Bray 98 Series - Page 4

Series 98 & 98H Scotch Yoke Actuator
Installation, Operation and Maintenance Manual
© 2020 BRAY INTERNATIONAL, INC. ALL RIGHTS RESERVED. BRAY.COM The Information contained herein shall not be copied, transferred,
conveyed, or displayed in any manner that would violate its proprietary nature without the express written permission of Bray International, Inc.
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16.0 Jackscrew Override 58
16.1 Installation 58
16.1.1 Installing DA Jackscrew Override 58
16.1.2 Operating DA Jackscrew Override 59
16.2 Installing SR Jackscrew Override 60
16.2.1 Operating SR Jackscrew Override 60
17.0 Extended Stoppers 61
17.1 Installation 61
17.1.1 Installing Extended Stopper for Torque Module 61
17.1.2 Adjusting Extended Stopper 62
17.2 Installing Extended Stopper for Spring Module 62
17.2.1 Adjusting Extended Stopper 62
18.0 Hydraulic Damper 63
18.1 Installing the Hydraulic Damper on a DA actuator 63
18.2 Installing the Hydraulic Damper on SR actuator 65
19.0 Partial Stroke Test & Locking Device 68
19.1 Installing PST &LD on a standard DA actuator 68
19.2 Configuring as a Locking Device to lock at CW end 69
19.3 Configuring as Locking Device at CCW end 71
19.4 Configuring as a Partial Stroke Test Device at CCW end 73
19.5 Configuring as a Partial Stroke Test Device at CW end 73
19.6 Installing PST & LD module on a standard SR actuator 74
19.7 Configuring as a Locking Device to Lock at CW End 76
19.8 Configuring as Locking Device at CCW end 77
19.9 Configuring as a Partial Stroke Test Device at CCW end 79
19.10 Configuring as a Partial Stroke Test Device at CW end 79
20.0 Appendix 80
20.1 Special Requirements for Actuators in Extended Temperature Service 80
20.1.1 Torque Module 80
20.1.2 Spring Module 80
21.0 Reference Drawings 81
22.0 Trouble Shooting Potential Problems 82
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