Elkhart Brass 70133000 Electric Valves - Manual (Page 24)

24
VII MAINTENANCE AND TROUBLESHOOTING
MAINTENANCE
Routine Maintenance
For normal operating conditions, routine maintenance is not required. It is recommended that a visual
inspection for grease leakage or external damage is performed every two years. When conditions are severe
(frequent operation or high temperatures), seal and lubricant replacement is recommended every two years.
Important: Anytime covers are removed, check the condition of all sealing components. If
damaged, replace with factory recommend replacement parts prior to reassembly.
Recommended Inspections:
- Ensure there is no grease leaking from the actuator housing.
- Check external parts for possible damage. Replace any damage or broken parts immediately. Refer to
chapter 8 for a parts listing.
- Repaint all areas where paint is damaged or missing. In chemically aggressive or saline environments,
remove rust from surfaces and protect with a rust preventative.
- Check that all nuts and bolts securing the actuator to the valve are tight.
- For severe applications or if actuator operation is infrequent, perform maintenance checks more often.
Special Maintenance
For actuator disassembly, refer to the exploded view drawings and associated parts list contained in this
manual. If parts are required, the serial number of the actuator along with the item number of the part will be
required.
TROUBLESHOOTING
If problems during setup or normal operation are encountered, proceed as follows:
Basic Checks:
- Ensure the power supply to the actuator matches the values shown on the nameplate of the actuator.
- Ensure there is power at the actuator terminal strip, Terminals 1, 2, and 3.
- With power energized, the green LED will illuminate to indicate there is power available to the
actuator.
- Dipswitch SW3: must be in the “off” position.
Actuator does not work electrically
- Ensure that the voltage at terminals L1 and L2 (and for 3 phase applications L3) is correct.
- De-energize the power to the actuator.
- Remove the cover assembly.
- Check the continuity of the wires between terminals L1, L2 (and for 3 phase applications L3) and the
connector of the power card.
- If there is no continuity on the L1-L2-L3 cables, replace the terminal board; if there is continuity,
check the fuse mounted on the power card.
- Replace if bad.