System Operation; Connect The Hydraulic Hoses - Holmatro DR200ST Manual

Specifications
Type of hydraulic oil
Vibration level
Temperature range
weight, ready for use
Dimensions (AxBxC)
refer to fig. 3
Directives
4 Preparation for first use
4.1 General
Check the equipment for completeness and damage. Do not use the equipment if it is damaged; in that
case contact the Holmatro dealer.
5 Operation
5.1

System operation

A system is an assembly of a hydraulic pump, hose(s), and one or more tools.
The hydraulic pump displaces hydraulic oil and is capable of building up pressure.
The hose is for transporting the hydraulic oil between the pump and the tool.
The tool has a hydraulic cylinder containing a piston that can move axially. If the cylinder is pumped full
from the bottom, the pressure builds up beneath the piston so that it is pushed to the outside. The axial
movement of the piston is used directly to a ram or transferred to a spreading or cutting mechanism.
5.2 CORE™ couplers
The hydraulic hose of the CORE™ system is a single hose, that combines a high pressure supply hose
inside a low pressure return hose. The female coupler has a unique function: after disconnection it
connects the supply and the return lines internally. This means you can connect and disconnect tools
without interrupting the oil supply to the hose.
5.3

Connect the hydraulic hoses

5.3.1 General
CAUTION
Never use damaged couplers.
Never use pliers or similar tools to connect the hydraulic couplers.
5.3.2 Hose with CORE™ couplers
See Fig. 6.
• Check the couplers for dirt and damage and clean them if necessary.
DR200(ST)
Unit
2
m/s
°C
°F
kg
lb
mm 112 x 597 x 160
in 4.4 x 23.5 x 6.3
916.400.194_003
DR200
ISO-L HV VG 15/22
< 2.5
-20 + 55
-4 + 131
7.6
16.8
2006/42/EC
EN
DR200ST
112 x 590 x 160
4.4 x 23.2 x 6.3
25