LCC
2
Contents
Page
Maintenance Manual 1
1 General 5
2 Safety 5
2.1 Marking of Instructions in the Manual 5
2.2 Personnel Qualification and Training 5
2.3 Non-compliance with Safety Instructions 5
2.4 Safety Awareness 5
2.5 Safety Instructions for the Operator / User 5
2.6 Safety Instructions for Maintenance,
Inspection and Installation 5
2.7 Unauthorized Modification and Manufacture
of Spare Parts 6
2.8 Unauthorized Modes of Operation 6
3 Transport and Interim Storage 6
3.1 Transport 6
3.2 Short Term Storage 6
4 Description of the Product and Accessories 6
4.1 Technical Specification 6
4.2 Designation 7
4.3 Design Details 7
4.3.1 Pump Casing 7
4.3.2 Impeller Form 7
4.3.3 Shaft Seal 7
4.3.4 Bearings 9
4.3.5 Permissible Forces and Moments at the
Pump Nozzles 10
4.3.6 Noise Characteristics 10
4.4 Accessories 10
4.5 Dimensions and Weights 10
5 Installation at Site 10
5.1 Safety Regulations 10
5.2 Foundation 11
5.3 Installing the Pump / Unit 11
5.3.1 Aligning the Pump / Drive Train 11
5.3.2 Place of Installation 11
5.4 Connecting the Piping 11
5.4.1 Auxiliary Connections 12
5.4.2 Safety Guards 12
5.5 Final Check 12
5.6 Connection to Power Supply 12
6 Commissioning, Start-up / Shutdown 12
6.1 Commissioning 12
6.1.1 Lubricants 12
6.1.2 Shaft Seal 13
6.1.3 Priming the Pump and Other Checks 13
6.1.4 Checking the Direction of Rotation 13
6.1.5 Cleaning the Plant Piping 13
6.1.6 Suction Strainer 14
6.1.7 Start-up 14
6.1.8 Shutdown 14
6.2 Operating Limits 14
6.2.1 Temperature of the Medium Handled,
Ambient Temperature, Bearing Temperature14
6.2.2 Switching Frequency 14
6.2.3 Density of the Medium Handled 14
6.3 Shutdown / Storage / Preservation 14
6.3.1 Storage of New Pumps 14
6.3.2 Measures to be taken for Prolonged
Shutdown 14
6.3.3 Storage of Elastomer Linings 15
6.4 Returning to Service after Storage 15
7 Maintenance /Repair 15
7.1 General Instructions 15
7.2 Maintenance / Inspection 15
7.2.1 Supervision of Operation 15
7.2.2 Lubrication and Lubricant Change 15
7.2.2.1 Lubrication 15
7.2.2.2 Grease Quality / Grease Changes 15
7.2.2.3 Oil Changes 16
7.3 Drainage / Disposal 16
7.4 Dismantling 16
7.4.1 Sectional Drawings and Bills of Material 16
7.4.2 Dismantling Procedures Impeller 16
7.5 Reassembly 18
7.5.1 General Instructions 18
7.5.2 Mounting of Bearings 18
7.5.3 Inserting Shaft and Bearings into Housing 18
7.5.4 Installing End Covers and Seals 19
7.5.5 Mounting Shaft Sleeve 19
7.5.6 Mounting Stuffing Box 19
7.5.6.1 Stuffing Box 19
7.5.6.2 Packing (non-expeller) 19
7.5.6.3 Packing (expeller) 19
7.5.7 Mounting the Bearing Assembly to Pedestal 20
7.5.8 Metal Expeller Assembly 20
7.5.9 Mounting Shell 20
7.5.10 Elastomer Lined Wet End 20
7.5.11 Impeller 21
7.5.12 Suction Plate and Liner ( LCC-H only) 21
7.5.13 Axial Adjustment of the Bearing Housing 21
7.5.14 Expeller Running Clearance 21
7.5.15 Tightening Torques 22
7.5.16 Water Purge for Gland Packing 22
7.6 Spare Parts Stock 23
7.6.1 Maintenance Procedures for Maximum
Parts Life 23
7.7 Operational Problems and Solutions 23
8 Trouble Shooting 25
9 Torque Values for Metric Fasteners 26
NOTES
27
10 General Drawing with List of Components 28
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