| Serial # Range | Summary of Change / Description | Part # | Doc # | Download Link |
|---|---|---|---|---|
| J25898 - J26000 | O-Ring Ports on Cylinder | 662000 | 662098 | Download Manual |
| J25670 - J25897 | Changed to Bi-Rotational Pump and Removed 6628 pgs | 662000 | 628031 | Download Manual |
| J25464 - J25669 | Removed VC620 pgs (no changes to design) | 662000 | 628030 | Download Manual |
| J20663 - J25463 | Updated Power Unit Pages | 662000 | 520094 | Download Manual |
| J20662 - | Original Design | 662000 | 520068 | Download Manual |