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© 2015 General Electric Company. All rights reserved.

Safety Information

Important - Please Read Before Installation

Masoneilan model 496 Series Rotary Electric Switch  
instructions contain 

DANGERWARNING, and CAUTION  

labels, where necessary, to alert you to safety related or other 
important information. Read the instructions carefully 

before 

installing and maintaining your control valve. 

DANGER and 

WARNING hazards are related to personal injury. CAUTION 
hazards involve equipment or property damage. Operation of 
damaged equipment can, under certain operational conditions, 
result in degraded process system performance that can 
lead to injury or death. Total compliance with all 

DANGER

WARNING, and CAUTION notices is required for safe operation.

This is the safety alert symbol. It alerts you to potential 
personal injury hazards. Obey all safety messages that follow 
this symbol to avoid possible injury or death.

Indicates a potentially hazardous situation which, if not 
avoided, could result in death or serious injury.

Indicates a potentially hazardous situation which, if not 
avoided, could result in serious injury.

Indicates a potentially hazardous situation which, if not 
avoided, could result in minor or moderate injury.

When used without the safety alert symbol indicates a  
potentially hazardous situation which, if not avoided, could 
result in property damage.

Note: Indicates important facts and conditions.

About this Manual

•  The information in this manual is subject to change without 

prior notice.

•  The information contained in this manual, in whole or part, 

shall not be transcribed or copied without Masoneilan’s 
written permission.

•  Please report any errors or questions about the 

information in this manual to your local supplier.

•  These instructions are written specifically for the  

496 Series Rotary Electric Switch, and do not apply for 
other valves outside of this product line.

Warranty

Items sold by GE are warranted to be free from defects in 
materials and workmanship for a period of one year from 
the date of shipment provided said items are used according 
to GE recommended usages. GE reserves the right to 
discontinue manufacture of any product or change product 
materials, design or specifications without notice.

This instruction manual applies to the Masoneilan  
496 Series Rotary Electric Switch.

The rotary electric switch MUST BE:

•  Installed, put into service and maintained by qualified and 

competent professionals who have undergone suitable 
training.

•  Under certain operating conditions, the use of damaged 

equipment could cause a degradation of the performance of 
the system which may lead to personal injury or death.

•  Changes to specifications, structure, and components 

used may not lead to the revision of this manual unless 
such changes affect the function and performance of the 
product.

•  All surrounding pipe lines must be thoroughly flushed  

to ensure all entrained debris has been removed from the 
system.

Summary of Contents for Masoneilan 496 Series

Page 1: ...GE Oil Gas 496Series Masoneilan Rotary Electric Switch Instruction Manual GE Data Classification Public ...

Page 2: ...D THE PARTICULAR REQUIREMENTS FOR OPERATION OF OTHER EQUIPMENT AT THE SITE THESE INSTRUCTIONS DO NOT PURPORT TO COVER ALL DETAILS OR VARIATIONS IN EQUIPMENT NOR TO PROVIDE FOR EVERY POSSIBLE CONTINGENCY TO BE MET IN CONNECTION WITH INSTALLATION OPERATION OR MAINTENANCE SHOULD FURTHER INFORMATION BE DESIRED OR SHOULD PARTICULAR PROBLEMS ARISE WHICH ARE NOT COVERED SUFFICIENTLY FOR THE CUSTOMER OPER...

Page 3: ...s Safety Information 1 1 Introduction 2 2 Operation 2 3 Installation 2 4 Adjustments 2 5 Mounting Arrangements 4 A 35002 Series Camflex II 30000 Series Varimax 4 B 36002 Series Control Ball II 37002 Series MiniTork II 39002 Series High Performance Butterfly 6 C 37 38 Diaphragm Actuators 7 D 87 88 Spring Diaphragm Actuators 8 ...

