Scag Power Equipment MAG - Manual (Page 24)

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3. After proper tension is obtained, tighten the two bolts
and install the pump belt guard.
6.6 PUMP DRIVE BELT ADJUSTMENT
To adjust belt tension, turn the adjusting nut (Figure 6-1)
until 1/2 inch deflection in belt is obtained with 10 pounds
of pressure. See Engine Drive Belts, section 7.9 for checking
method.
6.7 ELECTRIC CLUTCH DRIVE BELT
ADJUSTMENT
To adjust the belt tension, turn the adjusting nut (Figure 6-
4) to obtain 1/2 inch belt deflection with 10 pounds of
pressure. See Engine Drive Belts, section 7.9 for checking
method.
Figure 6-5 Alternator Belt Adjustment
6.9 CUTTER DRIVE BELT ADJUSTMENTS
1. Remove the top cutter deck cover.
2. Each belt has an adjustment rod attached to its belt
idler arm. To adjust the belt tension, turn the adjusting
nut (Figure 6-6) until 1/2 inch deflection in the belt is
obtained with 10 pounds of pressure. See Cutter Deck
Belts, section 7-10 for checking method.
Figure 6-6 Blade Belt Tension Adjustments
(Mag-72 Deck Shown)
3. Replace the top cutter deck cover.
Figure 6-4 Electric Clutch Drive Belt Adjustment
6.8 ALTERNATOR BELT ADJUSTMENT
To adjust the alternator belt tension, loosen the two bolts
holding the alternator (Figure 6-5). Move the alternator
until proper tension of 0.28 to 0.35 inch deflection with 22
pounds of pressure is obtained, then tighten the two bolts.
See Engine Drive Belts, section 7.9 for checking method.
Adjusting Bolt
Adjusting Bolt
Location
Tension Adjusting Nuts
Section 6