| Serial # Range | Summary of Change / Description | Part # | Doc # | Download Link |
|---|---|---|---|---|
| 130002 - 21A-000012 | GEN A - Plastic A2B switch cover; 'Grey Box' cord reel; boom pad retention system | EMAAAA | 23033 | Download Manual |
| 130001 - | GEN A - Original Design | EMAAAA | 21850 | Download Manual |
| 130000 - | GEN A - Pre-Production w/ 23419 Rotation Slew Drive | EMAAAA | 21850 | Download Manual |
