Assessments - 4, GPA: 3.5
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30). 4. Remove spark plug with spark plug socket wrench. DO NOT USE ANY OTHER TOOL. Do not sand blast, WARNING: scrape or clean electrodes. Grit in the engine could damage the cylinder. 5. Check electtrode gaps with wire feeler gauge and set gaps to .025” (.635mm) if necessary. 6. Reinstall a new spark plug. NOTE: A resistor spark plug must be used for replacement (part no. 9295-310502). NOTE: This spark ignition system meets all requirements of the Canadian Interferen-Causing Equipment Regulations. G H Fig. 30 CARBURETOR ADJUSTMENT The carburetor was pre-set at the factory for optimum performance. If further adjustments are necessary, please take your unit to the nearest Authorized Service Center listed in the Yellow Pages. Call 1-800-345-8746 for more information. 17 MAINTENANCE AND REPAIR INSTRUCTIONS MAINTENANCE AND REPAIR INSTRUCTIONS STORING A CHAIN SAW Sprocket Tip Lubrication Never store a chain CAUTION: saw for longer than 30 days without performing the following procedures. Storing a chain saw for longer than 30 days requires storage maintenance. Unless the storage instructions are followed, fuel remaining in the carburetor will evaporate, leaving gum-like deposits. This could lead to difficult starting and result in costly repairs. 1. Remove the fuel tank cap slowly to release anypressure in tank. Carefully drain the fuel tank. 2. Start the engine and let it run until the unit stops toremove fuel from carburetor. 3. Allow the engine to cool (approx. 5 minutes). 4. Using a spark plug wrench, remove the spark plug. 5. Pour 1 teaspoon of clean 2-cycle oil into thecombustion chamber. Pull starter rope slowly severaltimes to coat internal components. Replace sparkplug (Fig. 31). NOTE: Store the unit in a dry place and away from possible sources of ignition such as a furnace, gas hot water heater, gas dryer, etc. Fig. 31 REMOVING A UNIT FROM STORAGE 1. Remove spark plug. 2. Pull starter rope briskly to clear excess oil fromcombustion chamber. 3. Clean and gap spark plug or install a new spark plugwith proper gap. 4. Prepare unit for operation. 5. Fill fuel tank with proper fuel / oil mixture. See Oil and Fuel Information. GUIDE BAR MAINTENANCE Frequent lubrication of the guide bar (railed bar which supports and carries the saw chain) sprocket tip is required. Proper maintenance of the guide bar, as explained in this section, is essential to keep your saw in good working condition. The sprocket tip on CAUTION: your new saw has been pre-lubricated at the factory. Failure to lubricate the guide bar sprocket tip as explained below will result in poor performance and seizure, voiding the manufacturer’s warranty. Lubrication of the sprocket tip is recommended after 10 hours of use or once a week, which ever occurs first. Always thoroughly clean guide bar sprocket tip before lubrication. The Lube Gun (optional) is recommended for applying grease to the guide bar sprocket tip. The Lube Gun is equipped with a needle nose tip which is necessary for the efficient application of grease to the sprocket tip. Fig. 32 To lubricate the sprocket tip: 1. Move the STOP switch down. NOTE: It is not necessary to remove the saw chain tolubricate the guide bar sprocket tip. Lubricationcan be done on the job. 2. Clean the guide bar sprocket tip. 3. Using the Lube Gun (optional), insert tip of lube guninto the lubrication hole and inject grease until itappears at outside edge of sprocket tip (Fig. 32). 4. Rotate saw chain by hand. Repeat lubrication procedureuntil the entire sprocket tip has been greased. SAW CHAIN / BAR LUBRICATION Adequate lubrication of the saw chain is essential at all times to minimize friction with the guide bar. Never starve the bar and chain of oil. Running the saw with too little oil will decrease cutting efficiency, shorten saw chain life, cause rapid dulling of chain, and cause excessive wear of bar from overheating. Too little oil is evidenced by smoke, bar discoloration or pitch build-up. NOTE: Saw chain stretches during use, particularly when it is new, and it will occasionally be necessary to adjust and tighten it. New chain will require adjustment after about 5 minutes of operation. AUTOMATIC OILER Your chain saw is equipped with an automatic gear driven oiler system. The oiler automatically delivers the proper amount of oil to the bar and chain. As the engine speed increases, so does the oil flow to the bar pad. There is no flow adjustment. The oil reservoir will run out at approximately the same time as the fuel supply runs out. 18 MAINTENANCE AND REPAIR INSTRUCTIONS MAINTENANCE AND REPAIR INSTRUCTIONS GUIDE BAR MAINTENANCE: Most guide bar problems can be prevented merely by keeping the chain saw well maintained. Insufficient guide bar lubrication and operating the saw with chain that is too tight will contribute to rapid bar wear. To help minimize bar wear, the following guide bar maintenance procedures are recommended. BAR WEAR - Turn guide bar frequently at regular intervals (for example, a...
Este manual também é adequado para os modelos :Benzo e serras - MTD1425NAV (11.89 mb)
Benzo e serras - MTD1642AVCC (11.89 mb)