Cutter Blades - Scag Power Equipment STR Operator's Manual

Section 7

7.9 CUTTER BLADES

A. Blade Inspection
1. Remove the ignition key before servicing the blades.
2. Tilt the mower deck and secure in place with the two
prop rods.
WARNING:
Never operate the cutter blades with the deck
in the raised position because it is hazardous.
Tension
Idler Pulley
Check
Tension
Here
Engine Pulley
Electric Clutch
Pulley
Check
Tension
Here
Blower Pulley
ENGINE DRIVE BELT
(481235)
Idler Pulley
Gearbox Pulley
BLOWER DRIVE BELT
(481234)
Figure 7-8 Belt Tensioning
3. Check the blades for straightness by marking the tip
position of the blade on the inside of the deck. Then
rotate the opposite tip of the blade to the same
position. Compare the difference in the blade tip
track. If the track is more than 1/8 inch, the blade is
bent and should be replaced.
WARNING:
Do not attempt to straighten a bent blade, and
never weld a broken or cracked blade. Always
replace it with a new blade to assure safety.
4. If a blade cutting edge is dull or nicked, it should be
sharpened. Remove the blades for sharpening. See
"Blade Replacement."
Gearbox Pulley
Check
Tension
Here
TRANSMISSION DRIVE BELT
Tension
Idler Pulley
Cutter Deck
Spindle Pulley
37
Pump Pulley
(481237 LH)
(481236 RH)