Flowserve Limitorque QX Maintenance And Spare Parts

Limitorque QX Electronic Actuator FCD LMENIM3314-01 – 06/18
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Contents
1 Introduction 7
1.1 Premise 7
1.2 Procedure Emphasis 7
1.3 Important Notes and Warning Statement 8
1.4 Reference Documents 8
1.5 This Document Applies to both QX – 90˚ Actuators and All QXM-Multi-Turn Actuators 8
2 QX Actuator Subassembly 9
2.1 QX Actuator Subassembly Components 10
2.1.1 Product Description 10
2.1.2 Storage 10
2.1.3 Unit Weights 11
2.2 Product Idenitification 11
2.2.1 Initial Inspection and Recording Suggestions 11
2.3 Maintenance 12
2.3.1 Recommended Maintenance 12
2.3.2 Unit Lubrication 12
2.3.3 O-Ring Lubrication 13
2.4 Subassembly Removal and Remounting Procedures 13
2.5 How to Order Replacement Subassemblies 13
2.5.1 Replacement Parts 13
2.5.2 Returning Procedure 14
2.5 Screw Preload (Torque) 14
3 Remove Actuator from Mounting Adapter 15
3.1 Actuator Removal with Type B4/B4E Base (Torque) 15
3.1.1 Removal (Type B4/B4E Base) 15
3.2 Actuator Removal with Type A1/A1E Base (Thrust)–QXM only 17
3.2.1 Optional Thrust Base Assembly QX-1 & 2 17
3.2.2 Optional Thrust Base Assembly Removal 17
3.2.3 Thrust Base Remounting 18
3.2.4 Removal (Type A1/A1E Base) Actuator Removal Separate from Thrust Base 19
3.2.5 Remounting (Type A1/A1E Base) Actuator Remounting Separate from Thrust Base19
3.2.6 Removal (Type A1/A1E Base) Actuator and Thrust Base as a Unit 20
3.2.7 Remounting (Type A1/A1E Base) Actuator and Thrust Base as a Unit 20
4 Mechanical Assemblies 21
4.1 Motor Subassembly. QX-1 thru 5 21
4.1.1 Motor Subassembly Removal. QX-1 thru 5 22
4.1.2 Motor Subassembly Remounting. QX-1 thru 5 23
4.2 Handwheel Cover Subassembly, QX-1 thru 5 24
4.2.1 Handwheel Cover Subassembly Removal, QX-1 thru 5 24
4.2.2 Handwheel Cover Assembly Remounting 27
4.3 Motor Cartridge Subassembly, QX-1 thru 5 27
4.3.1 Motor Cartridge Subassembly Removal, QX-1 thru 5 27
4.3.2 Motor Cartridge Assembly Remounting 28
4.4 Gearing and Clutching 29
4.4.1 Gearing and Clutching Removal 31
4.4.2 Gearing and Clutching Remounting 33
4.5 Pipe Plug 35
4.6 Baseplate 35
4.6.1 Baseplate Removal 35
4.6.2 Baseplate Remounting 37
4.7 Worm Shaft Assembly 37

Flowserve Limitorque QX Specifications

General

Brand	Flowserve
Model	Limitorque QX
Category	Controller
Language	English