18:13. Safety locks
Safety locks serve in order that break off a chain when current reaches a certain value to protect elements and wires which can be damaged by too strong current. Sharp increase in current is usually caused by malfunction in a chain, most often short circuit.
Designations of the chains protected by safety locks are specified on a cover of the block of safety locks.
Before removal of a safety lock switch off the corresponding chain (or ignition), then get a safety lock from contacts. In a safety lock the wire has to be visible; if the safety lock fused, the wire will be torn or melted.
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Always use safety locks of the required power. Never use a safety lock of other power and do not replace it with something another.
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Do not replace a safety lock more than once, without having eliminated a malfunction source. The current protected by a safety lock is specified from above on a safety lock: pay attention that safety locks have various colors for identification simplification.
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If the safety lock fuses right after replacement, do not replace it again, yet do not establish, and do not remove a cause of defect. In most cases the short circuit caused by low insulation is a cause of defect. If the safety lock protects several chains, try to find a chain because of which the safety lock fuses, including each of chains in turn (if it is possible). Always have a set of spare safety locks of various power in the car. They have to be fixed at the basis of the block of safety locks.