Poulan 1994-06 User Manual - Page 8
Chain, Tension
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D. CHAIN TENSION • Chain Tension is very important- - - A loose chain will wear the bar and itself. - A loose chain can jump off bar during cutting. - A tight chain can break or damage the saw and/ or bar. • The chain stretches during use, especially when new. Check tension periodically as follows: - each time the saw is used; - more frequently when the chain is new; - as the chain warms up to normal operating temperature. • Chain tension is correct when the chain can be lifted about 1/8" from the Guide Bar at a point near the middle of the bar and will move freely around the bar. • Chain tensioning procedure: CAUTION: Always wear gloves when handling the chain. The chain is sharp and can cut you even when it is not moving! 1. Lift up the tip of the guide bar and turn the adjusting screw clockwise until the chain does not sag beneath the guide bar. Figure 9 . 2. Check the tension by lifting the chain from the guide bar at the center of the bar. Figure 10 . 3. Continue adjusting the adjusting screw until the tension is correct. 4. Tighten the bar clamp nuts with the bar wrench. 5. Recheck chain tension. E. BAR AND CHAIN OIL • The guide bar and cutting chain require continuous lubrication to remain in operating condition. Lubrication is provided by the automatic oiler system when oil tank is kept filled. - Lack of oil will quickly ruin bar and chain. - Too little oil will cause overheating, resulting in smoke coming from the chain and/or discoloration of the guide bar rails. • Genuine POULAN/POULAN PRO Bar and Chain Oil is recommended to protect your unit against excessive wear from heat and frietion. POULAN/POULAN PRO oil resists high temperature thinning. If POULAN/ POULAN PRO Bar and Chain Oil is not available, use a good grade SAE 30 oil. Never use waste oil for bar and chain lubrication. • In freezing weather oil will thicken, making it necessary to thin bar andchain oil with a small amount of Diesel Fuel #1or kerosene. Bar and chain oil must be free flowing for oil systerhIn pump enough oil for adequate lubrication. 1. USE THE FOLLOWING: 30° or above - 100% lubricant - undiluted. 30°- 0°F - 95% lubricant to 5% Diesel Fuel #1or kerosene. Below 0°F - 90% lubricant to 10% Diesel Fuel #1 or kerosene. 2. HOW TO FILL THE OIL TANK a. Stop the engine. b. Turn saw on its side, oil cap up. Figure 11 . c. Loosen cap slowly and wait for pressure in the tank to be released before removing the cap. d. Fill the oil tank. Figure 12 . e. Replace the oil cap securely. Adjusting Screw Turn 1101 To Tighten Tension Figure 9 Turn To Loosen Tension Chain Can Be Lifted 1/8" When Tension Is Correct 0 A_O C Figure 10 3. IMPORTANT POINTS TO REMEMBER a. Fill oil tank each time you fill fuel tank to ensure that there will be sufficient oil for the chain whenever you start and run the saw. b. The saw will normally use about one tank of chain oil for each tank of fuel mixture. If less oil is used, check for a plugged oil hole in the guide bar. c. Keep sawdust and debris cleaned from the oil holes in the guide bar to allow an adequate oil flow to the bar and chain. d. Keep spilled and spattered oil wiped from the unit'to avoid sawdust and debris build-up. Pay particular attention to oil on the fan housing and starter assembly to avoid overheating the engine. e. It is normal for a small amount of oil to appear under the saw after the engine stops. This is excess oil draining from the bar and chain when the saw is not in use. Oil Cap tar 0 e 0 Figure 11 Figure 12