Cosmo LS-R700 User Manual

124 9 Troubleshooting
9
5
5
F
F
r
r
e
e
q
q
u
u
e
e
n
n
t
t
(
(
+
+
)
)
F
F
a
a
i
i
l
l
s
s
Follow the procedures below to identify the cause of the frequent fails and remedy the problem.
1 Perform a No-Leak Check with the stop valves on the rear panel closed.
If the LS-R700 is not leaking, the cause of the frequent fails is something else. Proceed to the next item to check.
Contact Cosmo for repair if internal leak is found.
2 Check the fixture condition.
Probable Cause Treatment
Leaks from tube fittings Look for leaks in the fittings by performing a bubble test applying soap
solution.
Redo the tubing if needed.
Deformation of tube Replace the tube with the harder one that does not deform with the air
pressure.
Proceed to the next item to check if the problem persists without identifiable.
3 Check the sealing condition.
Probable Cause Treatment
Sealing material is missing. Place the sealing material.
Sealing surface is contaminated. Clean the sealing surface.
Sealing material is damaged or
worn-out.
Replace it with a new one.
Sealing deforms when the fixture
clamps.
Check the follows:
• Whether the clearance between the sealing material and the groove is
enough
• Wear of the stopper
• Whether the size and hardness of the sealing material are appropriate
• If the thrust force of the cylinder has lowered
Proceed to the next item to check if the problem persists without identifiable.
4 Check whether there were environmental changes.
Probable Cause Treatment
Tested part is exposed to the direct
wind from air conditioner or fan.
Move the source of the wind to where the wind directly hits the tested
parts.
Some air tools are branched off the
pressure source for the LS-R700
causing fluctuation in the pressure
source.
Avoid using air tools branching off the pressure source for the tester to
supply a stable air.
Setting up a dedicated pressure source for the LS-R700 is recommended.
Air compressor capacity is
insufficient.
Use the air compressor whose capacity is large enough.
The current compensation value
may not be suitable for the current
environmental condition.
Update the compensation value.
Proceed to the next item to check if the problem persists without identifiable.

Cosmo LS-R700 Specifications

General

Brand	Cosmo
Model	LS-R700
Category	Test Equipment
Language	English