Cautions
Specifications
Model No.
Indication
Lever Design
Dimensions
External
Dimensions
Accessories
Performance
Curve
Lever Installation/
Removal Procedure
model
LHA-A
Swing Clamp
Quick Change Lever Type A
Cautions
●
Notes for Design
1）Check Specifications
●
Please use each product according to the specifications.
2）Notes for Circuit Design
●
Please read "Notes on Hydraulic Cylinder Speed Control Unit" to assist
with proper hydraulic circuit designing. Improper circuit design may
lead to malfunctions and damages. (Refer to page 17)
●
Ensure there is no possibility of supplying hydraulic pressure to the
lock and release ports simultaneously.
3）Swing lever should be designed so that the moment of inertia is small.
●
Large moment of inertia will degrade the lever's stopping accuracy
and cause undue wear to the clamp.
Additionally, the clamp may not function, depending on supplied
hydraulic pressure and lever mounting position.
●
Please set the allowable operating time after the moment of inertia
calculated.
Please make sure that the clamps work within allowable operating
time referring to the allowable operating time graph.
4）When using on a welding fixture, the exposed area of piston rod
should be protected.
●
If spatter gets onto the sliding surface it could lead to malfunction
and fluid leakage.
5）When clamping on a sloped surface of the workpiece
●
Make sure the clamp surface and mounting surface of the clamp
are parallel.
6）When using an offset lever for LHE-A (Quick Change Lever Type A)
●
Clamp point should be in the range of 90° towards lever
tightening part.
●
Installation Notes
1）Check the Usable Fluid
●
Please use the appropriate fluid by referring to the Hydraulic Fluid List.
2）Procedure before Piping
●
The pipeline, piping connector and fixture circuits should be cleaned
by thorough flushing.
●
The dust and cutting chips in the circuit may lead to fluid leakage
and malfunction.
●
There is no filter provided with Kosmekʼ s product except for a part
of valves which prevents foreign materials and contaminants from
getting into the air circuit.
3）Applying Sealing Tape
●
Wrap with tape 1 to 2 times following the screw direction.
●
Pieces of the sealing tape can lead to oil leakage and malfunction.
●
In order to prevent a foreign substance from going into the product
during the piping work, it should be carefully cleaned before working.
4）Installation of the Product
●
When mounting the clamp, use hexagon socket bolts as multiple
bolt holes for mounting (with tensile strength of 12.9)
and tighten them with the torque shown in the chart below.
Tightening with greater torque than recommended can depress
the seating surface or break the bolt.
6）Swing Speed Adjustment
●
Adjust the speed following "Allowable Swing Time Graph".
If the clamp operates too fast the parts will wear out leading to
premature damage and ultimately complete equipment failure.
●
Please make sure to release air from the circuit before adjusting
speed. It will be difficult to adjust the speed accurately with air
mixed in the circuit.
●
Turn the speed control valve gradually from the low-speed side
(small flow) to the high-speed side (large flow) to adjust the speed.
7）Air Bleeding of the Hydraulic Circuit
●
If the hydraulic circuit has excessive air, the action time may become
very long. If air enters the circuit after connecting the hydraulic port
or under the condition of no air in the oil tank, please perform
the following steps.
① Reduce hydraulic pressure to less than 2MPa.
② Loosen the cap nut of pipe fitting closest to the clamp by one full turn.
③ Wiggle the pipeline to loosen the outlet of pipe fitting.
Hydraulic fluid mixed with air comes out.
④ Tighten the cap nut after bleeding.
⑤ It is more effective to bleed air at the highest point inside the circuit
or at the end of the circuit.
(Set an air bleeding valve at the highest point inside the circuit.)
8）Checking looseness and retightening
●
At the beginning of the machine installation, the bolt and nut may
be tightened lightly. Check the looseness and re-tighten as required.
Tightening Torque (N･m)
4.0
8.0
8.0
14
14
33
Thread Size
M4×0.7
M5×0.8
M5×0.8
M6×1
M6×1
M8×1.25
LHA0360-□-A
LHA0400-□-A
LHA0480-□-A
LHA0550-□-A
LHA0650-□-A
LHA0750-□-A
Model No.
Tightening Torque (N･m)
2.5
5.0
5.0
8.0
8.0
20
Tightening Bolt Size
M4×0.7
M5×0.8
M5×0.8
M6×1
M6×1
M8×1.25
LHA0360-□-A
LHA0400-□-A
LHA0480-□-A
LHA0550-□-A
LHA0650-□-A
LHA0750-□-A
Model No.
●
Hydraulic Fluid List
5）Installation / Removal of the Swing Lever
●
Oil or debris on the mating surfaces of the lever,
taper sleeve or piston rod may cause the rod to loosen.
Please clean them thoroughly before assembly.
●
Tighten the tightening bolt of swing lever with the torque shown below.
Tightening with greater torque than recommended can damage
the bolt and lever tightening function.
●
Pin for stopper and phasing (prepared by customer) is used
as phasing when mounting the lever and as stopper when
removing the lever. If you are not using a pin for stopper and phasing,
a stopper is required to remove the lever.
●
Installation Procedure
① Install in order of swing lever, wedge 1, wedge 2 to the rod.
② Pull the lever towards the wedge side and tighten the
tightening bolt with the specified torque.
●
Removal Procedure
① By loosening tightening bolt, wedge function is released
and the lever can be removed.
Stopper
Wedge 1
Tightening Bolt
Wedge 2
Rod
Swing Lever
Pin for Stopper and Phasing
Lever Tightening Part
Max. Lever Length
90°
Clamp Point Range
90°
Ex.1
Ex.2
Stopper example for lever removal when
not using pin for stopper and phasing.
Pin for Stopper
and Phasing
Showa Shell Sekiyu
Idemitsu Kosan
JX Nippon Oil & Energy Corporation
Cosmo Oil
ExxonMobil
Matsumura Oil
Castrol
Manufacturer Name Wear Resistant Hydraulic Fluid
Tellus S2 M32
Daphne Hydraulic Fluid 32
SUPER HYRANDO 32
COSMO HYDRO AW32
MOBIL DTE24
HYDROL AW32
HYSPIN AWS32
Multi Purpose Universal Fluid
Morlina S2B 32
Daphne Super Multi Oil 32
SUPER MULPUS DX 32
COSMO NEW MIGHTY SUPER 32
MOBIL DTE24LIGHT
Note：
As it may be difficult to purchase the products as shown in the table
from overseas, please contact the respective manufacturer.
ISO Viscosity Grade ISO-VG-32
16
15
