SERVICE AND ADJUSTr IENTS FRONT-TO-BACK ADJUSTMENT (See Figs° 20 and 21)- IMPORTANT; DECK MUST BE LEVEL SIDE-TO-SIDE, tF THE FOLLOWING FRONT-TO-BACK ADJUSTMENT IS NECESSARY, BE SURE TO ADJUST BOTH FRONT LINKS EQUALLY SO MOWER WILL STAY LEVEL SIDE-TO-SIDE, ....... ..../,,jllllllll .............. ............ , ,,=1,,,.i , i, TO REPLACE MOWER DRIVE BELT MOWER DRIVE BELT REMOVAL (See Fig. 22) - ° Park tractor on a level surface. Engage parking brake. ° Remove four screws from L.H, mandrel cover and remove cover.
To obtain the best cutting results, the mower housing should be adjusted so the front is approximately 1/8"to 1/2" lower than the rear when the mower is in its highest position° Check adjustment on right side of tractor. Measure dis- tance "F" directly in front of and behind the mandrel at bottom edge of mower housing as shown. ° Before making any necessary adjustments, checkthat both front links are equal in length_ ° If links are not equal in length, adjust one link to same length as other link.
° To !owerfrontof mowerhousing, loosen nut"G" on both front links an equal numberof turns° o When distance "F" is 1/8" to 1/2" lower at front than rear, tightennut"H" against trunnionon both front links° o To raise front of mower housing,loosen nut "H" from trunnion on both front links. Tighten nut "G" on both front links an equal number of turns° ° When distance "F" is 1/8" to 1/2" Dower at front than rear, tighten nut "H" against trunnion on both front links. ° Roll belt over the top of L.Ho mandrel pulley. = Remove belt from electric clutch pulley. o Remove belt from idler pulleys.
= Remove any dirt or grass clippings which may have accumulated around mandrels and entire upper deck surface. o Checkprimarj idler arm and two idlers to see that they rotate freely, o Be sure spring is securely hooked to primary idler arm and bolt in mower housing_ MOWER DRIVE BELT INSTALLATION (See Fig. 22) - Install belt in both idlers. Make sure belt is in both belt keepers at the idlers as shown° o Install new belt onto electric clutch pulley. ° Roll belt into upper groove of L,H, mandrel putley. o Carefully check belt routing making sure belt is in the grooves correctly and inside belt keepers, Reassemble L,H_ mandrel cover, NOTE:
Each full turn of nut "G" will change dim, "F" by approximately 3/8", o Recheck side-to-side adjustment., LH. SCREWS ELECTRIC MANDREL SPRING CLUTCH COVER IDLER PULLEY PULLEYS MANDREL PRIMARY IDLER ARM FIG. 20 BOTH FRONTLINKS SHOULDBE EQUALIN LENGTH BOLTIN MOWER HOUSING MANDREL MOWER DRIVE BELT BELT KEEPER FIG. 22 NUT "H" FRONT LINKS FIG. 21 22