Poulan 139700 - Manual (Page 21)

SERVICE AND ADJUSTMENTS
TO REPLACE MOWER DRIVE BELT
(See Figs. 28 and 29)
Park the tractor on level surface. Engage parking brake.
BELT REMOVAL -
• Place attachment clutch in “DISENGAGED” position.
• Turn height adjustment knob to lowest setting.
• Move attachment lift lever forward to lower mowerto its
lowest position.
• Roll belt off electric clutch pulley.
• Pull belt off mower pulley and both idler pulleys.
BELT INSTALLATION -
• Place belt around mower pulley and both idler pulleys.
• Roll belt over electric clutch pulley.
• Make sure belt is in all pulley grooves and inside all belt
guides.
F!G. 29
TO ADJUST BRAKE (See Fig. 30)
Your tractor is equipped with an adjustable brake system
which is mounted on the right 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.
• Depressclutch/brake pedal and engage parking brake.
• Measure distance between brake operating arm and
nut “A” on brake rod.
• If distance is other than 1-1/2", disengage parking
brake, loosen jam nut and turn nut “A” until distance
becomes 1-1/2". Retighten jam nut against nut “A”.
• Engage parking brake and recheck distance.
• Road testtractorfor 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 au­
thorized service center.
FIG. 30
TO REPLACE MOWER BLADE DRIVE BELT
(See Fig. 31)
• Remove mower (See “TO REMOVE MOWER” in this
section of this manual).
• Remove mowerdrive belt (See “TO REPLACE MOWER
DRIVE BELT” in this section of this manual).
• Pull mower blade drive belt towards rear of mower at
tensioning pulley. Place a block between tensioning
pulley and mower lift bracket. Roll belt off tensioning
pulley.
• Roll belt off all other pulleys.
• Slide belt from under spring.
• To install belt, reverse above procedure. Make sure
21
FIG. 31