Not for
Reproduction
9
800X Series Zero-Turn Rider - 61” & 72” Mower Deck
Check Deck Drive Belt
1. Make sure the V-side of the belt runs in the pulley
grooves (
Figure 15
).
2. If belt is not properly seated remove the mower deck
guards.
3. Use a 1/2” breaker bar, and place the square end in
the square hole located in the end of the idler arm (
A,
Figures 15
). Carefully rotate the breaker bar
counter-
clockwise
, which will relieve the tension on the belt
exerted from the idler arm and spring.
4. Re-seat belt and carefully release the tension on the
breaker bar.
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 16) 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 16) 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.
WARNING
Spring loaded components can kick back
causing injuries.
Use extreme caution when rotating the idler arm with the
breaker bar, due to the increased tension in the spring
as the idler arm is being rotated. Injury may result if the
breaker bar is prematurely released while the spring is
under tension.
NOTICE
To avoid damaging belts, do NOT pry belts over pulleys.
Figure 15. Mower PTO Belt
A. Idler Arm
B. Stationary Idler Pulley
C. Deck Drive Belt
D. Spindle Pulley
E. Gearbox
Pulley
D
E
A
D
C
B
D
B
A
E
C
B
D
Figure 16. Mower Belt Idler Tensioning Spring (72” Models)
A. Coil Length
B. Idler Tensioning Spring
C. Jam Nut
D. Eye Bolt
E. Adjustment
Nut
