Troy-Bilt R809K Benutzerhandbuch

23

Be sure to shut the engine off,

remove ignition key, disconnect the spark
plug wire(s) and ground against the engine to
prevent unintended starting before removing
the cutting blade(s) for sharpening or
replacement. Protect your hands by using
heavy gloves or a rag to grasp the cutting
blade.

Periodically inspect the blade

adapter and/or spindle for cracks or damage,
especially if you strike a foreign object.
Replace immediately if damaged

.

The blades may be removed as follows.

•

Remove the deck from beneath the tractor, (refer to 
Cutting Deck Removal on page 19) then gently flip the 
deck over to expose its underside.

•

Place a block of wood between the center deck 
housing baffle and the cutting blade to act as a 
stabilizer. See Figure 20.

•

Use a 15/16" wrench to remove the hex flange nut 
that secures the blade to the spindle assembly. See 
Figure 20.

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. See Figure 21.

If the cutting edge of the blade has already 

been sharpened to within 5/8" of the wind wing radius, 
or if any metal separation is present, replace the blades 
with new ones. See Figure 21.

It is important that each cutting blade edge be ground 
equally to maintain proper blade balance. A poorly 
balanced blade will cause excessive vibration and may 
cause damage to the tractor and result in personal 
injury. 

The blade can be tested by balancing it on a round 
shaft screwdriver. Grind metal from the heavy side until 
it balances evenly. 

When replacing the blade, be sure to install the blade 
with the side of the blade marked ‘‘Bottom’’ (or with a 
part number stamped in it) facing the ground when the 
mower is in the operating position. 

 Use a torque wrench to tighten the blade 

spindle hex flange nut to between 70 foot-pounds and 
90 foot-pounds. 

Before servicing, repairing, or

inspecting, always disengage PTO, move
shift lever into neutral position, set parking
brake, stop engine and remove key to prevent
unintended starting.

Two fuses are installed in your tractor’s wiring harness 
to protect the tractor’s electrical system from damage 
caused by excessive amperage. 

If the electrical system does not function, or your 
tractor’s engine will not crank, first check to be certain 
that the fuse has not blown. 

One can be found under the hood mounted behind the 
top of the dash panel on the support bar. The other can 
be found under the seat mounted to the inside of the 
tractor frame next to the battery tray. Pull the fuse out 
and inspect it to determine if it is good or blown.

 Always use a fuse with the same 

amperage capacity for replacement.