Samson EB 31a-23, Mounting And Operating Instructions

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EB 31a-23_EN
Edition: November 2021
Speci fi cations subject to change
Contents
9 Service 9-1
9.1 Preparation for servicing 9-1
9.2 Part lists 9-2
9.2.1 Part list for Quarter-turn actuator in standard version 9-2
9.2.2 Part list for Quarter-turn actuator in HCD version 9-4
9.2.3 HCD with hydraulic circuit part list 9-5
9.3 Disassembly 9-5
9.3.1 Position indicator removal 9-5
9.3.2 Hydraulic fl uid removal 9-6
9.3.3 Stop cap screws removal 9-6
9.3.4 End caps disassembly 9-7
9.3.5 HCD components disassembly 9-8
9.3.6 Pistons disassembly 9-8
9.3.7 Drive shaft disassembly 9-9
9.4 Service operation 9-9
9.5 Reassembly 9-9
9.5.1 Drive shaft reassembly 9-10
9.5.2 Pistons reassembly 9-10
9.5.3 HCD components reassembly 9-11
9.5.4 End cap reassembly 9-12
9.5.5 HCD chamber fi lling 9-13
9.5.6 Position indicator reassembly 9-15
9.5.7 Stop cap screws reassembly 9-15
9.5.8 Stroke adjustment 9-15
9.5.9 Mounting the actuator over the valve 9-15
10 Decomissioning 10-1
11 Removal 11-1
12 Repairs 12-1
13 Disposal 13-1
14 Certi fi cates 14-1
15 Annex 15-1
15.1 Tightening torques, lubricants and tools 15-1
15.1.1 Tightening torques 15-1
15.1.2 Lubricants 15-1
15.1.3 Tools 15-2
15.2 Spare parts 15-2
15.2.1 Spare parts for the Quarter-turn actuator with hydraulic speed control 15-3
15.2.2 Part list for BR 31a Edition 2010 Quarter-turn actuator in standard version 15-4
15.3 After-sales service 15-6