TLV COSPECT, Инструкция по эксплуатации

Страница: 20 / 22

172-65254M-03 (A-COS-10) 27 Oct 2008
19
Troubleshooting Chart (continued)
Problem Symptom Cause Remedy
The adjustment screw
has seized Replace with a new
adjustment screw
The small hole on the
piston is clogged Clean
The diaphragm is
distorted or damaged Replace with a new
diaphragm
There is fluctuation in
air consumption Check the flow rate,
replace the
COSPECT if
necessary
Adjustment is
difficult, and set
pressure varies
The selected model is
inappropriate for the
service conditions
(specifications) Check the model
selection, replace the
COSPECT if necessary
The bypass valve is
leaking Check, clean, and
replace with a new valve
if necessary
The secondary
pressure
cannot be
adjusted or
increases
abnormally
(continued)
Upon closing the
valves on the
secondary side,
the secondary
pressure abruptly
rises as high as
the primary
pressure
There is a build-up of
dirt on or damage to
the pilot valve seat or
main valve seat Clean
Align
Replace if necessary
Occurs at low air
demand It is being operated
below the lower flow
rate limit Check the volume of air
supply, replace with a
smaller diameter valve
There is too high a
reduction ratio Change to an
acceptable operating
range Hunting never
stops
The selected model is
inappropriate for the
service conditions
(specifications) Check the model
selection, replace the
COSPECT if necessary
Condensate is
contained, or the trap is
blocked Check the trap
Check the piping
Hunting or
chattering
occurs
Chattering never
stops
The selected model is
inappropriate for the
service conditions
(specifications) Check the model
selection, replace the
COSPECT if necessary
Troubleshooting continued on next page