HRD44A Hydraulic Rotary Hammer
Greenlee / A Textron Company
4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
8
Hoses and Fittings
Installation and Maintenance
Refer to publication 99930323, SAE J1273
(Hose and Hose Assemblies).
Replacement
Refer to a Greenlee Utility catalog or publication
99910322, Low Pressure Quick Couplers, Adapters,
and Hoses.
Do not disconnect tool, hoses, or fittings while the
power source is running or if the hydraulic fluid is hot.
Hot hydraulic fluid could cause serious burns.
Hose Connections
Connecting Hoses
1. Move the flow lever on the hydraulic power source
to the OFF position.
2. Stop the hydraulic power source.
3. Connect the return hose to the return port on the
hydraulic power source, and then to the return port
on the tool.
4. Connect the pressure hose to the pressure port
on the tool, and then to the pressure port on the
hydraulic power source.
Disconnecting Hoses
1. Move the flow lever on the hydraulic power source
to the OFF position.
2. Stop the hydraulic power source.
3. Disconnect the pressure hose from the hydraulic
power source, and then from the tool.
4. Disconnect the return hose from the tool, and then
from the hydraulic power source.
5. Install dust caps over the ports to prevent
contamination.
Typical Setup
