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Bettis P/N 137462E  
 Revision 

"A” 

 

Page 3 of 18  
 

 

1.2 DEFINITIONS 
 

WARNING:

      If not observed, user incurs a high risk of severe damage to actuator 

and/or fatal injury to personnel. 

 

CAUTION: 

If  not observed, user may incur damage to actuator and/or injury to 
personnel. 

 

NOTE: 

Advisory and information comments provided to assist maintenance 
personnel to carry out maintenance procedures. 

 

M3: 

Jackscrew or jackscrew assembly. 

 

ES: 

Extended Stop(s) 

 

1.3 

GENERAL SAFETY INFORMATION 

 

1.3.1 

Products supplied by Bettis, in its "as shipped" condition, are intrinsically safe if the 
instructions contained within this Service Instruction are strictly adhered to and executed by 
well trained, equipped, prepared and competent personnel.  

 

WARNING:      For the protection  of  personnel  working  on  Bettis  actuators,  this  
 

procedure should be reviewed and implemented for safe disassembly and  

 

reassembly.    Close  attention  should  be  noted  to  the  WARNINGS,  

 

CAUTIONS and NOTES contained in this procedure.  

 
WARNING:      This procedure should not supersede or replace any customer’s plant  
 

safety or work procedures.  If a conflict arises between this procedure and  

 

the customer’s procedures the differences should be resolved in writing  

 

between an authorized customers representative and an authorized Bettis  

 representative. 

 

 
1.4 

BETTIS REFERENCE MATERIALS 

 

1.4.1 

CBA300 Assembly Drawing use part number 129742. 

1.4.2 

CBA300-M3HW Assembly Drawing use part number 129744. 

 

1.5 

SERVICE SUPPORT ITEMS 

 

1.5.1 Bettis 

Service 

Kit. 

1.5.2 

Commercial leak testing solution. 

1.5.3 Non-hardening 

thread 

sealant. 

 

 
 
 
 
 
 
 
 
 
 

Содержание CBA1030

Страница 1: ...ENGLISH LANUAGE BETTIS SERVICE INSTRUCTIONS DISASSEMBLY AND REASSEMBLY FOR CBAX30 DOUBLE ACTING SERIES PNEUMATIC ACTUATORS PART NUMBER 137462E REVISION B RELEASE DATE 18 April 2007...

Страница 2: ...3 HOUSING DISASSEMBLY 6 SECTION 3 ACTUATOR REASSEMBLY 8 3 1 GENERAL REASSEMBLY 8 3 2 HOUSING REASSEMBLY 8 3 3 PNEUMATIC CYLINDER REASSEMBLY 11 SECTION 4 ACTUATOR TESTING 14 4 1 ACTUATOR TESTING 14 SE...

Страница 3: ...lectrical power and pneumatic pressure has been removed from the actuator 1 1 4 Remove all piping and mounted accessories that will interfere with the disassembly of the actuator 1 1 5 This procedure...

Страница 4: ...ed prepared and competent personnel WARNING For the protection of personnel working on Bettis actuators this procedure should be reviewed and implemented for safe disassembly and reassembly Close atte...

Страница 5: ...1 All threads on CBA series actuators are Inch Unified and NPT 1 7 2 All tools Hexagons are American Standard inch 1 7 3 Suggested tools Two adjustable wrenches small standard screwdriver with sharp...

Страница 6: ...y be equipped with one or two ES ES Extended Stops or M3 M3HW located on outboard end of housing 1 10 and end cap 4 20 2 1 2 Record the settings of stop screw ES or M3 jackscrews 6 30 and 4 30 before...

Страница 7: ...cylinder 4 10 over piston 4 50 and remove 2 2 5 Remove piston 4 50 from center bar 8 10 NOTE The standard non M3 piston 4 50 is an assembly made up of one roll pin and one yoke pin do not attempt to...

Страница 8: ...ve hex nut 6 40 from M3 jackscrew 6 30 NOTE CBA730 through CBA1030 M3 M3HW models the M3 jackscrew 4 30 can not be removed now The M3 used in these models can be removed later in this procedure using...

Страница 9: ...tion as defined in Section 1 step 1 6 3 1 4 1 Before installation coat all moving parts with lubricant 3 1 4 2 Coat all seals with lubricant before installing into seal grooves 3 1 5 Torque shaft uppe...

Страница 10: ...o the M3 jackscrew adapter 3 2 1 8 Install hex nut 6 40 onto M3 jackscrew 6 30 NOTE Rotate the hex nut down the M3 jackscrew until it is next to the M3 jackscrew adapter 3 2 2 Housing Adapter 6 10 ES...

Страница 11: ...shaft 1 30 3 2 13 Install position indicator 1 50 onto the top of torque shaft 1 30 3 2 14 Rotate the torque shaft 1 30 so that the arms of yoke 1 20 point outward 3 2 15 Coat o ring seal 5 20 with lu...

Страница 12: ...he stepped outer diameter of cylinder adapter 4 15 facing away from housing 1 10 3 3 2 2 Install one o seal 5 15 onto stepped diameter of cylinder adapter 4 15 3 3 3 Coat all areas of piston 4 50 with...

Страница 13: ...end cap 4 20 NOTE Actuators equipped with an end cap M3 jackscrew 4 30 pre install M3 into end cap 4 20 per step 3 3 14 and then install pre assembled end cap into cylinder 4 10 per step 3 3 15 Actuat...

Страница 14: ...ot allow end cap 4 20 to rotate during center bar tightening The end cap must maintain the position as described in step 3 3 16 M3 jackscrew must be installed to be in alignment with the target locate...

Страница 15: ...serial number tag 20 4 1 3 All leak testing will use the customer normal operating pressure or the actuator name tag normal operating pressure NOP NOTE When testing the actuator use a proper adjusted...

Страница 16: ...kscrew o ring seal 4 1 8 4 Remove pressure from pressure inlet port in the end cap 4 20 4 1 9 If an actuator was disassembled and repaired as a result of this procedure the above leakage test must be...

Страница 17: ...ter 6 10 5 3 2 4 Install hex nut 6 40 onto ES 6 30 NOTE Rotate the hex nut down the ES until it is next to housing adapter 6 10 5 4 ADD AN EXTENDED STOP ES TO CYLINDER END CAP 4 20 NOTE Prior to disas...

Страница 18: ...embly steps 2 3 2 and 2 3 3 5 5 3 Prior to actuator re assembly review all of Section 3 1 General Re assembly 3 2 Housing Re assembly and 3 3 Pneumatic Cylinder Re assembly 5 5 4 If new M3 housing ada...

Страница 19: ...M3 cannot be installed on a standard CBA actuator unless the M3 targets are installed on the piston assembly as shown in Figure Number 2 If the M3 is operated with a piston that does not have a targe...

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