Poulan 1994-01 User Manual - Page 18

GENERAL MAINTENANCE A. MAINTENANCE SAFETY 1. Maintain the unit according to recommended procedures. Keep cutting line at the proper length. 2. Never start engine with clutch shroud removed. The clutch can fly apart and cause serious injury. 3. Disconnect the spark plug before performing maintenance except for carburetor adjustments. 4. Make carburetor adjustments with the lower end supported to prevent the trimmer line from contacting any object. 5. Keep others away when making carburetor adjustments. 6. Besure blade ortrimmerhead stops turningwhen engine idles. See "Carburetor Adjustments." 7. Replace blade or trimmer head parts that are cracked, chipped,or damaged in anyother waybefore using the unit. 8. Use only POULAN PRO .080" diameter line. Never use wire, rope, string, etc. 9. Use only genuine POULAN PRO replacement parts as recommended. 10. Inspect the entire unit. Replace damaged parts. Check for fuel leaks and make sure all fasteners are in place and securely fastened. B FLEXIBLE DRIVE SHAFT LUBRICATION • Lubricate the drive shaft: - After ear.h ten (10) hours of operation. - Before operatingif the unit has been stored for 90 days or longer • To order flex shaft babe, see the Accessory List for the proper part number. A WARNING If the engine is hot, avoid touching the muffler. A hot muffler can cause serious burns. 4. Check drive shaft for broken wires, twists, or kinks, and replare if damage is found. 5. Using a clean cloth, wipe the surface of the drive shaft thoroughly to remove any old grease. 6. Apply a nniform coat of lube to the entire surface of the drive shaft. 7. Inject the remaining contents of the container into the top of the tube. CATITION: I Laythe driveshaft ona cleansurface. Avoid layingshaft on the floor, ground or on any other surface that may have dirt or debris. Even after wiping the shaft, grease residue can pick up particles that can cause damage or premature failure. I CAT1TTON: Take care to avoid injury to your hands and rs with broken wires when checking for e or wiping the drive shaft. A cloth will not prevent broken wires from puncturing or tearing your skin. 8. Reinstall the drive shaft in the tube. Figure 23 (inset). 9. Reassemble the gear box to the tube. Tighten screws securely. Locating Screw Gear Box Tube 1. Remove the gear box damp screw and the locating screw from the gear box. Figure 23 . 2. Remove gear box from the tube. Figure 23 . Gear Box Clamp Screw 3. Remove the drive shaft from the tube. Figure 23 (inset). Figure 23 C. AIR FILTER NOTE: A dirty air filter decreases the life and performance of the engine and increases fuel consumption. 1. Clean the Air Filter: • Always after 5 tanks of fuel or 5 hours of operation, which ever is less. • More frequently, in dusty conditions. a. Loosen thetwoscrewson theair filter cover enough to remove the cover from the engine. Figure 24 . b. Remove air filter from cover. Figure 24 . c. Wash filter in soap and water d. Squeeze filter dry and replace in cover. CATT170N: Do not clean the air filter in gasoline or other flammable solvent to avoid creating a fire hazard. - 18 Choke .--Exit Slot _e a) Air Air Filter Filter Cover Choke Figure 24 Corners e. Reinstall the air filter cover, making sure the choke exit slot (Figure 24) is placed over the choke lever. I CAUTION: j Make sure air filter is fitted into corners of the cover to keep dust from entering engine and causing engine damage. NOTE: If replacing the air filter, see the Accessory List for the proper part number.