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Maintenance
Figure 35
1. Sharpen at original angle
2. Check the balance of the blade by putting it on a
blade balancer (
Figure 36). If the blade stays in a
horizontal position, the blade is balanced and can
be used. If the blade is not balanced, le some
metal off the end of the sail area only (Figure 36).
Repeat this procedure until the blade is balanced.
Figure 36
1. Blade 2. Balancer
Installing the Blades
1. Install the blade onto the spindle shaft (Figure 34).
Important: The curved part of the blade
must be pointing upward toward the inside of
the mower to ensure proper cutting.
2. Hold the blade end using a rag or thickly-padded
glove (or place a wrench on the top sheave nut).
Apply lubricant to the threads of the blade bolt
as needed to prevent seizing. Copper based
anti-seize is preferable. Grease is an acceptable
substitute. Install the washer and blade bolt and
washer assembly.
3. Torque the blade bolt to 32-42 ft-lb (43-57 N-m).
WARNING
Incorrect installation of the blade or
components used to retain the blade cause
the blade to come loose and could seriously
injure or kill you or bystanders.
Always install the original Exmark blades,
washers and blade bolts as shown.
Mower Belt Maintenance
Inspecting the Belts
Service Interval: Every 25 hours/Monthly
(whichever comes rst)
Check the belts for cracks, frayed edges, burn marks,
or any other damage. Replace damaged belts.
Replacing the Mower Belt
Squealing when the belt is rotating, blades slipping
when cutting grass, frayed belt edges, burn marks,
and cracks are signs of a worn mower belt. Replace
the mower belt if any of these conditions are evident.
1. Park the machine on a level surface and disengage
the blade control switch.
2. Move the motion control levers outward to the
neutral position, engage parking brake, stop the
engine, remove the key, and wait for all moving
parts to stop before leaving the operating position.
3. Set the height-of-cut at 1-1/2 inch (38 mm).
4. For 48 and 52 inch decks only, remove the belt
covers over the outside spindles.
5. Grasp both belt strands going to the clutch. Pull
them to the rear of the machine and slip the belt
off the clutch pulley as shown in
Figure 37 and
Figure 38.
WARNING
The spring is under tension when installed
and can cause personal injury.
Be careful when removing the belt.
42