Before Use - Holmatro CU 4007 Manual

EN
5.5 Relief the pressure
5.5.1 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.
Note
We recommend you keep more than one of these tools on hand.
5.5.2 CORE™ system
Refer to Fig. 8.
• Hook the pressure relief tool over the male coupler (1).
• Turn the knob clockwise (2) to release the pressure. Some oil will be released.
• Turn the knob counterclockwise (3).
• Remove the pressure relief tool from the coupler (4).
5.5.3 Dual hose system
Refer to Fig. 9.
• Press the pressure relief tool on to the male coupler (1). The knob will pop out (2).
• Wrap a cloth around the pressure relief tool.
WARNING
Make sure the cloth covers the oil openings, because a cloud of oil may appear without a
cloth.
• Press the pressure relief tool hard with the knob on the ground or against a wall (3) to release the
overpressure. Some oil will be released.
• Remove the pressure relief tool from the coupler (4).
6 Use
6.1 General
The equipment of a rescue system must always be ready for use. That means the equipment must be
checked and inspected directly after use before it is stored.
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.
Never try to connect or disconnect hydraulic couplers if the equipment is being used or if the
system is under pressure.
6.2

Before use

• Inspect the blades. Do not use them if there is any damage.
• Check the operation of the deadman's button and whether it automatically returns to its neutral
position.
• Connect the hydraulic hoses. Refer to chapter 5.2.
30 916.000.967_005 CU4007