51
4. Slide the drive belt over the edge of the rear stationary idler
pulley (B, Figures 50 & 51). Carefully release the tension
on the breaker bar.
5. Remove the old belt and replace with a new one. Make sure
that the V-side of the belt runs in the pulley grooves.
6. Install the drive belt (A, Figures 52 & 53) on the PTO pulley,
the spindle pulleys (B), the front stationary idler pulley(s)
(C), and the adjustable idler pulley (D), except the rear
stationary pulley (D).
52
53
• For 52" Models: Carefully rotate the breaker bar
counter-clockwise and install the belt on the rear
stationary idler pulley.
• For 61" Models: Carefully rotate the breaker bar
clockwise and install the belt on the rear stationary
idler pulley.
7. Carefully release the tension on the breaker bar.
8. Reinstall the mower deck guards.
9. Run the mower under no-load condition for about 5 minutes
to break-in the new belt.
Check the Mower Belt Idler Tensioner Spring
Length
1. Set the mower deck to the 3-1/2" (8.9 cm) cutting position.
2. Use the
Mower Belt Idler Tensioner Spring Length
chart to
determine the correct spring length for your unit.
Mower Belt Idler Tensioner Spring Length
MeasurementDeck Size
11-9/16" (29.4 cm)52" Mower Deck
6-3/4" (17.12 cm)61" Mower Deck
3. Measure the coil length (A, Figure 54) of the mower belt
idler tensioner spring (B). The measurement should equal
the measurement as indicated in the chart. If the
measurement does not equal the measurement as indicated
in the chart, perform the
Adjusting the Mower Belt Idler
Tensioner Spring Length
procedure.
34 ferrisindustries.com
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