Check The Mower Belt Idler Tensioning Spring Length (72" Models Only); Adjust The Mower Belt Idler Tensioning Spring Length (72" Models Only) - Briggs & Stratton Snapper Pro S800X Series Operator's Manual

Maintenance
Figures 48). Carefully rotate the breaker bar COUNTER-
NOTICE
To avoid damaging belts, do NOT pry belts over pulleys.
CLOCKWISE, which will relieve the tension on the belt
exerted from the idler arm.
4. Slide the drive belt over the edge of the right side
stationary idler pulley (B). Carefully release the tension
on the breaker bar.
5. Remove the old belt and replace with a new one. Make
sure the V-side of the belt runs in the pulley grooves.
6. Install the drive belt on the gear box pulley, the spindle
pulleys and all idler pulleys except the stationary
pulley (B). Carefully rotate the breaker bar COUNTER-
CLOCKWISE and install the belt on the stationary idler
pulley (B). Carefully release the tension on the breaker
bar.
7. Reinstall the mower deck guards.
8. Run the mower under no-load condition for about 5
minutes to break-in the new belt.
Check the Mower Belt Idler Tensioning Spring
Length (72" Models Only)
1. Remove the mower deck guards.
2. Set the mower deck to the 3-1/2" (8.9 cm) cutting
height.
3. Measure the coil length (A, Figure 49) of the mower belt
idler tensioning spring (B). The measurement should
equal 7-1/4" ± 1/8" (18.42 cm ± .32 cm). If not, perform
the Adjust the Mower Belt Idler Tensioning Spring
Length.
Adjust the Mower Belt Idler Tensioning Spring
Length (72" Models Only)
1. Loosen the jam nut (C, Figure 49) on the eye bolt (D).
2. Turn the adjustment nut (E) until the measurement
equals 7-1/4" ± 1/8" (18.42 cm ± .32 cm).
3. Re-tighten the jam nut.
4. Re-install the mower deck guards.
5. Run the mower under no-load condition for about five
(5) minutes to break in the new belt.
42
A
D
E
Figure 49. Mower Belt Idler Tensioning Spring (72" Models)
A. Coil Length
B. Idler Tensioning Spring
C. Jam Nut
D. Eye Bolt
E. Adjustment Nut
B
C
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