40
R
Section 7
- NOTE -
DO NOT sharpen the blades beyond 1/3 of the
width of the blade. See Figure 7-8.
1. Sharpen the cutting edge at the same bevel as the
original. See Figure 7-8. 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
Figure 7-8. Blade Sharpening
2. Check the balance of the blade. If the blades are out
of balance, vibration and premature wear can occur.
The cutter blades should be balanced to 1-1/2 oz-in.
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.
1. Remove the ignition key before replacing the blades.
2. Raise the mower deck to the highest position. Place
the lanyard pin in the highest cutting height position
to prevent the cutter deck from falling.
3. Secure the cutter blades to prevent them from
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 7-9.
- NOTE -
The front of the machine will have to be raised
slightly to remove the blade bolt from the cutter
spindle.
CAUTION
Inspect the cutter blade spacer(s) and washer
for wear and/or cupping. Replace the worn parts.
Worn spacer(s) and/or washer will not allow
proper tightening of the cutter blade and can lead
to cutter blade failure, personal injury or property
damage.
4. To install the new cutter blade, put the flat washer
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
Figure 7-9. Blade Replacement
- NOTE -
Be sure that the blade is installed with the lift wing
toward the top.
5. Install the spacer onto the blade bolt and insert the
bolt into the cutter spindle shaft.
6. Install the hex nut to the blade bolt at the top of the
cutter spindle. Secure the blades from rotating and
torque to 75 lb-ft. See Figure 7-9.
Summary of Contents for STTII-52V-26CH-EFI
Page 6: ...IV R Table of Contents...
Page 61: ...55 R Section 8 NOTES...
Page 87: ...81 R Section 8 NOTES...
Page 89: ...2016 Scag Power Equipment Division of Metalcraft of Mayville Inc...
