Disconnect The Hydraulic Hoses - Holmatro DR200ST Manual

EN
• Insert the couplers by holding them against each other and pushing the male coupler with one
action into the female coupler. The external ring of the female coupler must move in the opposite
direction to the arrows.
• Pull both couplers to check whether the couplers cannot be pulled apart with a normal manual
effort.
NOTICE
Do not store the hose with the ends coupled together.
5.4

Disconnect the hydraulic hoses

5.4.1 General
CAUTION
Never use pliers or similar tools to disconnect the hydraulic couplers.
5.4.2 Hose with CORE™ couplers
See Fig. 7.
• Disconnect the couplers by turning the external ring on the female coupler and then sliding it in the
direction of the arrows. The male coupler will slip out.
• Remove dirt and oil from the couplers.
5.5 Operate the deadman's handle
The deadman's handle is used to determine the movement of the plunger(s). In the neutral position no
pressure is built up and the oil flows back to the pump without pressure. If the deadman's handle is
released, it returns automatically to the neutral position and stops the movement of the plunger(s).
/i
Hold the deadman's handle in this position to open the tool/blades. Pressure is built
up in the tool. Return oil from the tool flows back to the pump without pressure.
Hold the deadman's handle in this position to close the tool/blades. Pressure is built
up in the tool. Return oil from the tool flows back to the pump without pressure.
5.6 Relief the pressure
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.
NOTICE
We recommend you keep more than one of these tools on hand.
26 916.400.194_003 DR200(ST)