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2076 NORTHWOODS DR 

 MUSKEGON, MI 49442 

PHONE (231) 788-7025 

 FAX (231) 788-7030 

www.dynatorque.com 

 

ISO 9001:2008 CERTIFIED 

Page 7 of 7 

IOMSRD

IOM FOR DYNATORQUE™ SPRING RETURN MANUAL OVERRIDE (SRD TYPE)  

Revised: 4-15-11 

 
 
 
 
 

C. Lubrication: If for any reason, lubrication replacement is necessary, Cameron recommends 

replacement of that lubrication with: 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

D. Spare 

Parts: 

Cameron warrants work performed by the factory or by factory trained personnel 

only. Please consult the factory or your local DYNATORQUE representative to arrange 
assistance.  Cameron modifies a great percentage of its DYNATORQUE operators to meet 
specific customer requirements. Please refer to the operator part list number as supplied on the 
shipping document, acknowledgement, or invoice, when ordering spare parts. 

E. Spare 

Parts: 

 For your records, please enter the operator part number from your shipping 

documents, acknowledgement, or invoice here: 

 

Part Number:    _________________________ 
 
Date Stamp:     _________________________(Located on the bottom of the operator housing.) 
 
Purchase / Sales Order Number:     _________ 
 

 
 
 

DYNATORQUE Standard Grease Specification:- Alpha Green 2000 
 
NLGI Grade: Grade 2 EP 
Grease Base: Calcium Sulfonate 
Color: Green 
Anti-Wear EP Additives: Yes 
Dropping Point: ASM D566 572Deg F(300Deg C) 
4 Ball Wear KG Load ASTM 2596: 500 
Timken OK Load Lbs. ASTM 2509: 65 
Oil Separation, ASTM D1742-24Hous@77 deg F (25 Deg C) 
Base Oil Viscosity SUS @100 Deg F 600 
Base Oil Viscosity SUS @210 Deg F 70 
Pour Point +5 Deg F 

Please Note: 

When assembling Cameron DYNATORQUE products to a valve or to an automated valve package, standard 
engineering practices must be utilized to assure proper mounting orientation, configuration, and distribution of 
weights

 

and forces. Failure to do so could cause product damage and/or malfunction, 

and void warranty 

consideration

. If there are any questions please contact the factory at [email protected].  

Summary of Contents for Dynatorque IOMSRD

Page 1: ...override and the actuator mounting pad Apply a liberal amount of a liquid gasket material Cameron recommends using DOW Corning RTV 732 multi purpose sealant on both surfaces prior to SRD override installation Make sure to surround the mounting holes with sealant to assure a complete seal Installation The Cameron DYNATORQUE model SRD manual override operator offers safe and easy positioning of valv...

Page 2: ...p bolt more than six to eight turns may allow the worm wheel and worm to disengage during the next phase of Step 1 Rotate the input shaft CW which in turn rotates the override output clockwise until the end of the key slot is just past centerline Ref Photo 1 Step 2 Install the SRD override in the valve and actuator assembly making sure that the valve and actuator are in the closed position Note Mo...

Page 3: ...sed position Home Position by turning the bolt clockwise until the bolt comes into contact with the end of the worm wheel Reverse the bolt turn to ensure that the SRD travel stop is not used as the primary seating element for the pneumatic actuator Tighten the lock jam nut against the body of the override Note If the SRD override has been optionally equipped with the Home Position Indicating Stop ...

Page 4: ...o confirm the proper setting of all components Stroke the valve and actuator assembly several times from closed to open to close to confirm proper pneumatic operation Note When the assembly is in the closed position the SRD input shaft should be able to be freely rotated to of a turn in the CCW direction if properly adjusted Note It is critical to the function of the assembly that the SRD be retur...

Page 5: ... override the actuator rotate the handwheel counterclockwise for a fail closed actuator and clockwise for a fail open actuator The gearing is self locking so once the override position has been reached full CCW for a fail closed and full CW for a fail open the valve actuator and override can stay in this position until the air supply is restored Note When pneumatic actuator air has been restored t...

Page 6: ... valve Assuming these components cycle fully the problem is probably the valve Check the valve for any obstructions If no obstructions are visible call the valve manufacturer for further information 2 If the pneumatic actuator and the override assembly do not appear to function properly make sure that the pneumatic actuator s spring is fully extended Never remove or separate the pneumatic actuator...

Page 7: ... from your shipping documents acknowledgement or invoice here Part Number _________________________ Date Stamp _________________________ Located on the bottom of the operator housing Purchase Sales Order Number _________ DYNATORQUE Standard Grease Specification Alpha Green 2000 NLGI Grade Grade 2 EP Grease Base Calcium Sulfonate Color Green Anti Wear EP Additives Yes Dropping Point ASM D566 572Deg...

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