Assessments - 4, GPA: 4.3
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USE EXTREME CAUTION ON SLOPES When operating on sloping ground, use extreme caution and common sense to avoid possible injury or property damage. Do not mow on excessively steep slopes! Avoid slopes if greater than 150 or wherever footing is unsure. If a slope is difficult to stand on, it is probably too steep to trim or mow. In this case, it may be wiser to establish a permanent ground cover on this area. Do not trim on slopes when the ground is slippery. Trim across the face of a slope, not up and down. Slow down and exercise caution when changing direction on slopes. USE CORRECT WALKING SPEED Use a walking speed that is suitable for the conditions at hand. For example, you’ll get better trimming and mowing results at slower walking speeds if the grass is tall or lush. Shorter grass or less dense growth can be cut at faster travel speeds. VARY THE THROTTLE SETTING ACCORDING TO CONDITIONS The majority of trimming and mowing jobs will yield the best results if the Engine Throttle Control is set at the fastest engine speed. Less demanding jobs that require very precise cutting will yield better results if the engine throttle is backed off somewhat to reduce engine speed. (For example, damage to trees and ornamentals can be avoided by reducing the engine speed; using the lighter .130" diameter line; and by keeping a safe distance away.) Again, once you begin a particular job and get a “feel” for the conditions, you will be able to make adjustments for the best possible results. KEEP THE MOWED SIDE TO YOUR RIGHT AS YOU MOVE AHEAD The trimmer/mower feeds cut materials to the right side. Stay on the right side of unmowed growth as you move along. NOTE: If the trimmer is operated in a stationary position with the wear cup in contact with dry vegetation, significant heat will result that may deform the plastic spindle or scorch vegetation. Section5 Maintenance 11 WARNING Before inspecting, cleaning or servicing the machine, shut off engine, disconnect spark plug wire, and make sure that all moving parts have come to a complete stop. Remove ignition key on electric start models. Failure to follow these instructions can result in personal injury or property damage. NOTE: LEFT and RIGHT sides of unit are as viewed from operator’s position behind the handlebars. REQUIRED MAINTENANCE SCHEDULE REQUIRED MAINTENANCE BEFORE EACH USE EVERY 5 HOURS EVERY 25 HOURS EVERY 100 HOURS AS NOTED CHECK ENGINE OIL LEVEL • • CHECK TRIMMER/MOWER LINES • 1 CHECK TRIMMER HEAD ENGAGEMENT • ENGINE/MACHINE CLEANING • 3 CHECK NUTS AND BOLTS • CHANGE ENGINE OIL • 2, 5 SERVICE AIR FILTER SYSTEM • 5 CLEAN UNDER DECK • GENERAL LUBRICATION • INSPECT DRIVE BELT • CLEAN ENGINE • 4 CHECK WEAR CUP • 6 Chart 5-1 NOTE 1 – New line replacement is suggested when old line is 50% or less of original length. NOTE 2 – Change oil after first two hours of new operation; thereafter every 25 hours. NOTE 3 – Clean daily if used in extremely dusty/dirty conditions (see Engine Owner’s Manual). NOTE 4 – Clean before using machine and at each fuel refill. NOTE 5 – Service more often if used in extremely dusty or dirty conditions (see Engine Owner’s Manual). NOTE 6 – Replace when severe gouges exist on bottom surface. ADJUSTING TRIMMER HEAD ENGAGEMENT The tension on the drive belt must be correct for proper operation of the trimmer head. If the tension is correct, the trimmer head will rotate when the Trimmer Head Control Bail is pulled back against the handlebar (another indication of correct tension is if the engine stalls when the trimmer head becomes bound up in very tough material.) A worn or loose drive belt will slip on its pulleys, causing the trimmer head to move slowly, or not at all, when the control bail is engaged (belt squealing may also be noticeable). If the tension is too tight, the trimmer head may rotate before the control bail is engaged, or when there is no free play in the control bail. TO ADJUST BELT TENSION 1. Stop the engine and wait for all parts to stop moving. Adjust the position of the two nuts on the control cable adjustment stud (see Figure 5-2) as described next: a. To tighten belt tension, move the upper nut (A, Figure 5-2) upward, then move the lower nut (B) upward. Tighten both nuts securely. b. To loosen belt tension, move the lower nut (B, Figure 5-2) down and then the upper nut (A) down. Tighten both nuts securely. B A Figure 5-2: Belt tension adjustment. 12 Section 5: Maintenance Before inspecting, cleaning or servicing the machine, shut off engine, wait for all moving parts to come to a complete stop, disconnect spark plug wire and move wire away from spark plug. Failure to follow these instructions can result in serious personal injury or property damage. WARNING REMOVING AND REPLACING THE TRIMMER HEAD 1. Stop the engine and wait for all moving parts to stop. Disconnect spark plug wire and move it away from the spark plug. Remove the ignition key on electric start models. 2. Two bolts (A, Figure 5-3) secure the trimmer head (B) ...
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