HRD44A Hydraulic Rotary Hammer
Greenlee / A Textron Company
4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
9
Setup
Inspect accessories before use. Discard accessories
that have cracks, chips, or gouges.
Failure to observe this warning could result in severe
injury or death.
Do not change accessories, inspect, adjust, or
clean tool when it is connected to a power source.
Accidental start-up can result in serious injury.
Failure to observe this warning could result in severe
injury or death.
1. Stop the hydraulic power source.
2. Open the drill stay with a downward motion.
3. Insert the accessory into the front head.
4. Close the drill stay with an upward motion.
5. Connect the hydraulic hoses according to the
instructions under “Hose Connections.”
Operation
1. Start the hydraulic power source.
Note: Allow the hydraulic power source to run for a
few minutes to warm the hydraulic fluid.
2. Use the control knob to adjust the rpm of the tool
bit.
3. Position the bit against the surface (rock to be
drilled, material to be broken, ground rod to be
driven, etc.).
4. Grasp both handles firmly.
5. To start the tool, squeeze the control lever.
6. To stop the tool, release the control lever.
Allow the tool to come to a complete stop before
changing the position of the control knob. Changing
the position of the control knob while the tool is oper-
ating can cause internal damage to the tool.
7. When the tool is not in use, stop the hydraulic
power source to reduce heat and wear on tool
components.
Emergency stop procedure:
1. Release the control lever.
2. Shut off the hydraulic power source.