Page 4: ...mage Note Indicates important facts and conditions About this Manual The information in this manual is subject to change without prior notice The information contained in this manual in whole or part shall not be transcribed or copied without Masoneilan s written permission Please report any errors or questions about the information in this manual to your local supplier These instructions are writ...

Page 5: ...pling Ref 9 Figure 3 for rotating shaft valves and a back lever Ref 9 Figure 6 for linear motion valves Each is fastened to the switch shaft 11 with a spring washer and cap screw Refer to Figures 3 through 7 for mounting details Microswitches are rated at 10 15 or 20 amps at 115 or 230 volts dc Check the rating printed on each switch Each microswitch has three terminals The lower one is common the...

Page 6: ...ance Figure 1 Dimensions Contact Points 17 13 1 2 4 5 6 9 10 12 13 14 15 16 11 8 7 18 3 Ref No Description Ref No Description Ref No Description 1 Screw 8 Snap Ring 14 Serial Plate 2 Screw 9 Screw 15 Drive Screw 3 Screw 10 O Ring 16 Insulator 4 Microswitch 11 Shaft 17 Screw 5 Lever 12 Cover 18 Washer 6 Body 13 Cam 19 Spacer not shown 7 O Ring Figure 1 Dimensions Figure 2 Cutaway Views ...

Page 7: ...0 Varimax lever 10a 5 Remove cap screw 11 Varimax set screw 11a from switch lever 10 Varimax lever 10a slide switch lever onto shaft behind the main lever Position switch lever in line with main lever Replace and tighten cap screw 11 Varimax set screw 11a 6 Mount switch 1 on bracket 3 using cap screws 4 and hex nuts 8 7 Place slotted end of the back lever 9 over pin 12 on the switch lever Secure w...

Page 8: ...Varimax Ref No Description Ref No Description Ref No Description 1 496 Rotary Switch 7 Flat Head Screw 11 Cap Screw 2 Bottom Cover 8 Hex Nut 11a Set Screw 3 Mounting Bracket 9 Back Lever 12 Lever Pin 4 Cap Screw 10 Lever 13 Washer 5 Lock Washer 10a Lever 14 Retaining Clip 6 Cap Screw Used with 7 Actuator only ...

Page 9: ...Install front cover 7 Install mounting plate 3 using flat head screws 1 8 Mount switch 2 to plate 3 using cap screws 5 and nuts 12 9 Assemble back lever 14 to the switch using cap screw 15 and lock washer 16 10 Assemble clevis 11 to back lever 14 using clevis pin 13 and retaining clip 7 11 Replace bottom cover 4 12 Connect the turnbuckle 10 and clevis 11 Rotate the turnbuckle to equalize threaded ...

Page 10: ...ctuator C 37 38 Diaphragm Actuators The 496 switch is rigidly mounted on the spring barrel of the diaphragm actuator by means of a bracket 7 fastened to the mounting pad with cap screws 8 The back lever 9 is fastened to the end of the switch shaft with spring washer 15 and cap screw 17 The take off linkage must be adjusted before adjusting the switches Apply air pressure to the actuator until the ...

Page 11: ... Page 2 to adjust the switches D 87 88 Spring Diaphragm Actuators Series 87 88 Actuators 496 Switch installation 1 Mount bracket 13 to yoke using cap screws 17 and lock washers 18 2 Attach the back lever 7 to the switch using cap screw 11 and spring washer 12 3 Mount switch on bracket 13 using cap screws 15 and lock washers 16 4 Screw locknut 3 onto clamp rod 2 install clamp rod into split clamp a...

Page 12: ...stered trademarks or trademarks of their respective owners General Electric Company All rights reserved Visit our web site www fr eps com E P S FRANCE 24 bis rue de Picpus 75012 PARIS Tel 33 0 9 83 01 21 01 ventes fr eps com E P S CAMEROON Immeuble Carré d Or Rue Njo Njo Bonapriso DOUALA Tel 237 6 52 12 70 95 ventes fr eps com ...

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