Poulan PB19H42YT User Manual - Page 21

SERVICE AND ADJUSTMENTS NOTE: Each full turn of the adjustment nut will change mower height about 1/8". • Recheck measurements, adjust if necessary until front tip of blade is 1/8" to 1/2" lower than the rear tip. • Hold adjustment nut in position with wrench and tighten jam nut securely against adjustment nut. TO REPLACE MOWER DRIVE BELT (See Fig. 26) MOWER DRIVE BELT REMOVAL • Park tractor on a level surface. Engage parking brake. • Lower attachment lift lever to its lowest position. • Remove any dirt or grass clippings which may have accumulated around mandrels and entire upper deck surface. • Remove belt from electric clutch pulley (M), both mandrel pulleys (R) and all idler pulleys (S). MOWER DRIVE BELT INSTALLATION • Install belt around all mandrel pulleys (R) and around idler pulleys (S) as shown. • Install belt onto electric clutch pulley (M). IMPORTANT: Check belt for proper routing in all mower pulley grooves. • Raise attachment lift lever to highest position. S M TO REPLACE MOTION DRIVE BELT (See Fig. 27) Park the tractor on level surface. Engage parking brake. For assistance, there is a belt installation guide decal on bottom side of left footrest. BELT REMOVAL • Remove mower (See "TO REMOVE MOWER" in this section of manual). NOTE: Observe entire motion drive belt and position of all belt guides and keepers. • Remove belt from stationary idler (A) and clutching idler (B). • Remove belt from centerspan idler (C). • Pull belt slack toward rear of tractor. Remove belt upwards from transaxle input pulley (D). • Remove belt downward from engine pulley (E). • Slide belt toward rear of tractor, off the steering plate (F) and remove from tractor. BELT INSTALLATION • Install new belt from tractor rear to front, over the steer- ing plate (F) and above clutch brake pedal shaft (G). • Pull belt toward front of tractor and roll belt onto engine pulley (E). • Pull belt toward rear of tractor. Carefully work belt down around transaxle input pulley (D). Be sure belt is inside the belt keeper. • Install belt on centerspan idler (C). • Install belt through stationary idler (A) and clutching idler (B). • Make sure belt is in all pulley grooves and inside all belt guides and keepers. • Install mower (See "TO INSTALL MOWER" in this section of manual). R R FIG. 26 TO CHECK BRAKE If tractor requires more than five (5) feet to stop at highest speed in highest gear on a level, dry concrete or paved surface, then brake must be serviced. You may also check brake by: • Park tractor on a level, dry concrete or paved surface, depress brake pedal all the way down and engage parking brake. • Disengage transmission by placing freewheel control in "transmission disengaged" position. Pull freewheel control out and into the slot and release so it is held in the disengaged position. The rear wheels must lock and skid when you try to manually push the tractor forward. If the rear wheels rotate, then the brake needs to be serviced. Contact a qualified service center. 21 E F A G B C D FIG. 27