User manual MCCULLOCH HC70

[. . . ] In the manual there will be the following call-outs: NOTE:, WARNING / CAUTION and WARRANTY. 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. [. . . ] 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. Hold nose of guide bar up and turn adjustment screw (D) CLOCKWISE to increase chain tension. After making adjustment, and while still holding nose of bar in the uppermost position, tighten the bar retaining nuts securely. Chain has proper tension when it has a snug fit all around and can be pulled around by gloved hand. NOTE: If chain is difficult to rotate on guide bar or if it binds, too much tension has been applied. Decrease tension by turning the bar adjustment screw COUNTERCLOCKWISE slowly. Using a Phillips or slotted screwdriver - turn screw 1/4 to 1/2 turn clockwise (to the right). (Figure 5-2H) NOTE: If chain turns while idling - turn screw back to the left until chain stops and unit continues to idle. Mix fuel with Genuine McCulloch brand 2 cycle oil in an approved container. Use mixing table for correct ratio of fuel to oil. The retreat path should extend back and diagonally to the rear of the expected line of fall, as illustrated in Figure 6-1A. As the felling cut gets close to the hinge, the tree should begin to fall. 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. nOTE: Direction of fall (B) is controlled by the notching cut. 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. Release trigger and allow engine to return to idle speed. Press STOP switch down to stop engine Figure 5-4A. NOTE: For emergency stopping, simply activate CHAIN BRAKE® and move STOP switch down. [. . . ] Chain sharpening requires special tools to ensure that cutters are sharpened at the correct angle and depth. For the inexperienced chain saw user, we recommend that the saw chain be professionally sharpened by the nearest Authorized Service Center. If you feel comfortable sharpening your own saw chain, special tools are available from the nearest Authorized Service Center. Most guide bar problems can be prevented merely by keeping the chain saw well maintained. [. . . ]