Scag Power Equipment STT61V-29KB-DF Manual De Usuario

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Section 7
- NOTe -
DO  NOT  sharpen  the  blades  beyond  1/3  of  the 
width of the blade. See Figure 7-7.
Sharpen the cutting edge at the same bevel as the 
1. 
original. See Figure 7-7. Sharpen only the top of the 
cutting edge to maintain sharpness.
SGB033
Angle Blade Back
Do Not Cut In
X Must NOT Exceed
1/3 Blade Width
x
30
Blade Sharpening
Figure 7-7. 
Check the balance of the blade. If the blades are out 
2. 
of balance, vibration and premature wear can occur. 
See your authorized Scag dealer for blade balancing 
or special tools, if you choose to balance your own 
blades.
C. BLADE REPLACEMENT
 WARNING
Always wear proper hand and eye protection when 
working with cutter blades.
Remove the ignition key before replacing the blades.
1. 
Raise the mower deck to the highest position. Place 
2. 
the lanyard pin in the highest cutting height position 
to prevent the cutter deck from falling.
Secure the cutter blades to prevent them from 
3. 
rotating, (use the optional Blade Buddy tool P/N 
9212, to assist in securing the cutter blades), remove 
the nut from the blade attaching bolt. Remove the 
cutter blade, bolt and spacer from the spindle shaft. 
See Figure 7-8.
- NOTe -
The  front  of  the  machine  will  have  to  be  raised 
slightly  to  remove  the  blade  bolt  from  the  cutter 
spindle.
To install the new cutter blade, put the flat washer 
4. 
onto the blade bolt and slide the bolt into the hole in 
the cutter blade.
WASHER
HEX HEAD BOLT
CUTTER
BLADE
SPINDLE 
ASSEMBLY
CUTTER BLADE
SPACER
HEX HEAD
BOLT / NUT
CUTTER
DECK
SPINDLE
SHAFT
HEX NUT-TORQUE
TO 75 LB-FT
Blade Replacement
Figure 7-8. 
- NOTe -
Be sure that the blade is installed with the lift wing 
toward the top.
Install the spacer onto the blade bolt and insert the 
5. 
bolt into the cutter spindle shaft.
Install the hex nut to the blade bolt at the top of the 
6. 
cutter spindle. Secure the blades from rotating and 
torque to 75 lb-ft. See Figure 7-8.