suggested preventative maintenance for induction generators · 2018. 8. 21. · action check list....
TRANSCRIPT
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Suggested Preventative Maintenance for
Induction Generators
Phone: +1 (248) 364-4750 | www.eldec.net
http://www.eldec.nethttp://www.eldec.net
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Copyright
© 2018 eldec LLC | All Rights Reserved.
For permission to reprint an excerpt with a link to the original eBook, please contact eldec via email at [email protected].
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Table of Contents
Copyright ............................................................................ i
Table of Contents .............................................................. ii
Preface -- Before You Begin ............................................ iii
Chapter 1 -- Action Check List ........................................ 4
Chapter 2 -- Cleaning the Water Filter ............................ 5
Chapter 3 -- Replacing the PLC Battery ......................... 7
Chapter 4 -- Coil Installation Tips ................................... 9
Chapter 5 -- Contact eldec LLC .................................... 11
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Before you begin...
Prior to performing any maintenance, switch off and secure the main disconnect / breaker for the incoming power to the generator.
Maintenance should be carried out by trained personnel. Requests for training should be directed toward eldec LLC’s service department:
Phone: +1 (248) 364-4750
Email: [email protected]
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Action Check List1
Suggested PreventativeMaintenance
– eldec LLC
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MaintenanceItem
Action Interval
Inductor
Check for tightness. Remove dirt and check for any visible damage. Remove the inductor when necessary. Clean the pads and re-install coil (See Chapter 4).
Before each use
Cables, Cable assembly
Check all cables (power, water) for visible damage or water leakage.
Before each use
Water Filter Clean filter (See Chapter 2).Every 3 months (if required)
PLC - BatteryReplace battery (See Chapter 3).
Every 4 years
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Cleaning the Water Filter!2
Remove filter• Switch off main disconnect.
• Turn off the water supply.
• Remove 4x Allen screws (1)
• Remove the cover (2) of the water supply.
• Remove and clean the filter (3).
• During assembly, check the correct position of the seal (4) between the cover (2) and housing.
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Draining the cooling circuitSome eldec induction heating systems include check valves in the cooling circuit that prevent the draining of the cooling circuit against the direction of flow. To overcome this obstacle, eldec recommends all systems be emptied in the direction of flow by blowing compressed air into the water inlet at a pressure not to exceed 20 psi. If your system does not include a check valve, you may blow compressed air into the system from the water outlet side.
Wear safety goggles and appropriate clothing.
Drain the cooling circuit after long use and before cleaning or before moving – especially shipping in cold climates.
• Turn off the main disconnect.
• Disconnect the water supply.
• Drain the system via the drain (water outlet) of the cooling circuit.
• Blow compressed air into the water inlet at a pressure not to exceed 20 psi.
• For generators without check valves (most single output generators only) compressed air can be blown against the flow direction. This should still be limited to 20 psi.
Cleaning the cooling circuitClogged cooling circuits can lead to generator damage and equipment malfunctions.
Consult eldec’s service department for more details:
Phone: +1 (248) 364-4750
Email: [email protected]
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Replacing the PLC Battery!3
PLC Battery FX3U Controller
Battery Type and Order Number (current model generators):FX3UBL
eldec order number 9380358
SERVICE LIFE OF THE BATTERYBattery lifetime is affected by environment temperature and self-discharge rate.
• Lifetime is approximately 5 years. After 4 to 5 years the battery should be changed.
• Bat SPS is displayed and a warning message appears when the battery power is weak.
• On the PLC (programmable logic controller) inside the generator an additional message “BATT” appears.
• The data will be stored for approximately another month after the message first appears.
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REPLACING THE BATTERY FOR FX3U-CONTROLLERReplace battery within 20 seconds or with the unit’s control voltage turned on, otherwise data loss will occur in the PLC memory (RAM).
• Switch off main disconnect.
• Lift up cover on the lower edge (1) and remove cover of the housing (2).
• Remove the battery (3) from the holder.
• Disconnect the plug-in connection (4).
• Plug in new battery.
• Insert new battery into holder.
• Replace the top cover of the housing (2).
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Coil Installation Tips4
Mounting induction heating coils improperly often causes problems that eventually require service calls. According to eldec Engineering Services Manager Mark Kozlowski, installing coils correctly can prevent costly down time and repairs.
Installing coils correctly can prevent costly down time and repairs.
– eldec LLC Engineering Service Manager Mark Kozlowski
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Note: This coil drawing may differ from the coil you are using. Please consult your user manual.
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When mounting an induction heating coil keep the following steps and tips in mind:
1. Turn off cooling water.
2. Turn off the main switch.
3. Place a bucket under the inductor to capture leaking cooling water.
4. Loosen the nuts (6) on the coax face plates (2) in order to release the coil clamps (5).
5. Pull the inductor (1) towards the top and remove.
6. Clean both contact surfaces (3) with a Scotch-BriteTM pad.
7. Check both O-rings (4) for damage and replace them if necessary.
8. Check both contact surfaces (3) for damage.
9. Insert the new coil. Make sure the coil and the coaxial transformers have a tight fit.
Use the following torques when tightening the nuts:
Please also be aware of the following:
• Over-tightening can lead to thread stripping on the nuts (6).
• Under-tightening can lead to:
• Arcing between the coil and coax contact surfaces (3), which can lead to surface pitting.
• Current running through the stud to the clamp, which can melt the stud.
Caution! Be sure to use only brass nuts and washers!
If you have additional questions regarding mounting induction heating coils, feel free to contact eldec’s technical hotline at +1 (248) 364-4750.
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M6 nuts = 9 Nm. M8 nuts =13 Nm. M10 nuts = 19 Nm.
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Contact eldec LLC5
Call: +1 (248) 364-4750 Email: [email protected]
Address: 3355 Bald Mountain Rd, Unit 30, Auburn Hills, MI, 48326 USA Website: www.eldec.net
Induction Heating Systems and Coils are made in Auburn Hills, Michigan.
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eldec’s knowledgeable service technicians can help make maintaining your induction heating systems easier. Request a service call or give us a call. When calling, please have model and serial numbers available. Training options are also available.
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