Sealey TL85 Instructions Manual

Also see for TL84: Instructions

Instructions for: TIMING LIGHTSModel Nos: T L 8 4 & T L 8 5Thank you for purchasing a Sealey product. Manufactured to a high standard this product will, if used according to these instructionsand properly maintained, give you years of trouble free performance.1. SAFETY INSTRUCTIONSIMPORTANT: PLEASE READ THESE INSTRUCTIONS CAREFULLY. NOTE THE SAFE OPERATIONAL REQUIREMENTS, WARNINGS & CAUTIONS.USE THE PRODUCT CORRECTLY AND WITH CARE FOR THE PURPOSE FOR WHICH IT IS INTENDED. FAILURE TO DO SO MAY CAUSEDAMAGE AND/OR PERSONAL INJURY AND WILL INVALIDATE THE WARRANTY. PLEASE KEEP INSTRUCTIONS SAFE FOR FUTURE USE.DANGER! - BE AWARE, LEAD-ACID BATTERIES GENERATE EXPLOSIVE GASES DURING NORMAL BATTERY OPERATION. FOR THIS REASON IT ISVERY IMPORTANT TO READ AND FOLLOW THESE INSTRUCTIONS CAREFULLY, EACH TIME YOU USE THE TIMING LIGHT. Follow theseinstructions and those published by the battery manufacturer and the maker of any equipment you intend to use in the vicinity ofthe battery. Remember to review warning marks on all products and on engines. ,1.1. PERSONAL PRECAUTIONS3 Ensure there is another person within hearing range of your voice and close enough to come toyour aid should a problem arise when working near a lead-acid battery.3 Wear safety eye protection and protective clothing. Avoid touching eyes while working near battery.3 Have fresh water and soap nearby in case battery acid contacts skin, clothing, or eyes.3 Wash immediately with soap and water if battery acid contacts skin or clothing. If acid enters eye, flush eye immediately with cool, cleanrunning water for at least 15 minutes and seek immediate medical attention.3 Remove personal metallic items such as rings, bracelets, necklaces and watches. A lead-acid battery can produce a short-circuit currenthigh enough to weld a ring or the like to metal and may cause severe burns.3 Ensure hands, clothing (especially belts) are clear of fan blades and other moving or hot parts of engine, remove ties and contain long hair.7 DO NOT smoke or allow a spark, or flame, in the vicinity of battery or engine.3 Remember that a flashing timing light ëfreezesí rotating components. DO NOT be tempted to touch an apparently stationary componentwhich is, in fact, rotating.p WARNING! When ignition is on DO NOT touch any ignition components - very high voltages are present.1.2. GENERAL SAFETY INSTRUCTIONSp WARNING! When running an engine in an enclosed space ensure adequate ventilation or ducted exhaust. Exhaust gases kill.3 Keep children and unauthorised persons away from the working area.3 Ensure vehicle transmission is in ëNeutralí (manual) or ëParkí (automatic) and the parking brake is applied.3 Ensure the ignition is switched off before attaching the power clamps to the battery.3 Keep tools and other items away from the engine and ensure that you can see the battery and working parts of engine clearly.3 If the battery terminals are corroded or dirty, clean them before attaching the timing light clamps.7 DO NOT dis-assemble the timing light for any reason. The timing light must only be checked by qualified service personnel.p WARNING! DO NOT allow metal tools or equipment to accidentally touch battery terminals since this may produce sparks or a short circuitresulting in an explosion.7 DO NOT cross-connect leads from the timing light to the battery. Ensure positive (+) (RED) is to positive and negative (-) BLACK is to negative.If symbols cannot be distinguished, negative terminal is normally the one directly connected to the vehicle bodywork (check vehicle hand-book).7 DO NOT allow inductive pick-up, or leads, to contact exhaust or other engine parts as the heat will cause damage.7 DO NOT pull the cables or clamps from the battery terminals.7 DO NOT use the timing light outdoors, or in damp, or wet locations, and DO NOT operate within the vicinity of flammable liquids or gases.7 DO NOT use the timing light for a task for which it is not designed.3 When not in use, store the timing light in a safe, dry, childproof location.TL84 AND TL85. Composite cased Xenon timing light with inductive impulse pick up. 8000rpm Maximum. Supplied with 1.5 mtr of coiled 12Vpower supply lead, complete with female 4 pin socket that plugs into the timing light handle, Inductive coupler and operating instructions.TL85 Measures timing advance range 0 - 60∫ BTDC.Specifications: TL84 TL85Ignition Advance 0∞- 60∞ BTDCMax rpm 8000 8000Operating Voltage 12V 12V2. INTRODUCTION & SPECIFICATIONS3. WHAT IS TIMING?In order for an automobile engine to function, three things are necessary: air, fuel and a spark to ignite the air/fuel mixture and create anexplosion. The precise instant of the explosion must be timed so that maximum force is delivered to the engineís piston. This is ìtimingî. Eachengine manufacturer tells its factory the exact timing necessary for various engines so that every possible amount of power is obtained fromeach litre of fuel. As normal engine and ignition systems wear, the timing can change, thereby reducing both power and mileage. With theTL84 or TL85 Timing Light, you can reset the timing to the manufacturerís standard, regain lost power and increase mileage.Timing is given in Degrees Before Top Dead Centre (BTDC) or After Top Dead Centre (ATDC). In order to completely burn the air/fuel mixturein the carís cylinders, most timing is such that the spark occurs at a point several degrees BTDC (for example 4∞ BTDC). This ensures that thefull power of the explosions obtained (see fig 1).Two additional terms used when describing timing are ëAdvancedí and ëRetardedí.As shown in figure 1, when the timing is advanced the spark will occur BTDC. On some late model cars equipped with various emissioncontrol devices, the timing is retarded so that the spark occurs ATDC. Timing is changed by adjustment of the ignition distributor.In order to allow setting and adjustment of the engine timing, timing marks are provided on each engine during assembly. In most cases,these marks appear on the engine vibration damper or fan pulley at the lower front of the engine (figure 1). On some early engines, this markwas shown at the rear of the engine on the flywheel.TL84 & TL85 - 1 - 151003

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