Before Use - Holmatro EHW 1650 RC Mode D'emploi

• Press the pressure relief tool on to the coupler of the hose or tool and screw the tool and the coupler
together.
• Wrap a cloth around the pressure relief tool, leave the knob free to operate.
WARNING
Make sure the cloth covers the oil openings, because a cloud of oil may appear without a
cloth.
• Turn the knob clockwise to release the pressure. Some oil will be released.
• Turn the knob counterclockwise and remove the pressure relief tool from the coupler.
5.5 Start and stop the pump
ON button
• Keep the "ON" button pressed to run the electric motor of the pump. The hydraulic pump supplies
oil and develops pressure to the single-acting tool via the high-pressure hose.
• Release the "ON" button to stop the electric motor of the pump, but the pressure in the system will
be maintained.
OFF button
• Press the "OFF" button to depressurize the system. The pressure relief valve opens and the
hydraulic oil returns to the oil tank.
Note
The pressure relief valve will always be fully opened, which prevents the load being lowered
in a controlled manner. If necessary, first install an valve (one-way restrictor) in the hose
system. Refer to chapter 3.5.
6 Use
6.1 General
Check the equipment for completeness and damage. Do not use the equipment if it is damaged; in that
case contact the Holmatro dealer.
WARNING
Make sure you are up to date on all safety regulations and that you have mastered the use
of all equipment of the system you are going to work with.
6.2

Before use

6.2.1 General
Use the pump only for tools that require an hydraulic oil volume that is less than the maximum available
oil volume.
• Position the pump on a solid level base.
• Check the hydraulic oil level.
EHW
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