Holmatro AHS 1400 FDU Mode D'emploi page 30

EN
• Remove dirt and oil from the couplers and dust caps.
• Replace the dust caps on the female and male couplers.
5.5.3 Disconnect the dual-hose couplers
Refer to Fig 7.
WARNING
Always make sure that the pressure is relieved, before you connect hydraulic hose(s) to the
pump. Relief the pressure by pressing the "RELEASE" side of the foot pedal.
• Disconnect the dust caps from each other.
• Disconnect the couplers by turning the ring on the female coupler and sliding it back. The male
coupler will slip out.
• Remove dirt and oil from the couplers and dust caps.
• Replace the dust caps on the female and male couplers.
5.6 Relief the pressure in unconnected hoses or tools
5.6.1 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.
5.6.2 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).
5.6.3 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).
5.7 Vent the hydraulic oil tank
• The pump delivery and the amount of usable oil will increase by removing the hydraulic oil
filling/vent cap (Fig. 2/5).
30 916.219.125_005 AHS