Installation, Operation and Maintenance Manual
VA-DC-000-1803 Rev. 2
Table of Contents
July 2020
iTable of Contents
Table of Contents
Section 1: Introduction
1.1 General Service Information .......................................................................... 1
1.2 Denitions .................................................................................................... 2
1.3 General Safety Information ........................................................................... 2
1.4 Bettis Reference Materials ............................................................................. 3
1.5 Service Support Items ................................................................................... 3
1.6 Lubrication and Fluid Requirements .............................................................. 4
1.7 General Tool Information .............................................................................. 4
1.8 Actuator Storage ........................................................................................... 4
1.9 Actuator Installation ..................................................................................... 5
1.10 Actuator Start-Up .......................................................................................... 5
1.11 Actuator Operation ....................................................................................... 6
Section 2: Actuator Disassembly
2.1 General Disassembly ..................................................................................... 7
2.2 Pneumatic Power Module Disassembly ......................................................... 7
2.3 Drive Module Disassembly .......................................................................... 10
2.4 M18 Hydraulic Override Cylinder Disassembly ............................................. 12
2.5 M18 Pump Disassembly .............................................................................. 13
2.6 M18 Reservoir Disassembly ......................................................................... 15
Section 3: Actuator Reassembly
3.1 General Reassembly .................................................................................... 16
3.2 Drive Module Reassembly ........................................................................... 16
3.3 Pneumatic Power Module Reassembly ........................................................ 21
3.4 G2 and G3 Early Model Pneumatic Power Module Reassembly..................... 24
3.5 M18 Hydraulic Override Cylinder Reassembly .............................................. 27
3.6 M18 Pump Reassembly ............................................................................... 29
3.7 M18 Reservoir Reassembly .......................................................................... 31
3.8 Actuator Testing ......................................................................................... 32
Section 4: Field Conversions
4.1 Construction Reversal (Exchange Module Locations) ................................... 33
Section 5: Module Removal and Installation
5.1 Pneumatic Power Module Removal ............................................................. 34
5.2 Pneumatic Power Module Installation ......................................................... 34
5.3 M18 Hydraulic Overrides Cylinder Removal ................................................. 35
5.4 M18 Hydraulic Override Cylinder Installation ............................................... 36
5.5 Power Swivel Module Removal .................................................................... 37
5.6 Power Swivel Module Installation ................................................................ 38