CARE & MAINTENANCE
Under normal circumstances the Freeman range of welding inverter machines are virtually
maintenance free. However certain points should be observed to ensure the trouble free
operation of the machine. Amongst these are regular checks as described below, the
frequency of these checks will depend on the type of environment the unit will be operated
within and the overall usage of the equipment.
CAUTION
Any internal inspection, testing or repairs to the equipment should only be carried out by
personnel trained and qualified to do so. The following description of tests either visual or any
other are extracts of various Standards regarding the safe servicing and maintenance of
electrical equipment. The following recommendations are for guidance only and we suggest
that they are completed at least once every 12 months or in the case of excessively high use
more often as required.
VISUAL CHECKS
The unit should be inspected externally for visible faults (without opening the unit). In the
course of this inspection the following points should be checked and if necessary service and
repair should be arranged immediately.
Ŷ
Any damage to the mains supply plug or cable. Examine for any signs of faulty insulation,
scorching of pressure marks.
Ŷ
Ensure all cable glands and fittings are secure and that no kinking or twisting of the
supply cable has occurred.
Ŷ
Check the machine outer casings for any sign of cracking or breakage.
Ŷ
Inspect welding and work return leads for any breakdown in insulation. Ensure connection
plugs, welding torch, electrode holder and earth clamp assemblies are damage free and
secure.
Ŷ
Check for any signs of overloading or improper use and that no unauthorized
modifications have been carried out to the equipment.
Ŷ
Make sure that the mains power on / off switch is functioning correctly.
MEASUREMENT OF INSULATION RESISTANCE
Depending on National and Company Standards insulation testing should be completed and
carried out to the relevant safety laid down criteria. For full instruction and guidance on this
subject contact either the supplier or the manufacturer of the unit.
OPEN CIRCUIT VOLTAGE
Testing the open circuit voltage of the unit should be carried out in accordance to the Standard
EN60974-1. Copies of which can be obtained from the National Standards Authority or the
equivalent Authority in the country the equipment is being used. If outside the EU contact the
standards authority for that region.
FUNCTION TEST
A periodic function test of the equipment should be completed to ensure the unit performs and
operates in line with the original specification for the unit as supplied.
CAUTION
Only spares which are of Inverter Fusion Limited origin, will be deemed fit for purpose. Any
other makes or type used in any repair or servicing procedure will render any and all statutory
rights invalid.
18
18
24pp A5 Instruction Manual.indd 21
28/9/06 3:33:17 pm