EM-1359
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3. Valve installation
3.1 Valve mounting surface dimensions
For the valve mounting surface, see the table below.
For the detailed dimensions of the mounting surface, see 2.3 or the installation drawing.
The mounting surface should have a good machined finish, e.g. surface roughness of 6-S.
Valve Model Number
Mounting Surface
ELDFG-01EH
Basically, conforming to ISO 4401-03-02-0-94.
ELDFG-03EH
Basically, conforming to ISO 4401-05-04-0-94.
* Use the dimensions of the valve mounting surface specified in 2.3 or the installation
drawing.
3.2 Required tools
Prepare the tools listed below.
Valve Model Number
Tool Name
Use
ELDFG-01EH
Hexagon Wrench
(Width Across Flats: 4 mm)
For M5 Valve Mounting Bolts
ELDFG-03EH
Hexagon Wrench
(Width Across Flats: 5 mm)
For M6 Valve Mounting Bolts
ELDFG-*EH
Phillips Screwdriver for M5 Screws
For Protective Screw for
NULL Adjuster Hole
3.3 Check of the valve mounting surface
(1) Any critical scratch on the valve's mounting surface may cause
fluid leakage. In particular, take extra care to ensure that there
is no critical scratch on the valve mounting surface of
equipment.
(2) Improper mounting of the O-rings may cause damage to them
or outflow of hydraulic fluid. Check that the O-rings are
properly mounted in the grooves.
3.4 Mounting position
Mount the valve with the angle of the axis line L-L' within about ±15° from the horizontal plane
as shown below.
CAUTION
CAUTION