User manual MCCULLOCH HC60

[. . . ] a NOTE: is used to convey additional information , to highlight a particular explanation , or to expand a description. A WARNING or CAUTION identifies a procedure which, if not undertaken or if improperly done, can result in serious personal injury and/or damage to the unit. The (WARRANTY SYMBOL) serves notice that unless instructions or procedures are followed, any damage caused will void the warranty and repairs will be at owner's expense. They are written for your protection and contain important information you must know to safely operate your chain saw. [. . . ] NOTE: The guide bar retaining nuts are installed only hand tight at this point because saw chain adjustment is required. Proper tension of saw chain is extremely important and must be checked before starting, as well as during any cutting operation. Taking the time to make needed adjustments to the saw chain will result in improved cutting performance and prolonged chain life. A new saw chain stretches, requiring adjustment after as few as 5 cuts. This is normal with a new chain, and the interval between future adjustments will lengthen quickly. The CHAIN BRAKE® is DISENGAGED (chain can move) when BRAKE LEVER IS PULLED BACK AND LOCKED. The CHAIN BRAKE® is ENGAGED (chain is stopped) when brake lever is in forward position and the chain brake latch is in the off position. If strong resistance is felt, or lever does not move into either position, do not use your saw. If saw chain is TOO LOOSE or TOO TIGHT, the sprocket, bar, chain, and crankshaft bearings will wear more rapidly. Study Figure 3-4B for information concerning correct cold tension (A), correct warm tension (B), and as a guide for when saw chain needs adjustment (C). Always wear heavy duty gloves when handling saw chain or making saw chain adjustments. When tree begins to fall, remove saw from cut, stop engine, put chain saw down, and leave area along retreat path (Figure 6-1A). If chain does not stop, turn engine off and take your unit to the nearest Authorized Service Center for service. If CHAIN BRAKE® functions properly, turn the engine off and return the CHAIN BRAKE® to the DISENGAGED position. If felling a tree on sloping ground, the chain saw operator should keep on the uphill side of the terrain, as the tree is likely to roll or slide downhill after it is felled. Before any cuts are made, consider the location of larger branches and natural lean of the tree to determine the way the tree will fall. NOTE: For emergency stopping, simply activate CHAIN BRAKE® and move STOP switch down. Do not cut down a tree during high or changing winds or if there is a danger to property. Do not cut down a tree if there is a danger of striking utility wires; notify the utility company before making any cuts. Normally felling consists of 2 main cutting operations, notching (C) and making the felling cut (D). Start making the upper notch cut (C) on the side of the tree facing the felling direction (E). The notch (C) should be deep enough to create a hinge (F) of sufficient width and strength. [. . . ] Keep the oil tank filled with Genuine McCulloch Chain, Bar and Sprocket Oil. Adequate lubrication of the bar and chain during cutting operations is essential to minimize friction with the guide bar. Running the saw dry or with too little oil will decrease cutting efficiency, shorten saw chain life, cause rapid dulling of chain, and lead to excessive wear of bar from overheating. Chain sharpening requires special tools to ensure that cutters are sharpened at the correct angle and depth. [. . . ]