Land Rover TestBook User Manual - Eng
Contents
1. If the filter is visibly dirty replace it using the following procedure NOTE NEVER operate TestBook without a ran cooling fan filter in place 1 Turn OFF TestBook and unplug the power supply from the power point 2 Locate the raised cooling port on the back of TestBook 3 Use your fingers to pinch and remove the filter retaining clip Remove the old filter Push a new filter into place Replace the retaining clip Restore external power NOUR In some cases the old filter can be cleaned and reused Wash it in warm water and allow it to dry fully before reusing Do not reuse a filter if it does not wash clean Never reuse a torn or damaged filter 252. FUSE REPLACEMENT TESTBOOK 1 TestBook is protected by a 1 Amp fuse to prevent the internal circuitry from being damaged The fuse will not burn out under normal operation However the following situations may cause the fuse to burn out 1 Making a connection to a power source beyond the limits of TestBook s instrumentation 2 Connecting the Roving Probes to electrical current while TestBook is measuring for resistance How to Check the Fuse 1 Turn OFF TestBook and unplug the power supply from the power point 2 Locate the fuse on the rear panel of TestBook When facing the back panel it is located on the lower left hand side just below where it is marked 1 0 A 3 Twist the fuse holder counter clockwise using a small screwdriver After about an eighth of a turn the fuse will come out 4 Remove the fuse and inspect the filament When burned it will be broken 5 If the fuse has blown substitute it with a new fuse rated at 1 Amp It must be exactly the same physical size Never use a fuse rated higher than 1 Amp nor a fuse with a larger glass case 6 Insert the fuse and fuse holder back into TestBook Push it in gently while turning clockwise to secure it into place TESTBOOK FAN FILTER TESTBOOK 1 Replacement procedure There is a cooling fan with an air inlet on the rear panel of TestBook The cooling fan filter needs to be checked frequently to assure that it is not contaminated with dirt and grease
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