Poulan P3818 User Manual - Page 17
Carburetor Adjustment, Idle Speed--t, Cooling System
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File Holder File Cutter 90˚ Depth Gauge S Align the 30˚ file holder marks parallel with the bar and to the center of the chain. Cutter 30˚ Cutter File Holder Line S Sharpen cutters on one side of the chain first. File from the inside of each cutter to the outside. Then, turn the chain saw around and repeat the pro- cess for the other side of the chain. S File on the forward stroke only. Use 2 or 3 strokes per cutting edge. S Keep all cutters the same length when filing. S File enough to remove any damage to cutting edges (side plate and top plate of cutter). All Cutters Remove Damage Same Length Top Plate Side Plate S File chain to meet the specifications as shown. 80˚ 60˚ 30˚ Hook Angle 0.025 inch (0.65 mm) Right Too Much Hook Angle Rounded Corner Squared Off Corner Wrong WARNING: Maintain the proper hook angle according to the manufacturer's specifications for the chain you are using. Improper hook angle will increase the chance of kickback which can result in serious injury. 4. Check and lower depth gauges. Depth Gauge Tool File Depth Gauge S Place gauge tool on cutter. S If the depth gauge is higher than the depth gauge tool, file it level to the top of the depth gauge tool. S Maintain rounded front corner of depth gauge with a flat file. NOTE: The very top of the depth gauge should be flat with the front half rounded off with a flat file. If you require further assistance or are unsure about performing this procedure, contact your authorized service dealer or call our customer assistance help line at 1--800--554--6723. CARBURETOR ADJUSTMENT WARNING: The chain will be mov- ing during most of this procedure. Wear your protective equipment and observe all safety precautions. The chain must not move at idle speed. The carburetor has been carefully set at the factory. Adjustments may be necessary if you notice any of the following conditions: S Chain moves at idle. See IDLE SPEED--T adjusting procedure. S Saw will not idle. See IDLE SPEED--T adjusting procedure. Idle Speed--T Allow engine to idle. If the chain moves, idle is too fast. If the engine stalls, idle is too slow. Adjust speed until engine runs without chain movement (idle too fast) or stalling (idle too slow). The idle speed screw is located in the area above the primer bulb and is labeled T. S Turn idle screw (T) clockwise to increase engine speed. S Turn idle screw (T) counterclockwise to decrease engine speed. If you require further assistance or are unsure about performing this procedure, contact your authorized service dealer or call our customer assistance help line at 1--800--554--6723. COOLING SYSTEM To keep the working temperature as low as possible the machine is equipped with a cooling system. The cooling system consists of: S Air intake on the starter S Air guide plate S Fins on the flywheel S Cooling fins on the cylinder S Cylinder cover (directs cold air over the cylinder) Clean the cooling system with a brush after each use, more often in demanding conditions. A dirty or blocked cooling system results in the machine overheating which causes damage to the piston and cylinder. 17