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Troubleshooting
Air Cylinder Internal Leaks
To help prevent injury from moving parts,
keep clear of carriage when actuating
solenoid outputs. Perform Pressure
Relief Procedure, page 7, before
working on equipment.
1.
Run unit in Diagnostics Screen #3 in the
following conditions (See Information,
page 38).
NOTE: Unit will actuate while in the
diagnostics screen.
2.
Perform pressure relief procedure, see,
Pressure Relief Procedure, page 7.
3.
To diagnose air cylinder internal leaks,
unplug the air lines connected to the
solenoid parts listed in the table below,
starting with the top row. See, Solenoid
Ports Reference, page 51, for port
locations.
Output
Output
'1'
'2'
Off
Off
Off
Off
On
On
4.
Close air drain valve.
5.
There should be NO air flow from air
cylinders to these ports. If there is air
flow, the cylinder has an internal leak
and needs to be replaced. Refer to Air
50
Output
Ports to unplug
'C'
and check
2, 5, 6, 10, 11,
Off
13
On
7,8
1, 3, 9, 12, 14,
Off
16
Line Connection Sequence, page 63,
when re-connecting air lines.
6.
If no airflow is observed, perform
pressure relief procedure, see Pressure
Relief Procedure, page 7.
7.
Reconnect air lines disconnected in step
3. Disconnect the air lines in the second
row of the table above.
8.
Close air drain valve.
9.
Actuate control board output 'C', see the
Notes:, page 47, under Solenoid
Manifold Operation, page 46.
10. If no airflow is observed, deactivate
control board output 'C; and preform
pressure relief procedure, see Pressure
Relief Procedure, page 7.
11. Reconnect air lines disconnected in step
7 and disconnect those in the third row of
the table above
12. Close air drain valve.
13. Actuate control board outputs '1', '2', and
'C', see the Notes:, page 47, under
Solenoid Manifold Operation, page
46.
14. If no airflow is observed, deactivate
control board output 'C; and preform
pressure relief procedure, see Pressure
Relief Procedure, page 7.
15. Reconnect air lines disconnected in step
11.
16. If there are no leaks on any of the ports,
then there is an internal leak inside the
solenoid manifold, and the solenoid
manifold will need to be replaced.
3A8108A
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