Flowserve LY Series Limitorque - Manual (Page 3)

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Limitorque LY Series: LY 1001, LY 2001 and LY 3001 FCD LMENIM1501-00 – 11/11
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Contents
1 Introduction 5
1.1 Purpose 5
1.2 User Safety 5
2 Product Capabilities and Features 6
3 Initial Inspection and Storage Instructions 7
3.1 Product Identification 7
3.2 Inspection and Recording 8
3.3 Storage Procedures 8
3.3.1 Short-Term Storage (less than 1 year) 8
3.3.2 Long-Term Storage (1 to 5 years) 8
4 Actuator Weights 10
5 Installation Instructions 11
5.1 Safety Precautions 11
5.2 Safety Practices 12
5.3 Initial Actuator Preparation 12
5.4 Installation Overview 14
5.5 Torques Switch Settings 18
5.6 Rewiring the Torque Switch for Non-Standard Drive Sleeve Rotation 18
5.7 Limit Switch and Mechanical Stop Settings 19
5.8 Setting the Limit Switches 19
5.8.1 Setting the CLOSED Limit Switch 19
5.8.2 Setting the OPEN Limit Switch 21
5.9 Mechanical Stops 22
5.9.1 Setting the CLOSED Mechanical Stop on the LY 1001 22
5.9.2 Setting the CLOSED Mechanical Stop on the LY 2001/3001 23
5.9.3 Setting the OPEN Mechanical Stop on the LY 1001 24
5.9.4 Setting the OPEN Mechanical Stop on the LY 2001/3001 24
5.10 Setting the MDPI (Mechanical Dial Position Indicator) 24
5.10.1 Setting the Potentiometer 25
6 Operation 27
6.1 Typical LY 1001 Operation 27
6.2 Verify Correct Motor Rotation (Phasing) and OPEN/CLOSE Pushbutton Operation 27
6.2.1 Three-Phase Motor 28
6.2.2 Single-Phase Motor 32
6.2.3 DC Motor 36
6.3 Electrical Startup 36
6.4 Manual Operation 37
6.5 Motor Operation 37
7 Maintenance 45
7.1 Lubrication 45
7.1.1 Lubrication Inspection 45
7.1.2 Factory Lubricant 46
7.2 Minimum Lubricant Qualities Required 46
7.3 Disassembly and Reassembly 46
7.3.1 LY 1001 Disassembly 46
7.3.2 LY 1001 Reassembly 48
7.3.3 LY 2001/3001 Disassembly 50
7.3.4 LY 2001/3001 Reassembly 52
7.4 Troubleshooting 55
8 Parts List 58
9 How to Order Parts 61
10 Regulatory Information 62