Assessments - 4, GPA: 4 ( )

Fabricante : Graco Inc. Arquivo Tamanho: 284.6 kb Arquivo Nome : Língua de Ensino:

Leave air line attached to top half of surge suppressor. 2. Fill top of surge suppressor with enough water to cover automatic valve. There should be no bubbles. 3. Dump water out, and gently push automatic valve. Air should flow. 4. Replace automatic valve if it is defective. There is leaking around surge suppressor fluid inlet. PTFE sealing tape or paste is needed on threads of fluid inlet. Apply PTFE tape or paste to threads. Do not overtighten plastic models. Hand tightening is recommended. . . Service Bladder Failure Replacing Bladder or Bellows Normal life for bladders can be from a few months to several years, depending upon the harshness of the application. Below are common reasons for failed bladders or bellows: . Chemical attack: Check chemical compatibility charts. Consult your Graco distributor. . Cut bladder or bellows: Check for sharp objects that may have been introduced into the surge suppressor through pumped fluid. . Insufficient compressed air charge in surge suppressor during operation: See Charging and Startup on page 8. . Surge suppressor too small for the pump: An undersized surge suppressor will have premature bladder failure. Contact your Graco distributor for assistance in ensuring that you have the correct size surge suppressor. 1. Relieve the pressure. WARNING To reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the Pressure Relief Procedure on page 7. 2. Remove the clamp band, ring flange, or bolts. 3. Remove the top housing of the surge suppressor. 4. Remove the old bladder or bellows, and replace it with the new bladder or bellows. Make sure that you properly orient the parts: . Install rubber bladders with the concave side facing the top housing, as shown in the Parts Drawings on page 14. . Install PTFE bellows with the concave side facing the bottom housing, as shown in Model No. 239126 in the Parts Drawings on page 15. Install the PTFE encapsulated fluoroelastomer o-rings on each side of the bellows. 5. Replace the top housing of the surge suppressor. 6. Replace the clamp band, ring flange, or bolts, and torque according to the torque specifications in the Torque Table on page 11. . . Service Torque Table Find the proper torque specifications for your surge suppressor unit in the table below. These are the torques to which the clamp band, ring flange, or bolts in bolted units need to be tightened. KEY: plastic = polypropylene or acetal metal = stainless steel rubber = fluoroelastomer or Buna–N Model Bladder Material Housing Material Type of Clamp Torque Husky 2000 rubber plastic clamp band 45 to 55 in-lb (5.1 to 6.2 N-m) Husky 2000 rubber plastic ring flange 65 to 70 in-lb (7.3 to 7.9 N-m) Husky 2000 PTFE plastic ring flange 90 to 105 in-lb (10.2 to 11.9 N-m) Husky 2000 rubber metal and plastic clamp band 30 to 40 in-lb (3.4 to 4.5 N-m) Husky 2000 rubber metal and plastic ring flange 80 to 85 in-lb (9.0 to 9.6 N-m) Husky 2000 PTFE metal and plastic ring flange 90 to 9...

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