at the West Side Water Resource Facility (WRRF) in the amount of 31,355.18. BACKGROUND_: The West Side WRRF is designed to treat 10.0 million gallons of wastewater per day. Organics in the wastewater are treated by microorganisms called activated sludge. As the microorganisms multiply, a portion of the sludge must be removed to maintain the proper balance between number of microorganisms and the available organics. Waste Activated Sludge (WAS) is removed from the treatment process, dewatered, then sent to the Biosolids Management Site (BMS) for further treatment to be sold as a Class A Biosolid fertilizer. Before WAS is sent to the BMS, it is stored in one of two tanks. During this storage time, the WAS is mixed by mechanical blowers to prevent the material from going septic. The WAS storage tanks have a total of five blowers that can be used for mixing the sludge. Two of the 10 - year -old blowers experienced unknown internal failures requiring disassembly, evaluation, and repair. DISCUSSION: The two mechanical blowers were sent to Blocker & Wallace Service LLC, a certified Gardner Denver repair facility, for diagnosis and repair. After disassembly and inspection, it was found that the two units need repairs including but not limited to: seals, bearings, timing gears, minor machine work, etc. Mailing Address: 113 W. Mountain Street www.fayetteville-ar.gov Fayetteville, AR 72701 Because it was necessary to have the certified repair facility disassemble the units to determine the extent of hidden and unknown damage to equipment already purchased, a bid waiver and formal sealed bidding is not necessary according to Arkansas Procurement Law 86:99-99-203, Subsection 94 {EE) "hidden or unknown damages." City Administration recommends approving a contract for repair services with Blocker & Wallace Service LLC in the amount of 31,355.18, which includes tax, to repair the two units. BUDGET/STAFF IMPACT: Funds are available in the Wastewater Treatment Plant CIP — Plant Pumps and Equipment. Attachments: Repair Quotes BtOCKEIT5=1 MCe :-LLC Quoted To: Fayetteville WWTP 1500 North Foxhunter Rd. Fayetteville, AR 72701 QTY Item Repair Quote: 4 Cause of Failure: 1.00 Drive Rotor OD Drive Rotor OD: Bearing Ride- Rot Dr. Head Plate Interlobe Cond. Timming Gear Cond 9CDL Overhaul INPI Repair Details 1 WM77 Quote Date: Sep 12, 2017 Page: 1 Quoted By: Neil W. Brinkmeyer Neil@blockerandwallace.com Office: 901-274-0708 Fax: 901-278-4796 Description Blower Model: 96DL18 SN: S257453 Inadequate lubrication lead to premature bearing wear and a loss of internal operating clearances. The drive rotor OD is undersized due to product abrasion but it is within factory allowable tolerances and can be reused. The driven rotor OD is undersized due to minor abrasions but it is within factory allowable tolerances and can be reused. The drive and driven rotor bearing rides are within factory allowable tolerances and don't require repair.. The head plate surfaces have minor abrasions on the surface that can be removed with additional polishing. Slightly oversized above factory spec. and cannot be repaired -due the rotor design / profile. Will result in a minimal decrease in performance The timing gears have moderate backlash but are within factory allowable tolerances and can be reused. 9CDL Cycloblower Repair including a complete factory supplied INPRO oil seal overhaul kit. Assembled & tested by factory trained tech. (Estimate only). Details: A complete overhaul kit, Including, New timing gears, new oil sight gauges, lubrication fittings, oil sump breathers, sandblasting & polishing of all components, computerized dynamic rotor balancing, assembly by a factory trained technician, testing analysis under simulated load including bearing Amount I Job I 13965 13,750.001 13965 i Rotor OP's Bearing Rides: / bearing rid as - Gear p.nd bearingridcs Interlobe locations vibration analysis & performance results, motor amp draw. Decals prep & paint. Tax 1,340.63 Total 15,090.63 4 T. www.bIockerandwallace.com NOTICE: Un resolved Equipment for repair that is not approved for rebuild or replaced with a new or remanufactured unit may incccur a tear clown I in Tection fee and ma also be scrapped out /thrown away/ by Blocker & Wallace Service LLC after 90 days. - APPROVED BY: � DAfE: _ — BI]CER .. A I- LA��5 �C --- - __ LLC 11� r'� ,<3 Quote Date: Sep 12, 2017 Page: 1 Quoted To: Quoted By: Fayetteville WWTP Neil W. Brinkmeyer 1500 North Foxhunter Rd. Neil@blockerandwallace.com Fayetteville, AR 72701 Office: 901-274-0708 Fax: 901-278-4796 QTY Item Description Amount Job ID 1.001 Repair Quote: Blower Model: 9CDL18 SN: S257461 Cause of Failure An internal seal failure and bearing failure caused the unit of loose internal operating clearances and lock up Drive Rotor OD: The drive rotor OD is undersized due to minor abrasions but it is within factory allowable tolerances and can be reused. Drive Rotor OD: The driven rotor OD is undersized due to product abrasion but it is within factory allowable tolerances and can be reused. Bearing Ride - Rotor The drive and driven rotor gear end bearing rides are undersized below factory spec. and will require welding / machining to regain factory tolerances. Dr. Head Plate Cond Both head plates have moderate abrasions on the head plate surface, but can be reused with additional polishing Interlobe Cond.: The Timming Gear Cond The timing gears have moderate backlash caused by inadequate lubrication, but their are in . 9CDL Overhaul INPI Repair Details 1 9CDL Cycloblower Repair including a complete factory supplied INPRO oil seal overhaul kit. Assembled & tested by factory trained tech. Details: A complete overhaul kit, Including, New timing gears, new oil sight gauges, lubrication fittings, oil sump breathers, sandblasting & polishing of all components, computerized dynamic rotor balancing, assembly by a factory trained technician, testing analysis under simulated load including bearing vibration analysis & performance results, motor amp draw Decals re & mint 14, 820.00 13966 13847 Rotor 4R"s Bearing Rides: 06— and ..`..—. bauring noes — . -,� Gear —0 be—ing,ide, Interlobe locations 4ti/Z 1 yyV • p p P Tax j 11444.55 i Total 16 264.55 www.blockerandwallace.com l —NOTICE: Unresolved Equipment for repair that is not approved for rebuild or replaced with anew or remanufactured unit may incccur a tear down/ inspection fee and may also be scrapped out /thrown away/ by Blocker & Wallace Service LLC after 90 days. r IIPROVED BY: