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EL ECTRI C A L E Q U I PMENT ELECTRICAL PRECAUTIONS 86 The following guidelines are intended to ensure the on a vehicle ensure that the test equipment is working correctly and or connectors are in good condition, this particularly applies to mains leads and plugs. WARNING: Before commencing work on an ignition system, all high tension terminals, adaptors and for testing should be inspected to ensure that they are adequately insulated and shielded of shock. Wearers of surgically implanted pacemaker devices should not be in close proximity to Polarity Never connect the vehicle battery and always observe the correct polarity when connecting test High voltage circuits Whenever disconnecting live high tension circuits allow the open end of a high tension lead to come into contact with coil terminals while the engine is running, since, high can occur on these terminals. Connectors and harness Always ensure that items are dry and oil before disconnecting and connecting test equipment. connectors apart either by using tools or by pulling o n the wiring harness. Always locking tabs are disengaged before removal and note orientation to enable correct reconnection. Ensure that the component and support the disconnected harness. When replacing the component keep oily hands away from electrical connection areas and push Battery disconnecting , Before disconnecting the battery, switch off all electrical equipment. Battery charging Recharge the battery out of the vehicle and keep the top well ventilated. While being charged or discharged, gas which is flammable. Always ensure any battery charging area is well GENERAL PRECAUTIONS Switch-off ignition prior to making any connection or as clcctrical surge caused by disconnecting connections can damage electronic componcnts. Ensure hands and work surfaces are clcan and of grease, swarf, etc. as grease collects dirt which can When handling printed circuit boards, treat them as - hold by edges only. Prior to commencing a test, and periodically during a socket, to discharge body static as some clcctronic components are vulnerable to static electricity. TEST EQUIPMENT A range of ‘Fast Check’ testers is available to provide a of faults in electronic systems currently fitted to Land and Range Rover vehicles. It is essential that operators familiarise themselves with t h e of the system to be checked and t h e instruction for the relevant fast check test before |