Blade Care - Craftsman PRO Serie Manual Del Operador

6. Remain in the operator's position with the cutting deck engaged for a
minimum of two minutes, allowing the underside of the cutting deck to
thoroughly rinse.
7. Release the blade control to disengage the cutting deck and stop the blades.
8. Push and hold the ON/OFF switch until the mower engine stops.
9. Turn the water off and detach the deck wash nozzle from the water port on
your deck's surface.
After cleaning your deck, restart the mower. Keep the engine and blade running
for a minimum of two minutes, allowing the underside of the cutting deck to
thoroughly dry.

Blade Care

When removing the cutting blade for sharpening or replacement, protect
your hands with a pair of heavy gloves or use a heavy rag to hold the blade.
Periodically inspect the blade and/or spindle for cracks, especially if you strike a
foreign object. Replace when necessary. Follow the steps below for blade service.
1. Allow the engine to run until it is out of fuel. Do not attempt to pour fuel
from the engine. Disconnect spark plug wire. Refer to Engine Operator's
Manual.
2. Turn mower on its side making sure that the air filter and the carburetor are
facing up.
3. Place a block of wood between the center deck housing baffle and the
cutting blade to prevent the blade from turning when loosening the blade's
hex flange nut. See Figure 14.
4. Remove the hex flange nuts that secures the blades to the spindle assembly.
See Figure 15.
Note: The hex flange nuts are secured using a standard thread pattern. Turn
counter-clockwise to loosen.
5. Remove the blades from the mowing deck.
6. Replace or sharpen the blades. To properly sharpen the cutting blades,
remove equal amounts of metal from both ends of the blades along the
cutting edges, parallel to the trailing edge, at a 25° to 30° angle. Always
grind each cutting blade edge equally to maintain proper blade balance.
7. Test the blades for balance by balancing the blade on a round shaft
screwdriver to check. If out of balance, when sharpening, remove metal from
the heavy side until it balances evenly. During sharpening the blade, follow
the original angle of grind. Grind each cutting edge equally to keep the blade
balanced.
An unbalanced blade will cause excessive vibration when rotating at high
speeds. It may cause damage to mower and could break causing personal
injury.
8. Slide the blades onto the spindle shafts with the side marked "Grass Side"
(or with part number) facing the ground when the mower is in the operating
position.
9. Replace hex bolt and tighten hex bolt to torque:
70 ft-lb (min.), 90 ft-lb (max.).
To ensure safe operation of your mower, periodically check the blade bolt for correct
torque.
SERVICE AND MAINTENANCE
WARNING
WARNING
Belt Care
NOTE: Several components must be removed in order to change the mower's
self-propulsion drive belt. See an authorized Sears Service Center to have your belt
replaced.
16
Figure 14
Figure 15