| Serial # Range | Summary of Change / Description | Part # | Doc # | Download Link |
|---|---|---|---|---|
| J27050 - CJ29258 | O-Ring Ports on Cylinder | 552000 | 628033 | Download Manual |
| J26787 - J27049 | Changed to Bi-Rotational Pump and Removed 6628 pgs | 552000 | 628031 | Download Manual |
| J26580 - J26786 | Removed VC620 pgs (no changes to design) | 552000 | 628030 | Download Manual |
| J26418 - J26579 | Updated Power Unit Pages | 552000 | 520094 | Download Manual |
| J26213 - J26417 | Original Design | 552000 | 520068 | Download Manual |