Poulan PR270A Owners Manual - Page 17

SERVICE AND ADJUSTMENTS DRIVE BELT REPLACEMENT (See Fig. 21) TO REMOVE DRIVE BELT 1. Remove auger belt. See "TO REMOVE AUGER BELT" in this section. 2. Remove tensioner spring attached to drive belt tensioner arm. 3. Remove return spring holding the swing plate in place. 4. Remove arm bolt and drive belt tensioner arm. 5. Remove pulley bolt, engine pulley, and drive belt from engine. 6. Remove the top bolt holding the swing plate to frame assembly. 7. Pivot and hold the swing plate away from snow thrower and remove drive belt from drive pulley. TO INSTALL DRIVE BELT 1. Pivot and hold swing plate away from snow thrower. Place drive belt onto drive pulley. Ensure drive belt is routed in drive pulley groove properly before lowering swing plate. 2. Install previously removed top bolt. Tighten securely. 3. Place drive belt into engine pulley groove before installing onto engine shaft. 4. Install previously removed pulley bolt and secure engine pulley onto engine. Tighten securely (30-35 Ft. Lbs. / 41-47 Nm). 5. Install drive belt tensioner arm and arm bolt onto engine. Tighten securely. 6. Install return spring onto swing plate. 7. Install tensioner spring onto tensioner arm. 8. Operate all controls to ensure belts are installed properly and that all components are moving correctly. 9. Install auger belt. See "TO INSTALL AUGER BELT" in this section. ENGINE PULLEY ARM BOLT PULLEY BOLT DRIVE BELT TENSIONER ARM TENSIONER SPRING DRIVE PULLEY DRIVE BELT TOP BOLT RETURN SPRING SWING PLATE AFTER REPLACING BELT(S) 1. INSTALL BELT COVER and two (2) screws. Tighten securely. 2. INSTALL DISCHARGE CHUTE - See "INSTALL DISCHARGE CHUTE / CHUTE ROTATER HEAD" in the Assembly section of this manual. TO REMOVE WHEELS (See Fig. 22) • Remove the wheel pin and retainer pin and remove wheel from axle. NOTE: To seal punctures or prevent flat tires due to slow leaks, tire sealant may be purchased from your local parts dealer. Tire sealant also prevents tire dry rot and corrosion. WHEEL PIN (INSTALL IN OUTER HOLE OF AXLE ONLY) RETAINER PIN OUTER HOLE AXLE WHEEL WHEEL HUB FIG. 22 ENGINE SEE ENGINE MANUAL CARBURETOR Your carburetor is not adjustable. Engine performance should not be affected at altitudes up to 2,134 meters. If your engine does not operate properly due to suspected carburetor problems, take your snow thrower to a service center/department. ENGINE SPEED Never tamper with the engine governor, which is factory set for proper engine speed. Overspeeding the engine above the factory high speed setting can be dangerous and will void the warranty. If you think the engine-governed high speed needs adjusting, contact a service center/department, which has the proper equipment and experience to make any necessary adjustments. FIG. 21 17