Scag Power Equipment STHM - Manual (Page 12)

10
Adjust the tension by tightening or loosening
the nut on the J-bolt.
4. Replace the belt covers.
BELT ALIGNMENT
Belt alignment is important for proper performance of
your Scag mower. If you experience frequent belt wear
or breakage, see your authorized Scag Service Dealer
for belt adjustment.
CUTTER DECK ADJUSTMENTS
Due to the many conditions that exist, it is difficult to
suggest a setting that will work for every lawn. There
are, however, two adjustments that should be made on
the cutter deck: pitch and height.
PITCH is the angle of the blades (comparing front
to rear).
HEIGHT is the nominal distance that the blade is
off the ground. This measurement is made with the
blades pointed side to side and distance is measured
between cutting tip and ground.
Adjusting the blade height can be done by moving any
number of the five smaller spacers on the blade mount-
ing bolts to the top or to the bottom of the spindle shaft.
All blades should be positioned equally (See Figure 10).
The unit is shipped with one spacer on top of spindle
and four underneath (See Figure 10).
This adjustment does not affect blade pitch.
-NOTE-
For best results, keep the cutter deck
high in relation to the engine deck and
the blades low in the cutter deck; ie. 4 or
5 spacers below the spindle shaft.
Additional range to the cutting height can be
achieved by repositioning the cutter deck in relation-
ship to the engine deck. This adjustment also affects
the pitch of the deck.
Figure 9. Blade Belt Tension Adjustment
SGB031
Deck
"J" Bolt
Nut
Washer
Belt
Hex Nut-Torque
to 75 Lb-Ft
Cutter Blade
Spacer 1/4"
Spindle
Shaft
Cutter
Deck
Spindle
Assembly
Hex Head
Bolt / Nut
Cutter Blade
Spacers1/4"
Washer
Hex Head Bolt
Cutter Blade
Figure 10. Cutter Blade Adjustment