Multitec
Point Description Page
No. No.
1 General 1
2 Safety 1
2.1 Marking of Instructions in the Manual 1
2.2 Personnel Qualification and Training 1
2.3 Non-Compliance with Safety Instructions 1
2.4 Safety Awareness 1
2.5 Safety Instructions for the Operator / User 1
2.6 Safety Instructions for Maintenance,
Inspection and Installation work 2
2.7 Unauthorized Modification and
Manufacture of Spare Parts 2
2.8 Unauthorized Modes of Operation 2
3 Transport and Storage 2
3.1 Transport / Handling 2
3.2 Storage / Preservation 2
4 Description of the Product and Accessories 3
4.1 Technical specification 3
4.2 Designation 3
4.3 Design Details 3
4.4 Fields of Application 3
5 Installation at Site 4
5.1 Safety regulations / Special Instructions 4
5.2 Foundation / Check to be carried out
Prior to Installation 4
5.3 Installing the Pump / Unit 4
5.3.1 Aligning the Pump / Drive 5
5.4 Connecting the Piping 5
5.4.1 Vacuum Balance Line 7
5.5 Connection to Power Supply 7
5.5.1 Connecting the Motor 7
5.5.2 Setting the Time-Lag Relay 7
5.5.3 Checking the Direction of Rotation 7
6 Commissioning, Start-up / Shutdown 7
6.1 Commissioning 7
6.1.1 Lubricating agent 8
6.1.2 Priming the Pump and Checks to
Be Carried out 8
6.1.3 Contact Guard 8
6.1.5 Start-up 9
6.1.6 Shutdown 9
6.1.7 Final Check 9
6.2 Operating Limits 9
6.2.1 Temperature of the Medium Handled 9
6.2.2 Switching Frequency 10
6.2.3 Minimum Flows 10
6.2.4 Density of the Medium Handled 10
6.3 Shutdown / Storage / Preservation 10
6.3.1 The pump/unit remains installed;
periodic check of operation 10
6.3.2 The pump is removed from the pipe and
stored 10
6.4 Returning to Service after Storage 10
Contents
Point Description Page
No. No.
7 Maintenance / Repair 11
7.1 General Instructions 11
7.2 Maintenance / Inspection 11
7.2.1 Supervision of Operation 11
7.2.2 Bearings and Lubrication 11
7.2.3 Shaft Seal 12
7.2.4 Coupling 12
7.3 Dismantling 12
7.3.1 General Instructions 12
7.3.2 Preparations for Dismantling 12
7.3.3 Dismantling the Bearings 12
7.3.3.1 Dismantling the Non-Drive-End Bearings 13
7.3.3.2 Dismantling the Drive-End Rolling
Element Bearings 14
7.3.4 Dismantling and Replacement of Shaft Seal 14
7.3.4.1 Replacing the Packing Rings 14
7.3.4.2 Replacing the Shaft Protecting Sleeve 15
7.3.5 Removing the Mechanical Seal 15
7.3.5.1 Removing an Air-Cooled Mechanical Seal 16
7.3.5.2 Dismantling of a Water-Cooled
Mechanical Seal 16
7.3.5.3 Removing a Double-Acting Mechanical Seal 17
7.3.6 Dismantling the Hydraulic Elements 17
7.3.7 Recommended Spare Parts Stock for
2 Years’ Continuous Operation 17
7.4 Reassembly 17
7.4.1 Tightening Torques - Tie Bolts 905 18
7.4.2 Reassembly of Hydraulic System 18
7.4.3 Seals 18
7.4.3.1 Leakage at the Mechanical Seal 19
7.4.4 Bearings 19
7.4.4.1 Temperature of the Rolling Element Bearings 22
7.5 Re-adjusting the Clearance Gaps 22
7.5.1 Maximum Clearance Gaps 22
7.5.2 Repairs 22
8 Trouble-Shooting 24
9 General Drawing 25
9.1 List of Components 28
Annexure I - Environment Protection -
Product Disposal after useful life 30
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