Emerson Q Series Repair Instruction Manual Download Page 1 | Manualshive

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Q-Series

Switch Adjustment and Feedback Mechanism replacement

Repair Instruction Manual

DOC.SAFM.Q4.E Rev. 0

March 2018

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Summary of Contents for Q Series

Page 1: ...2 1 Q Series Switch Adjustment and Feedback Mechanism replacement Repair Instruction Manual DOC SAFM Q4 E Rev 0 March 2018 ...

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Page 3: ... SAFM Q4 E Rev 0 Table of Contents March 2018 3 Table of Contents Contents 1 Before you start 4 Scope 4 General safety messages 4 Required tools 5 2 Disassembly procedure 6 3 Reassembly procedure 9 4 Adjusting the switch points 11 ...

Page 4: ...ignal to the actuator Be sure the actuator cannot suddenly open or close the valve Use bypass valves or completely shut off the process to isolate the control valve from process pressure Relieve process pressure from both sides of the valve Use lock out procedures to be sure that the above measures stay in effect while you work on the equipment Check with your process or safety engineer for any ad...

Page 5: ...p whenever possible Make sure that the electrical wiring and pneumatic tubing is disconnected prior to disassembling the instrument 1 3 Required tools In order to replace the switch adjustment screws and or feedback mechanism below tool are required Figure 2 Required tools Plastic mallet Punch drive Set of metric allen keys Slot screw driver or equivalent E clips tool for size 2 5mm ...

Page 6: ...ver screws on the back side of the control module Check if the O ring seals are in good shape Replace if neccesary Figure 3 Remove the cover screws 3 mm Allen key Pay attention to the two bound seal washers 2 Remove the cover and guide bushing Check if the O ring seals are in good shape Replace if neccesary Figure 4 Remove cover and guide bushing Pay attention to the two bound seal washers Guide b...

Page 7: ... the spring when release the screw driver after remove the e clip 3 Remove the E clips from groove using the slot screw driver Figure 5 Remove E Clips 4 Take out the feed back mechanism The plastic adjustment screws are under the feed back mechanism Figure 6 Remove feedback mechanism Adjustment screws ...

Page 8: ...8 March 2018 Repair Instruction Manual DOC SAFM Q4 E Rev 0 5 Punch the plastic screws from bottom untill they are free to be removed from the top Figure 7 Remove the adjustment screws Adjustment screws ...

Page 9: ...edback mechanism to match the direction of new adjustment screws Figure 9 Adjust the orientation of the heads of setting screws Heads of setting screws of the feedback mechanism 3 Place the feedback mechanism back into housing The mechanism can be pressed down to the same level of the machined surface if the rotation of the screw and plastic are matched in step 2 4 Place the spring back and put th...

Page 10: ... groove and the switch operating rod is visible 6 Use the e clip tool to mount the e clip in the groove Figure 11 Mount the E clip Groove on switch operating rod 7 Place back the bushing and mount the cover back in place Tighten the screws with 8 85 lbf in 0 73 lbf ft or 1 Nm of torque IMPORTANT Make sure that the bound seals are in place when mounting the cover screws Figure 12 Place back the bus...

Page 11: ...tion 5 of the installation guides as shipped with each Control Module Additionally for below control modules Step By Step setting instruction sheets are available Control modules Brand Installation guide Step By Step setting instruction QC41 QC42 and QC43 FieldQ DOC IG QC41 1 DOC SAI QC41 EN QC40 ASI FieldQ DOC IG QC40 1 DOC SAI QC40 EN QC41 QC42 and QC43 Bettis Q Series DOC IG BQC41 1 DOC SAI QC4...

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Page 13: ...Longmeadow Business Estate East P O Box 6908 Greenstone 1616 Modderfontein Extension 5 South Africa T 27 11 451 3700 EUROPE Holland Fasor 6 Székesfehérvár 8000 Hungary T 36 22 53 09 50 Strada Biffi 165 29017 Fiorenzuola d Arda PC Italy T 39 0523 944 411 www emerson com bettis 2018 Emerson All rights reserved The Emerson logo is a trademark and service mark of Emerson Electric Co BettisTM is a mark...

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