> For the complete documentation index, see [llms.txt](https://bell-505-guide.gitbook.io/bell-505-maintenance-guide/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://bell-505-guide.gitbook.io/bell-505-maintenance-guide/line-maintenance/removal-installation/hydraulic-power/removing-the-pump-adapter-assembly.md).

# Removing the pump adapter assembly

## Preliminary requirements

### Required Conditions

<table><thead><tr><th>Action/Condition</th><th data-type="content-ref">Reference</th></tr></thead><tbody><tr><td>Remove the left transmission fairing (432AL).</td><td></td></tr><tr><td>Remove the upper-left mid-fuselage access-panel (433AL).</td><td></td></tr><tr><td>Remove the hydraulic pump.</td><td><a href="/bell-505-maintenance-guide/line-maintenance/removal-installation/hydraulic-power/removing-the-hydraulic-pump.md">Removing the hydraulic pump</a></td></tr><tr><td>Remove the NR sensor.</td><td><a href="/bell-505-maintenance-guide/line-maintenance/removal-installation/main-rotor/removing-the-nr-sensor.md">Removing the NR sensor</a></td></tr></tbody></table>

## Procedure

1. Remove the nuts and the washers from the pump adapter.
2. Remove the pump adapter from the oil pump.
3. Disengage and remove the pump driveshaft assembly from the shaft of the oil pump.
4. Remove the gasket from the oil pump.