HP 8-UB-1 28

UB USER INSTRUCTIONS ENGLISH 71569247 07-04

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FAULT SYMPTOM

Pump overheats and seizes

⇓Bearings have short life

⇓ Pump vibrates or is nois y

⇓ Mechanical seal has short life

⇓ Mechanical seal leaks excessi vel y

⇓ Pump requires excessive power

⇓ Pump loses prime after starting

⇓ Insuffi cient pressure developed

⇓ Insuffi cient capaci t y delivered

⇓ Pump does not deliver liquid

									⇓	PROBABLE CAUSES	POSSIBLE REMEDIES
										PROBABLE CAUSES	POSSIBLE REMEDIES
		z					z	z		Impeller damaged or eroded.	Replace impeller and check reason.

				z						Leakage under sleeve due to joint failure.	Replace joint and check for damage.

			z	z	z					Mechanical seal improperly installed.	Check alignment of faces or damaged parts and
			z	z	z					Mechanical seal improperly installed.	assembly method used.
											assembly method used.
			z	z	z					Incorrect type of mechanical seal for operating	Consult Flowserve
			z	z	z					conditions.	Consult Flowserve
										conditions.
z	z	z	z	z	z					Shaft running off centre because of worn	Check misalignment and correct if necessary.
z	z	z	z	z	z					Shaft running off centre because of worn	If alignment satisfactory check bearings for
										bearings or misalignment.	If alignment satisfactory check bearings for
										bearings or misalignment.	excessive wear.
											excessive wear.

	z	z	z	z						Impeller out of balance resulting in vibration.	Check and consult Flowserve.

			z	z	z					Abrasive solids in liquid pumped.	Check and consult Flowserve.
			z	z						Mechanical seal was run dry.	Check mechanical seal condition and source of
			z	z						Mechanical seal was run dry.	dry running and repair.
											dry running and repair.
z	z	z	z	z	z					Internal misalignment due to improper repairs	Check method of assembly, possible damage or
z	z	z	z	z	z					causing impeller to rub.	state of cleanliness during assembly.
										causing impeller to rub.	state of cleanliness during assembly.
z	z	z								Excessive thrust caused by a mechanical failure	Check wear condition of impeller, its clearances
z	z	z								inside the pump.	and liquid passages.
										inside the pump.	and liquid passages.
	z	z								Excessive grease in ball bearings.	Check method of regreasing.

	z	z								Lack of lubrication for bearings.	Check hours run since last change of lubricant,
	z	z								Lack of lubrication for bearings.	the schedule and its basis.
											the schedule and its basis.
	z	z								Improper installation of bearings.	Check method of assembly, possible damage or
	z	z								Improper installation of bearings.	state of cleanliness during assembly and type of
											state of cleanliness during assembly and type of
											bearing used.
	z	z								Damaged bearings due to contamination.	Check contamination source and replace
	z	z								Damaged bearings due to contamination.	damaged bearings.
											damaged bearings.
										C. ELECTRICAL TROUBLES
		z			z		z	z		Wrong direction of rotation.	Reverse 2 phases on motor terminal box.

		z					z	z		Motor running too slow.	Check motor terminal box connections.

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Contents

PCN=71569247 07-04(E) (supercedes 6176/6511) CONTENTS INDEX 1INTRODUCTION AND SAFETY1.1 General 1.2 CE marking and approvals 1.3 Disclaimer 1.4 Copyright 1.5 Duty conditions 1.6 Safety Gland packing must not be used when pumping hazardous liquids 1.6.4Products used in potentially explosive atmospheres 1.6.4.1 Scope of compliance 1.6.4.2 Marking II 2 GD c 135 ºC (T4) 1.6.4.3 Avoiding excessive surface temperatures 1.6.4.4Preventing the build up of explosive mixtures 1.6.4.5 Preventing sparks 1.7 Warning labels summary 1.8 Specific machine performance 1.9 Noise level 2 TRANSPORT AND STORAGE 2.1 Consignment receipt and unpacking 2.2 Handling 2.3 Lifting 2.4 Storage 3.4 Performance and operating limits 3 PUMP DESCRIPTION 3.1 Configurations 3.2 Name nomenclature 8-UB-1 4 INSTALLATION 4.1 Location 4.2 Foundation 4.3 Grouting 4.4 Initial alignment 4.5 Piping 4.5.2 Suction piping 4.5.4 Discharge piping 4.5.5 Auxiliary piping 4.5.5.1 Drains 4.5.5.2 Pumps fitted with packed gland Pumps fitted with mechanical seals 4.6 Final shaft alignment check 4.7 Electrical connections 4.8 Protection systems 5COMMISSIONING, START-UP,OPERATION AND SHUTDOWN 5.1 Pre-commissioningprocedure 5.2 Pump lubricants 5.3 Direction of rotation 5.4 Guarding 5.5 Priming and auxiliary supplies 5.6 Starting the pump 5.7 Running the pump 5.8 Stopping and shutdown 5.9Hydraulic, mechanical and electrical duty 6MAINTENANCE6.1 General 6.2 Maintenance schedule 6.2.1 Routine inspection (daily/weekly) 6.2.2 Periodic inspection (six monthly) 6.2.3 Re-lubrication Regrease Grease change 6.3 Spare parts 6.4Recommended spares and consumable items 6.5 Tools required 6.6 Fastener torques 6.7 Renewal clearances 6.8 Disassembly 6.9 Examination of parts 6.10 Assembly 6.10.4 Casing lower half 6.10.5 Casing upper half 7 FAULTS; CAUSES AND REMEDIES Page 8 PARTS LISTS AND DRAWINGS 8.1 Sectional drawings – 8-UB-1grease lubricated, gland packed 8.2 General arrangement drawing 9 CERTIFICATION 10OTHER RELEVANT DOCUMENTATION AND MANUALS 10.1 Supplementary User Instructions 10.2 Change notes 10.3 Additional sources of information USA and Canada Latin America and Caribbean Europe, Middle East and Africa Asia Pacific Flowserve Pumps Limited