Holmatro IPU-S Serie Manual página 30

EN
5.7 Relief the pressure in unconnected hoses or tools
5.7.1 General
Temperature differences can cause overpressure in unconnected hoses and tools. This overpressure
can make it impossible to connect the parts. You can use the pressure relief tool to remove this
overpressure. This accessory is available for all Holmatro hose systems and is supplied by default with
every pump.
NOTICE
We recommend you keep more than one of these tools on hand.
5.7.2 Quick-Lock couplers
Refer to Fig. 6.
• Turn the knob of the pressure relief tool counterclockwise to make room for the coupler.
• Press the pressure relief tool on to the coupler of the hose or tool.
• 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.
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
Use the pump only for tools that require an oil volume that is less than the maximum available oil
volume.
• Position the pump on a solid level base (maximum 20°).
• Check the hydraulic oil level.
• Connect the hydraulic hoses to the tool and the pump. Refer to section 5.2.
• Connect the control valve cable between the pump and the tool.
• Start the pump.
The system is now ready for use.
6.3 During use
The pump provides only pressure during the activation of the control valve by the switches on the tool.
30 916.000.972_002 IPU-S