Greenlee / A Textron Company
9
4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
HPB55 Series Hydraulic Paving Breaker
Hoses and Fittings
Installation and Maintenance
Refer to publication 99930323, SAE J1273
(Hose and Hose Assemblies).
Replacement
Adaptors: Breakers are installed with 1/2" BSP
male–1/2" BSP male adaptors.
Hoses: Hoses are produced according to EN 853 with
two layers of wire and have a maximum pressure of
275 bar (4000 psi). Hoses are approximately 300 mm
(12") long.
Fittings: 1/2" BSP female for connecting to the
breaker; 1/2" NPTF male for connecting to quick
release couplings.
Hose Connections
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.
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, then to the return port on
the tool.
4. Connect the pressure hose to the pressure port
on the tool, 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, then from the tool.
4. Disconnect the return hose from the tool, then
from the hydraulic power source.
5. Install dust caps over the ports to prevent
contamination.
Typical Setup
