Xylem GOULDS AC8743 Скачать руководство пользователя страница 11 | Manualshive

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Содержание GOULDS AC8743

Страница 1: ...AC 8300 Series BASE MOUNTED CENTRIFUGAL PUMP INSTALLATION OPERATION AND MAINTENANCE INSTRUCTIONS INSTALLER PLEASE LEAVE THIS MANUAL FOR THE OWNER S USE INSTRUCTION MANUAL AC8743...

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Страница 4: ...tions When used the safety alert symbol means ATTENTION BECOME ALERT YOUR SAFETY IS INVOLVED FAILURE TO FOLLOW THE INSTRUCTIONS MAY RESULT IN A SAFETY HAZARD Your Series 8300 pump should have the safe...

Страница 5: ...nsulation is required Failure to follow these instructions could result in serious personal injury or death or property damage Mechanical Safety WARNING Unexpected Startup Hazard Disconnect and lockou...

Страница 6: ...he installation must be evaluated to determine that the Net Positive Suction Head Available NPSHA meets or exceeds the Net Positive Suction Head Required NPSHR as stated by the pump performance curve...

Страница 7: ...y of false brinelling of the bearings LOCATION The pump should be installed as near the suction supply as possible but no less than five suction diameters with the shortest and most direct suction pip...

Страница 8: ...studs extending through holes in the base plate b By adding or removing shims under the base level and plumb the pump shaft and flanges c Draw anchor nuts tight against base and observe pump and motor...

Страница 9: ...alignment should be made by shimming driver only Alignment should be made at operating temperatures WARNING Unexpected Startup Hazard Disconnect and lockout power before servicing Failure to follow t...

Страница 10: ...GUARD INNER GUARD LOCATE SUPPORT ARM BETWEEN OUTER GUARD ENDS ALIGN THE ARM WITH HOLES IN THE OUTER GUARD AND HOLES IN THE SADDLE BRACKET NUT MOTOR SADDLE BRACKET ATTACH TO MOTOR SADDLE THIS OPTION US...

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Страница 12: ...pump piping be sure to observe the following precautions Piping should always be run to the pump Do not move pump to pipe This could make final alignment impossible Both the suction and discharge pip...

Страница 13: ...length as direct as possible and never smaller in diameter than the pump suction opening If the suction pipe is short the pipe diameter can be the same size as the suction opening If longer suction p...

Страница 14: ...should be installed on the suction side of all pumps with a positive suction pressure for maintenance purposes Install gate valves with stems horizontal to avoid air pockets Globe valves should not b...

Страница 15: ...guards in place Failure to follow these instructions could result in serious personal injury or death and property damage CAUTION Seal Damage Hazard Do not run pump dry Seal damage may occur Failure t...

Страница 16: ...ugal pumps can be operated clockwise or counterclockwise when viewed from the coupling end of the pump If you wish to reverse the suction and discharge nozzles this can be accomplished with the same p...

Страница 17: ...15 Figure 11 Correct Relationship of Impeller and Casing 13 5 1 9 15 7 3 11 16 8 4 12 14 6 2 10 Figure 12 Main Joint Bolts...

Страница 18: ...r by plugging inlet and putting line under pressure A gauge will indicate a leak with a drop of pressure 9 Speed too low See item 5 10 Discharge head too high See item 4 11 Suction lift too high See i...

Страница 19: ...15 32 Suction inlet not immersed enough See item 16 33 Liquid heavier in either viscosity or specific gravity than allowed for Use larger driver Consult factory for recommended size Test liquid for vi...

Страница 20: ...connected to both the suction and discharge should exclude outside liquid Therefore it should not be necessary to go beyond the bearings stuffing box and coupling when servicing the pump BEARING LUBRI...

Страница 21: ...o service until the sealing faces have been replaced or relapped Relapping is generally economical only in seals two inches in size and above CLEANING WITHOUT DISMANTLING PUMP A short section of pipe...

Страница 22: ...20 SERVICE Figure 13 Mechanical View...

Страница 23: ...th the hubs or by loosening the Allen set screws and sliding the hubs back on the shafts Remove the coupler hubs from the pump shaft For non spacer couplers loosen set screws and slide flanges back on...

Страница 24: ...he pump by starting on the outboard end the end opposite the coupling This end locks the rotating element into position in the casing 1 Press the stationary mechanical seal seat into the gland plate u...

Страница 25: ...s of grease 8 Using gloves slide the heated bearing onto the shaft against the shaft shoulder See Figure 19 Figure 19 Installing Bearing 9 Install the locknut and lockwasher on the outboard end of the...

Страница 26: ...lf of the casing 5 Tap the stuffing boxes with a soft headed hammer to break the seal between the stuffing box and lower casing half and lift the rotating element out of the lower casing Rotating elem...

Страница 27: ...g gaskets can be ordered to minimize the amount of trimming 1 Before assembling the rotating element prepare the casing and install the casing gaskets to the parting line 2 Clean the gasket surfaces o...

Страница 28: ...r in the gland plates The lip seals should face away from the mechanical seal seats See Figure 18 12 Lubricate and roll the O rings into the grooves in each gland plate 13 Press the gland plates into...

Страница 29: ...he bearing housing to the stuffing box with the capscrews Leave the grease relief plug out of the outboard housing until the pump is run for a minimum of two hours and the system has reached its norma...

Страница 30: ...cal service requiring a minimum of down time a complete or quick change rotating element is recommended For normal service with repairs to be made in the field the following parts are recommended for...

Страница 31: ...A C Pump representative The representative will need the following information in order to provide assistance 1 Complete nameplate data of the pump and motor 2 Suction and discharge pipe pressure gaug...

Страница 32: ...nd we help people use water efficiently in their homes buildings factories and farms In more than 150 countries we have strong long standing relationships with customers who know us for our powerful c...

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