Bray 70-0122-113E0-536 Operation And Maintenance Manual Download Page 1 | Manualshive

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SERIES 70

TUNNEL DAMPER MODEL ELECTRIC ACTUATOR

OPERATION AND MAINTENANCE MANUAL

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Summary of Contents for 70-0122-113E0-536

Page 1: ...SERIES 70 TUNNEL DAMPER MODEL ELECTRIC ACTUATOR OPERATIONAND MAINTENANCE MANUAL ...

Page 2: ......

Page 3: ...ting to a valve 4 field wiring 4 travel limit switch and mechanical travel stop adjustment 5 clockwise adjustments 5 counter clockwise adjustments 6 heater 6 typical wiring diagrams form zz dpdt db switches on off service 7 Basic Disassembly and Assembly Instructions 8 appendix a basic tools 9 appendix b actuator troubleshooting chart 9 appendix c exploded view and parts list of housing size 12 10...

Page 4: ...sandequipment in accordance with established safety practices Is trained in the proper use and care of personal protective equipment PPE in accordance with established safety practices Is trained in first aid In cases where the device is installed in a potentially explosive hazardous location is trained in the operation commissioning operation and maintenance of equipment in hazardous locations WA...

Page 5: ...termined by an indicator cam shaft linked to the output shaft In the declutchable condition themanual overridedrivesthewormshaftwhenengaged CW vs CCW Due to the fact that the Series 70 is a rotary actuator there are two directions that it can turn to actuate a device clockwise and counter clockwise Depending on theapplicationtheactuatorisgoinginto andthephysical constraintsthat applicationpresents...

Page 6: ...nting on Bray butterfly valves With proper mount ing hardware the S70 actuator can be installed onto other quarter turn valves or devices such as a damper NOTICE The standard mounting position for the actuator is to orient the unit with its handwheel in a vertical plane and parallel to the pipeline If the actuator is to be mounted on a vertical pipe it is recommended that the unit be positioned wi...

Page 7: ...the mechanical stop for the CW position and back it off so that it does not interfere with actuator travel CW stop located on right when viewed from travel stop side of actuator 2 Reference the striker bar for damper position 3 Manuallyoperatetheactuatorhandwheelclockwise until the valve reaches the desired fully CW position 4 Rotate the red adjusting knob by hand or with a flat head screwdriver u...

Page 8: ...yle which has a unique temperature resistance characteristic The heater self regulates by increasing its electrical resistance relative to its temperature The heater does not require external thermostats or switches to control its heat output It is constructed of a polycrystalline ceramic sandwiched betweentwoconductors andwrappedinsideathermally conductive electrical insulator Connecttheheaterwir...

Page 9: ... for actuator in its fully open CW Condition Wiring diagram for CCW Open Unit with form ZZ DPDT DB travel switches Drawn for actuator in its fully closed CW condition Field Wiring Actuator Field Wiring Actuator Note Bray Series 70 Tunnel Damper electric actuator wiring is the same regardless of CW or CWW application Control is achieved through field wiring ...

Page 10: ... the Gearmotor first disconnect the mo tor leads which run to the capacitor and unscrew the mounting screws four lower one upper The motor can now be removed vertically out of the unit Note do not misplace the alignment pin 5 To remove the worm shaft spur gear remove the spring pin using a 3 32 punch then slide the gear off the end of the worm shaft for Housing Size 12 Remove bowed E clip retainer...

Page 11: ...emperature Allow time to cool Actuator operates in reverse directions Field wiring is reversed Rewire field wiring Actuator does not fully close damper or open damper Limit switches are depressed Readjust travel limit switches Mechanical travel stop is stopping actuator Adjust mechanical travel stops Damper torque requirement is higher than actuator output Manually override out of seat try angle s...

Page 12: ...PIN 25 BUSHING 26 THRUST WASHER 27 RETAINING RING 28 OUTPUT WORM GEAR SEGMENT 29 O RING S 128 30 CAPACITOR 31 TERMINAL STRIP 32 ARMACELL TUBING 33 OVERRIDE SPRING PIN 34 TRAVEL STOP BOLT 35 HEX NUT 36 NYLON FLAT WASHER 37 O RING 38 WORM SHAFT 39 OVERRIDE DRIVE PIN 40 SPRING PLUNGER 41 MANUAL OVERRIDE SHAFT 42 MANUAL OVERRIDE SLEEVE 43 O RING S 126 44 O RING S118 45 RETAINING RING 46 HAND WHEEL CW ...

Page 13: ... RIBG S 232 25 CAPACITOR 26 TERMINAL STRIP 27 ARMACELL TUBING 28 OVERRIDE SPRING PIN 29 TRAVEL STOP BOLT 30 LOCK NUT 31 NYLON FLAT WASHER 32 O RING 33 WORM SHAFT 34 OVERRIDE DRIVE PIN 35 SPRING PLUNGER 36 MANUAL OVERRIDE SHAFT 37 MANUAL OVERRIDE SLEEVE 38 O RING S 126 39 O RING S118 40 RETAINING RING INTERNAL 41 HAND WHEEL CW TO OPEN 42 HANDWHEEL WARNING LABEL 43 HAND WHEEL CCW TO OPEN 44 PIN SLOT...

Page 14: ...BRAY Series 70 Tunnel Damper Electric Actuator Operation and Maintenance Manual 12 ...

Page 15: ...BRAY Series 70 Tunnel Damper Electric Actuator Operation and Maintenance Manual 13 ...

Page 16: ...IONAL Inc 13333 Westland East Blvd Houston Texas 77041 281 894 5454 FAX 281 894 9499 www bray com Bray is a registered trademark of BRAY INTERNATIONAL Inc 2014 Bray International All rights reserved OM 70TD 001 07 2014 R CONTROLS ...

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