Instruction Manual
DHS-5 Remote Spreader - V1.0
www.durapac.com
Page 5 of 9
4.3
Check all system fittings and connections to be sure they are tight and leak free.
4.4
Check oil level in reservoir before operating pump.
4.5
Remove air from the system – Position the spreader so that the piston rod is pointed
down and the cylinder is lower than the pump. Advance and retract the cylinder
several times, avoiding pressure build-up. Air removal is complete when the cylinder
motion is smooth.
5.0
Operation
Inspect before each use. Do not use if bent, broken, leaking or damaged components are noted
Maintain a constant grip on the spreader during operation as the tool does not attach to other
equipment
The DHS-5 spreaders have a spring return cylinder and the speed of retraction is affected by
the length of the hose and other restrictions in the line. Most 700 bar hand or power pumps
for use with single acting tools are compatible with the DHS-5 spreader.
For complete operating instructions refer to the instruction sheet included with each pump.
5.1
Spreader Loads
5.1.1
Ensure that both spreader jaws fully engage the load and that the load is
centred on the serrated portion of each spreader jaw before pressurising
spreader. Do not load off centre.
Figure 1 – Typical Spreader Nomenclature
5.1.2
Ensure load is mechanically blocked before personnel commence operations
near the work area.
5.2
Advancing and retracting the Spreader
5.2.1
To spread the feet, connect the hydraulic cylinder to a pump and pressurise.
5.2.2
To close the feet, release the pressure of the pump.
