User manual MCCULLOCH HT420

[. . . ] Refer to these serial numbers when ordering parts, and when making technical inquiry. McCulloch generators are designed to give safe and dependable service if operated according to instructions. You can help prevent accidents by being familiar with your generator's controls, and by observing safety operating procedures. Understand the use of all generator controls, output receptacles, and connections. [. . . ] NOTE: Engine oil is a major factor affecting engine performance and service life. Non-detergent and 2-stroke engine oils will damage the engine and are not recommended. Check the oil level BEFORE EACH USE with the generator on a level surface with the engine stopped. Use McCulloch 4-stroke oil, or and equivalent high detergent, premium quality motor oil certified to meet or exceed U. Other viscosities shown in the chart may be used when the average temperature in your area is within the indicated range. Check the oil level (B) by inserting the dipstick into the filler neck without screwing it in. If the level is low, fill to the top of the oil filler neck with the recommended oil. LEG ASSEMBLY I Attach 2 legs (A) to the bottom of the generator frame (B) using nuts, flat washers, spring washers and bolts providS ed. We recommend unleaded gasoline because it produces fewer engine and spark plug deposits and extends exhaust system life. Occasionally you may hear light "spark knock" or pinging" (metallic rapping noise) while operating under heavy loads. If spark knock or pinging occurs at a steady engine speed, under normal load, change brands of gasoline. Before using the ground terminal consult a qualified electrician or electrical inspector for regulations in your area. aC Applications Before connecting an appliance or power cord to the generator: · Make sure that it is in good working order. Faulty appliances or power cords can create a potential for electrical shock. If an appliance begins to operate abnormally, becomes sluggish or stops suddenly, turn it off immediately. Disconnect the appliance, and determine whether the problem is the appliance, or if the rated load capacity of the generator has been exceeded. Make sure that the electrical rating of the tool or appliance does not exceed that of the generator, Never exceed the maximum power rating of the generator. Power levels between rated and maximum may be used for no more than 30 minutes. Exceeding the time limit for maximum power operation or slightly overloading the generator may not switch the circuit breaker OFF, but will shorten the service life of the generator. E Pull the starter grip lightly until resistance is felt, then pull briskly. N NOTE: Do not allow the starter grip to snap back against the engine. If you have manually closed the choke, move it to the OPEN position as the engine warms up. [. . . ] (3) For professional commercial use, log hours of operation to operation to determine proper maintenance intervals. Service more frequently when operating the generator in extremely dusty areas. E N G L I S H To ensure proper engine operation, the spark plug must be properly gapped and free of deposits. After the spark plug is seated, tighten with a spark plug wrench to compress the washer. [. . . ]