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Bettis P/N 124840E
Revision “B”
Page 1 of 46
CONTENTS
SECTION 1.0 – INTRODUCTION PAGE
1.1 General Service Information ................................................................... 3
1.2 Definitions ............................................................................................... 4
1.3 General Safety Information ..................................................................... 4
1.4 Bettis Reference Materials ...................................................................... 4
1.5 Service Support Items ............................................................................. 4
1.6 Lubrication Requirements ....................................................................... 5
1.7 General Tool Information ........................................................................ 5
SECTION 2.0 - ACTUATOR DISASSEMBLY
2.1 General Disassembly .............................................................................. 5
2.2 Pneumatic Power Module Disassembly .................................................. 6
2.3 Drive Module Disassembly ..................................................................... 9
2.4 Blind End Cap Module Disassembly ....................................................... 11
2.5 M3 Handwheel or M3 Hex Drive Hub Removal ...................................... 11
2.6 M3 Jackscrew Disassembly .................................................................... 12
2.7 Extended Stop Blind End Cap Disassembly............................................ 13
SECTION 3.0 - ACTUATOR REASSEMBLY
3.1 General Reassembly .............................................................................. 13
3.2 Drive Module Reassembly ...................................................................... 14
3.3 Pneumatic Power Module Reassembly .................................................. 18
3.4 Early G2 And G3 Pneumatic Power Module Reassembly ...................... 22
3.5 Blind End Cap Module Reassembly ........................................................ 24
3.6 M3 Jackscrew Reassembly .................................................................... 25
3.7 M3 Handwheel or M3 Hex Drive Hub Installation ................................... 27
3.8 Extended Stop Blind End Cap Reassembly ............................................ 27
3.9 Actuator Testing ...................................................................................... 28
SECTION 4.0 - FIELD CONVERSIONS
4.1 Fail Mode Reversal (CW to CCW, ect.) .................................................. 28
4.2 Convert Double Acting to Spring Return ................................................. 29
4.3 Convert Spring Return to Double Acting ................................................. 29
4.4 Add An M3 Jackscrew To Blind End Cap Module ...................................... 29
4.5 Add An M3 Jackscrew
To Power Module Outer End Cap ........................ 29
4.6 Add An M3 Jackscrew
To Spring Module .................................................. 30
4.7 Add An Extended Stop (Es) To Blind End Cap Module .............................. 30
4.8 Add An Extended Stop (Es) To Power Module Outer End Cap ................. 30
4.9 Add An Extended Stop (Es) To Spring Module ........................................... 30
Contents Continued next page