Emerson Fisher 2625NS 사용 설명서 - 페이지 8

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Emerson Fisher 2625NS에 대해서도 마찬가지입니다: 사용 설명서 (16 페이지)

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2625 and 2625NS Volume Booster

January 2015

Maintenance

WARNING

Always wear protective clothing, gloves, and eyewear when performing any maintenance procedures to avoid personal

injury.

Maintenance requires taking the volume booster out of service periodically. To avoid personal injury or equipment

damage, disconnect or bypass any pressure lines to the booster, and vent any pressure locked in the unit before you begin

maintenance.

Check with your process or safety engineer for any additional measures that must be taken to protect against process

media.

Diaphragm Assembly Replacement

Key numbers refer to figure 4.

1 . Remove the six cap screws (key 15) from the perimeter of the spring case assembly (key 3), and lift off the

assembly, taking care you do not lose the input spring (key 8) or the spring seat (key 9).

2 . Remove the upper diaphragm (key 6), diaphragm spacer (key 2), diaphragm assembly (key 5), (which includes the

lower diaphragm), and the O‐rings (key 14). Inspect these parts for damage and replace if necessary.

3 . Replace the O‐rings (key 14) after coating with lubricant (key 21). Then replace the diaphragm assembly (key 5),

diaphragm spacer (key 2), and the upper diaphragm (key 6).

Note

To ensure proper operation of the bypass restriction, make certain that the holes in the diaphragm and the bypass restriction are in

line with the holes in the diaphragm spacer (key 2).

4 . Install the spring case assembly (key 3) on the upper diaphragm (key 6). Make sure the spring seat (key 9) and the

upper spring (key 8) are installed in the spring case assembly (key 3). Press on the bottom of the spring seat with

your finger. If the spring seat (key 9) does not move freely in the spring case assembly (key 3), remove the spring

seat (key 9), and apply lubricant (key 23). Reinstall the spring seat (key 9) in the spring case assembly (key 3).

CAUTION

To avoid damage to the diaphragms, do not overtighten the screws.

5 . Replace the six cap screws (key 15) and tighten them in a crisscross manner.

Instruction Manual

D100348X012