Instruction Manual
DHS-05 & DHS-1 Spreader - V1.4
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Page 5 of 10
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.
Figure 1 – Typical Spreader Nomenclature (DHS-05 shown)
5.0
Operation
Inspect before each use. Do not use if bent, broken, leaking or damaged components are noted
For complete operating instructions refer to the instruction sheet included with each pump.
The DHS-05 and DHS-1 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-05 and DHS-1
spreaders.
5.1
Ensure that both spreader jaws fully engage the load and that the load is centred on
the serrated portion of each spreader jaw before pressurizing spreader. Do not load off
centre.
5.2
Ensure load is mechanically blocked before personnel commence operations near the
work area.
5.3
To retract the spreader, slowly open the pump release valve to release hydraulic
pressure.
