Poulan 172787 User Manual - Page 23

TO REMOVE / REPLACE DRIVE BELT FRONT WHEEL GEAR DRIVE • Remove drive cover. Remove belt from gearcase pulley by pushing down on pulley and rolling belt off it. • Turn lawn mower on its side with air filter and carburetor up. • Remove blade. • Remove debris shield. • Remove belt from engine pulley on crankshaft. • Install new belt by reversing above steps. NOTE: Always use factory approved belt to assure fit and long life. GEAR CASE WITH METAL HOUSING: Drive cover Belt Belt keeper PUSH DOWN FRONT WHEEL BELT DRIVE • Remove drive cover by removing screw at rear of cover. • Remove belt from drive pulley. • Remove hubcaps and nuts from both front (drive) wheels. Remove wheels and washers from wheel adjusters. • At left (drive) wheel only, remove E-ring, pinion, roll pin, felt washer and dust cover. Dust cover Drive cover Belt PUSH DOWN Nut Washer Hub cap Felt washer GEAR CASE WITH PLASTIC HOUSING: Roll pin E-ring Pinion Drive cover Belt PUSH DOWN "AUTO WALK" OR "VARI-SPEED" ONLY • Remove drive cover and belt keeper. • Remove belt from gearcase pulley by pushing down on pulley and rolling belt off it. • Turn lawn mower on its side with air filter and carburetor down. • Remove blade and debris shield. • Remove belt from engine pulley on crankshaft. • Install new belt by reversing above steps. NOTE: Always use factory approved belt to assure fit and long life. • Remove retainer clip from drive shaft on left side of driven pulley. • While holding driven pulley, slide drive shaft to the right until belt can be removed from opening in housing. • Pull belt free from idler and take out of clutch frame. • Reverse procedure to install new belt. NOTE: When re-assembling pinion, be sure that the felt washer is in place behind the roll pin and that the roll pin is seated in the slots on the bearing and in the back of the pinion. Upper adjustment hole Clutch frame Drive pulley Clutch pulley Idler Lower hole (original and new belt position) Driven pulley 23 Drive shaft Retainer clip