13
MOWER DRIVE BELT REMOVAL
Removal (Figure 11)
NOTE:
The PTO belt must be removed from blade spindle
pulleys prior to removing mower drive belt. The PTO belt
does not need to be removed from the electric clutch.
1. Remove PTO belt from blade spindle pulleys (see PTO
2. Remove mower drive belt from right blade spindle pulley
and then from center blade spindle pulley.
3. Loosen drive belt idler pivot bolt just enough to gain
clearance to remove mower drive belt from under drive
belt idler.
4. Remove mower drive belt from unit.
Installation (Figure 11)
1. Install the new mower drive belt on center blade spindle
pulley, right blade spindle pulley, and drive belt idler.
2. Tighten drive belt idler pivot bolt.
3. Install PTO belt on blade spindle pulleys (see PTO
MOWER BLADES
NOTE:
If mower is used under sandy soil conditions, replace
blades when air lifts become eroded through at ends
(figure 13).
Remove
1. Turn the engine off. Remove the ignition key. Remove
the ignition wire from the spark plugs.
2. Remove the bolts, lock washer, flat washers, and
blades from the spindle shafts.
Replace
1. Put the blades, flat washers, lock washers, and the
bolts back on the spindle shafts.
2. Tighten the bolts to a torque of 115-160 lbf-ft
(156-217 N•m).
3. Replace ignition wire on spark plugs.
Sharpen the Mower Blades
1. Remove mower blade from unit.
Discard mower blade if:
• More than 1/2 in. (1.27 cm) of metal is removed.
• Air lifts become eroded.
• Blade is bent or broken.
OF3229
Figure 12
The PTO idler spring length range should be
13 – 13.25 in. (33 – 33.6 cm). Measure the spring length
with the deck set at 2 in. height for mowing at a 1 – 3 in.
cutting height. Measure the spring length with the deck
set at 4 in. height for mowing at a 3 – 5 in. cutting height.
Adjust as necessary.
Measure PTO idler
spring length here.
PTO Idler Spring Length
CAUTION:
Use sturdy gloves or padding to
protect hands when working with mower blades.
CAUTION:
DO NOT sharpen mower blades
while on unit. An unbalanced mower blade will
cause excessive vibration and eventual damage
to unit. Check mower blade balance before
reinstalling blades.
NEVER weld or straighten bent blades.
1. Cutting Edge
2. Air Lift Erosion
1
2
OT0792
Figure 13
DO NOT sharpen to this pattern
Sharpen to this pattern
DISCARD if more
than 1/2 in. (1.27 cm)