rev. 1904 (EX - FW 6.4)
11 /20
6. MAINTENANCE
The maintenance schedule depends on use and operating conditions but. generally. it should not exceed three months.
The maintenance operations have to be made by specialised personnel. in compliance with safety rules.
“Routine and Extraordinary Maintenance Forms” later in this manual.
WARNING: If you detect a problem and you can not take immediate action to solve it, please make sure the
charger is identified as not working and " NOT to be used "
6.1 Preliminary recommendations
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Before performing maintenance or repairs make sure the AC power plug and the battery are both disconnected.
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Carefully clean all parts: the charger, the battery, the cables, all the plugs etc.
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If the power cord or battery cables show signs of wear and are also partially damaged, please have them replaced
immediately by qualified personnel.
6.2 Put the equipment out of service
When you want to do a Routine or Extraordinary maintenance on your Battery Charger. or you do not want to use it for a long
time or there is a fault. you must put it out of service.
Please follow these instructions:
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If the charger is in use switch it Off.
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Turn the AC mains switch to “Off” position and disconnect the plug.
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Disconnect the battery plug.
Should you wish not to use your charger for a long period, store it in a cool, dry & safe place.
The AC main plug and the battery plug must be lifted off the floor and secured.
6.3 Routine Maintenance
Perform maintenance every 3 months or any time necessary.
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Clean carefully the AC and battery cables. Check they are not damaged or burnt. Replace them immediately if found
damaged in any way.
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Check the AC mains and battery plugs. If they are crushed or burnt or damaged. replace them immediately.
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Electrical equipment must not be exposed to dust and humidity. Clean the Battery Charger. Should it be too dirty or
damp. move it in a safer place. The same applies for the battery.
6.4 Extraordinary Maintenance
Perform maintenance every year or when a problem occurs (i.e. burnt fuse) or you notice a fault.
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Follow the checklist of “Routine maintenance”.
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Open the Battery Charger. Clean carefully the dust on each component: the printed circuits by a clean soft brush; on the
other components by a blow of compressed air; Blower should be at least 20 cm (8 inch) away.
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Check the screws and electrical connections are well tightened. The use of a thermal imaging camera is an excellent way
to understand if there are loose connections or weak points where you must intervene. The charger should be on for at
least 10 minutes before you make measurements
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Check the fuses. the fuse holders and the moving mechanical parts (contactor).
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Request in advance for replacement parts that are not available at your site.
7. WARRANTY
Duration
Espex guarantees the Battery Charger against manufacturing defects for 3 years.
Starting date The delivery date from Espex is considered the starting date of the warranty.
Covering
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Defective components will be repaired or replaced free of charge.
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Labour is free of charge at Espex site in Cardiff; If carried out nearby at customer/users’s site it will be
on chargeable basis.
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Delivery costs of replacement components are at consignee’s expense.
Loss of right Warranty is not valid in case of:
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Instructions stated in this Manual and on the Charger front panel are not observed.
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Improper use, violation or modification of the charger.
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Charger being used out the permitted ranges specified.
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Charger being used outside the defined parameters in accordance with product specifications. As a
general rule the number of charge cycles is <300 cycles / year for the Wa profile chargers.
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Evidence that both ordinary and extraordinary maintenance were not carried out on the charger.
