Argo-Hytos SD2EX-B2, Руководство по эксплуатации, Страница: 13 / 44

Subject to change_SD2EX-B2(B3;B4)_14064_1en_05/2022
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All of the above activities related to this valve, in particular installation and connection to the hydraulic circuit, require specialist technical knowledge
and experience in the field of hydraulics. The minimum level of competence required is CETOP level 2. This level is generally defined as performing a
variety of activities that require an understanding of technical factors and contexts. This may lead to the need for correct interpretation (e.g.
tolerances, operating methods) or the application of various non-repetitive procedures. This may require the performance of checks, simple analysis
and diagnostics, and the ability to react to changes in an operational manner. Teamwork is often necessary.
The connection of solenoid coils to the supply voltage must only be carried out by persons with the appropriate electrical qualifications.
All operations must be carried out with responsibility for correctness and quality, as this is a dangerous area of product use.
It is forbidden for the following persons to carry out any activities related to this product:
› minors (the exception is practical training of pupils under the professional supervision of a teacher)
› without established professional competence
› under the influence of alcohol and/or drugs
› patients whose medical condition could affect safety (reduced attention and ability to react in time, excessive fatigue)
› under the influence of drugs that have a demonstrable effect on attention and timeliness
› allergic to hydraulic working fluids
6. Target user group
The valve is packaged in vacuum shrink-wrapped PE film and protected against moisture and dust as standard. An identification label is affixed to the
packaging.The products should only be stored for the necessary time at a temperature of 0 to +30 °C in a dry place with a relative humidity of up to
65 %. After extended periods of storage, we recommend checking the product for corrosion damage, replacing seal at the base of the body and
flushing the product with clean oil before connecting it to the hydraulic circuit.
Check that the valve type on the identification plate is correct.
Cut the packaging with scissors and carefully remove the valve from the packaging.
Unpack the valve in a clean place and prevent contamination of the valve.
The packaging is made of PE and can be easily contaminated with residual hydraulic oil from the valve.
Dispose of the packaging in accordance with applicable environmental regulations.
The mounting position of the valve is arbitrary. However, if vibrations or shocks are applied to the valve during operation, they must not be applied in
the direction of the spool axis.
7. Operating instructions broken down by product life stage
7.1 Transportation and storage of the product
7.2 Installation of the product
› Coils with AC power supply and rectifier are supplied with only the cable connected. Also, DC powered coils can be supplied by the manufacturer
with the cable attached upon request. If the directional control valve coils do not have a power cable connected, proceed as follows:
› A 6 to 8 mm outer diameter cable must be used to connect the coils to the power supply. If using a different type of grommet, follow the
grommet manufacturer‘s recommendations when selecting the cable diameter.
› Use a cable with sufficient insulation temperature class. For coil temperature class T4 this must be a cable with a minimum insulation temperature
resistance of +105 °C (+221 °F), for temperature classes T5 and T6 a cable with a temperature resistance of +90 °C (+194 °F). Furthermore, the
cable should be sufficiently protected against damage with respect to environmental conditions, e.g. resistant to mechanical damage or to the
effect of chemicals. Using an inbus wrench s=3, loosen the four M4x35 DIN 912 terminal cover screws. Carefully remove the cover . Do not
damage the cover seal (O-ring 45x2).
4x screw M4x35 DIN 912
terminal lid
CAUTION
Slippery valve surface
The valve contains a small amount of residual oil after a hydraulic function test carried out by the manufacturer.
If the surface of the unpacked valve is contaminated with oil, remove the oil using a cleaning cloth. A slippery
valve surface can cause the valve to fall during handling and cause minor injury or damage to the valve.
7.2.1 Electrical connection of coils
› Unscrew the grommet nut (5) of the cable grommet with the wrench a = 24, remove and check the grommet seal (2) for damage.
› Thread the cable through the removed grommet parts (2, 3, 5) and the grommet in the terminal lid (1).