304 Switch Instruction Manual

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Type 304 & 304L Table 4. Assembly Drawing References ACTUATOR TYPE(1)

FIGURE NUMBER

SIZE

329 350 Series 470 470 470 470 with covered yoke

All All 30 40 through 68 80 through 100

17 7 8 7 14

80

8

478 478-16 478-16 513 and 513R 585 and 585R 585C and 585CR 657 and 667 657 and 667 with covered yoke 657 and 667 657 and 667 1051, 1052, and 1061 1051 and 1052 1052

40 through 68 60 and 68 80 and 100 20 and 32 25, 50, and 100 25 and 50 30 and 34

7 9 14 10 11 12 13 and 15

40 through 70 40 through 70 80 and 87 30, 40, 60, 68, and 70 33 20

13 7 and 15 7, 14, & 15 16 18 19

1061 and 1069 1066 and 1066SR 1076 1077 1078 1250 and 1250R Additional field mounting parts

80 and 100 20, 27, and 75 1, 2, and 3 0-, 2-, 6-, 7-, and 9-KE A, AA, and AAA 225, 450, and 675

17 20 21 22 23 24

–––

25

1. Contact your Fisher Controls sales office or sales representative for information for mounting on actuator types and sizes not listed.

Installation

INFORMATION IN THIS PORTION OF THE NAMEPLATE IDENTIFIES THE HAZARDOUS AREA CLASSIFICATION AND APPROVALS FOR THE PRODUCT SPECIFIED ON THE EQUIPMENT ORDER. 11A4723–K SHT 1 / IL

Figure 2. Typical Nameplate with Hazardous Area Classification Information

WARNING Avoid personal injury from sudden release of process pressure. Before disassembly:

When Type 304 and 304L switches are ordered with an actuator, the factory mounts the position switch and adjusts the cams for the travel specified on the order. When installation is complete, the cam adjustments should be checked as described in the adjustment procedures.

D Disconnect any operating lines providing air pressure, electric power, or a control signal to the actuator. Be sure the actuator cannot suddenly open or close the valve.

If the position switch has been ordered separately, or removed for maintenance, refer to the appropriate procedure for mounting.

D Use bypass valves or completely shut off the process to isolate the valve from process pressure. Relieve process pressure from both sides of the valve. Drain the process media from both sides of the valve.

Mounting the Position Switch on the Actuator To mount a Type 304 or 304L position switch on a Fisher Controls actuator in the field, see the additional actuator parts for field mounting section of the parts list. These additional parts, plus those parts listed in the position switch mounting parts section, are required for some actuators. Refer to the appropriate actuator instruction manual for procedures to disassemble and assemble actuatorto-valve connections if required.

D Use lock-out procedures to be sure that the above measures stay in effect while you work on the equipment. D Vent the power actuator loading pressure and relieve any actuator spring precompression. D For 304 switches in intrinsically safe areas, current monitoring during opera-

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