Scag Power Equipment Turf Tiger STT-28CAT - Manual (Page 40)

36
R
Section 7
B. BLADE SHARPENING
- Note -
If possible, use a file to sharpen the blade. Using
a wheel grinder may burn the blade.
- Note -
DO NOT sharpen the blades beyond 1/3 of the
width of the blade. See Figure 7-6.
Sharpen the cutting edge at the same bevel as the 1.
original. See Figure 7-6. 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 7-6.
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 positon
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.
(Figure 7-7)
- 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.
390S0160
CUTTER
DECk
HEx NUT-TORqUE
TO 75 LB-FT
SPINDLE
SHAFT
SPINDLE
ASSEMBLY
WASHER HEx HEAD BOLT
CUTTER
BLADE
HEx HEAD
BOLT / NUT
CUTTER BLADE
SPACER
Blade Replacement Figure 7-7.
- 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 ft/lbs. (See Figure 7-7)
TIRES 7.10
Check the tire pressures after every 8 hours of operation
or daily.
Caster Wheels Flat Free
Drive Wheels 12 PSI