Hydraulic Cylinder Precautions 2
Be sure to read before handling.
Selection
1.
¬
Operate after opening the air release valve
and completely releasing any internal air.
Residual air can cause a malfunction.
¬:KHQDGMXVWLQJWKHDLUUHOHDVHGRQRWORRVHQ
the plug too much.
Use caution, since loosening the plug too much may cause it to
fly out or fluid to blow out, posing a danger of human injury.
Air Release
Caution
1.
¬5HDGMXVWXVLQJWKHFXVKLRQQHHGOH
Cushion needles are adjusted at the time of shipment. When
the cylinder is put into service, the cushion needles should be
readjusted based on factors such as the size of the load and
the operating speed. When the cushion needles are turned
clockwise, restriction of the air flow becomes greater and thus
the cushioning effect also increases.
2.
¬
Do not operate with the cushion needle in a
fully closed condition.
This will contribute to the generation of surge pressure, and the
cylinder or equipment can be damaged.
Cushion
Caution
1.
¬
Install hydraulic fluid filters.
Provide your hydraulic system with hydraulic fluid filters with a
filtration degree of 10 m or finer.
5HIHUWR60&·VK\GUDXOLFILOWHUVSHFLILFDWLRQV
2.
¬
Use the product within the specified range of
fluid and ambient temperature.
Take measures to prevent freezing, since moisture in hydraulic
fluid will freeze at 0C or below, and this may cause damage to
seals and lead to a malfunction.
3.
¬
Use hydraulic fluid with a viscosity grade
equivalent to ISO VG32 or VG46.
Caution
1.
¬
Use clean fluid.
Do not use deteriorated fluid or fluid containing foreign matter,
moisture or corrosive additives, as this can cause the malfunc-
tion and damage or corrosion of parts.
Hydraulic Fluid
:DUQLQJ
¬ 0DNH VXUH WR DOLJQ WKH D[LV FHQWHU RI WKH
piston with the load and direction of move-
ment when connecting.
When not properly aligned, twisting of the piston rod and tubing
may occur, and damage may be caused due to wear on areas such
as the inner tube surface, bushings, piston rod surface and seals.
Allow for decentering of the axis either by aligning the axis
center or using a floating joint.
¬ :KHQ DQ H[WHUQDO JXLGH LV XVHG FRQQHFW WKH
piston rod end and the load in such a way that
there is no interference at any point within the
VWURNH
¬ 'R QRW VFUDWFK RU JRXJH WKH VOLGLQJ SDUWV RI
WKH F\OLQGHU WXEH E\ VWULNLQJ RU JUDVSLQJ LW
ZLWKRWKHUREMHFWV
Cylinder bores are manufactured to precise tolerances, so that
even a slight deformation may cause faulty operation.
¬'RQRWXVHXQWLO\RXYHULI\WKDWWKHHTXLSPHQW
can operate properly.
Following mounting, repairs, or conversions, verify correct
mounting by conducting suitable function and leakage tests
after piping and power connections have been made.
¬,QVWUXFWLRQPDQXDO
The product should be mounted and operated after the instruc-
tion manual is thoroughly read and its contents are understood.
Keep the instruction manual where it can be referred to as needed.
¬3URYLGHLQWHUPHGLDWHVXSSRUWVIRUORQJVWURNH
cylinders.
Provide intermediate supports for cylinders with long strokes to
prevent piston rod damage due to sagging of the piston rod,
deflection of the tube, vibration, and external loads.
0RXQWLQJ
Caution
1.
¬
Preparation before piping
Before piping is connected, it should be thoroughly blown out
with air (flushing) or washed to remove chips, cutting oil and
other debris from inside the pipe.
¬:UDSSLQJRISLSHWDSH
When screwing together pipes and fittings, be certain that chips from
the pipe threads and sealing material do not get inside the piping.
Also, when sealant tape is used, leave 1.5 to 2 thread ridges
exposed at the end of the pipe.
¬ 6HW XS VR WKDW DLU FDQQRW DFFXPXODWH LQVLGH
piping.
Piping
Caution
Wrapping
direction
Sealant tape
Expose approx.
2 threads
Operating Environment
:DUQLQJ
1.
¬
Do not use in environments where there is a
danger of corrosion.
Refer to the construction drawings regarding cylinder materials.
2.
¬
Install a protective cover if the product is to
be used in a dusty environment or where it
ZLOOEHH[SRVHGWRFKLSVDQGVSDWWHU
Series
CHS
2
9
