Instruction Manual Form 1292 October 1997
Type 655 and 655R
Types 655 and 655R Actuators for Self-Operated Control Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1 Scope of Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Actuator Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Loading Connections . . . . . . . . . . . . . . . . . . . . . . . . . 6 Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Startup for Pressure-Reducing Service . . . . . . . . . . 6 Startup for Pressure-Relief Service . . . . . . . . . . . . . 6 Adjustment for Pressure-Reducing or Pressure-Relief Service . . . . . . . . . . . . . . . . . . . . 6 Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Actuator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Top-Mounted Handwheel . . . . . . . . . . . . . . . . . . . . . 8 Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Parts Ordering . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
W0466-1 / IL
Figure 1. Type 655-ED Pressure-Reducing Valve
Introduction Scope of Manual This instruction manual provides installation, adjustment, maintenance, and parts ordering for the Type 655 and 655R actuators and the top-mounted handwheel. Refer to separate instruction manuals for information about valves and accessories used with these actuators.
1F9408-E / DOC
Figure 2. Type 655 Actuator Nameplate
D100305X012
Only personnel qualified through training or experience should install, operate, and maintain the Type 655 and 655R actuators. If you have any questions about these instructions, contact your Fisher Controls sales office or sales representative before proceeding.