Poulan PR20H42STA User Manual - Page 21

SERVICE AND ADJUSTMENTS TO REPLACE MOWER BLADE DRIVE BELT (See Fig. 23) The mower blade drive belt may be replaced without tools. Park the tractor on level surface. Engage parking brake. BELT REMOVAL • Remove mower from tractor (See "TO REMOVE MOWER" in this section of this manual). • Work belt off both mandrel pulleys and idler pulleys. • Pull belt away from mower. BELT INSTALLATION • Install new belt in reverse order of removal. • Make sure belt is in all pulley grooves and inside all belt guides. • Install mower in reverse order of removal instructions. IDLER PULLEYS MANDREL PULLEYS FIG. 23 TO ADJUST BRAKE (See Fig. 24) Your tractor is equipped with an adjustable brake system which is mounted on the side of the transaxle. If tractor requires more than six (6) feet stopping distance at high speed in highest gear, then brake must be adjusted. • Depress clutch/brake pedal and engage parking brake. • Measure distance between brake operating arm and nut "A" on brake rod. • If distance is other than 1-9/16", loosen jam nut and turn nut "A" until distance becomes 1-9/16". Retighten jam nut against nut "A". • Road test tractor for proper stopping distance as stated above. Readjust if necessary. If stopping distance is still greater than six (6) feet in highest gear, further maintenance is necessary. Contact your nearest authorized service center/department. WITH PARKING BRAKE "ENGAGED" 1-9/16" NUT "A" JAM NUT OPERATING ARM DO NOT TOUCH THIS NUT. IF FURTHER BRAKE ADJUSTMENT IS NECESSARY CONTACT YOUR NEAREST AUTHORIZED SERVICE CENTER/DEPARTMENT FIG. 24 TO REPLACE MOTION DRIVE BELT (See Fig. 25) Park the tractor on level surface. Engage parking brake. For assistance, there is a belt installation guide decal on bottom side of left footrest. • Remove mower (See "TO REMOVE MOWER" in this section of this manual.) • Remove belt from stationary idler and clutching idler. • Pull belt slack toward rear of tractor. Carefully remove belt upwards from transmission input pulley and over cooling fan blades. • Pull belt toward front of tractor and remove downward from around engine pulley. • Install new belt by reversing above procedure. ENGINE PULLEY CLUTCHING IDLER STATIONARY IDLER TRANSMISSION INPUT PULLEY FIG. 25 21