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INTRODUCTION
ROUTINE SERVICE
WARNING
SECTION 7 - MAINTENANCE
Procedures for maintenance are covered in this section. By follow-
ing these procedures and time frames, reliable and troublefree
operation is greatly increased.
Permit only qualified personnel to maintain the system.
Maintenance personnel must secure the system prior to
starting maintenance procedures. Altering or removing
components may affect safe operation of the device.
Use solvents only in well-ventilated areas. Avoid prolonged
or repeated breathing of vapors. Avoid prolonged or
repeated contact with skin. Solvents can cause nausea, diz-
ziness and skin irritation. In some cases, overexposure to
solvents has caused nerve and brain damage. Solvents are
flammable-do not use near extreme heat or open flame.
1. Annually, check all air connections for leakage while the posi-
tioner is under pressure. Use a soapsuds solution to check for
leaks.
2. Annually, check the signal diaphragm for leaks using a soap-
suds solution.
3. Maintain a clean air supply (free of dirt, oil, or moisture) to
ensure satisfactory operation of positioner. If recommended filter
is installed in supply line (refer to
Section 3), annually clean or replace the filter.
4. Annually clean pilot valve and stem with a low residue solvent.
Refer to
PILOT VALVE BODY
5. If Type AV positioner is equipped with a manifold assembly
(AV
1/2
). Annually replace filters (refer to
Section 8).
6. Annually check adjustments and calibration of positioner and
actuator. Refer to
GENERAL CALIBRATION
7. Annually, verify that the coupling between the positioner and
the actuator is tight.
Filtering Supply Air
in Section 8.
MANIFOLD
in Section 4.
INTRODUCTION
in
in
7 - 1
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Table of Contents
Troubleshooting
