Belt Removal & Replacement - Ferris IS5100Z Series Operator's Manual

BELT REMOVAL & REPLACEMENT
To avoid damaging belts, DO NOT
PRY BELTS OVER PULLEYS.
Mower Drive Belt Removal &
Replacement
1. Park the tractor on a smooth, level surface such
as a concrete floor. Disengage the PTO, engage
the parking brake, turn off the engine, and remove
the ignition key.
2. Remove the height adjustment pin (A, Figure 46)
and lower deck.
3. Loosen the 5/16" bolts securing the mower deck
guards and remove the guards.
4. 61" Side Discharge: Using a 3/4" combination
wrench rotate the spring-loaded idler pulley (A,
Figure 47) COUNTER-CLOCKWISE to release
the belt tension.
4a. 61" Rear Discharge & All 72" Decks: Using a
3/4" combination wrench, rotate the spring-loaded
idler pulley (A, Figure 47) CLOCKWISE to release
the belt tension.
WARNING
Use extreme caution when rotating the idler
pulley with the wrench, due to the increased
tension in the spring as the idler pulley is being
rotated. Injury may result if the wrench is
prematurely released while the spring is under
tension.
5. Slide the drive belt over the edge of the stationary
idler pulley (C) and carefully release the
tension on the wrench until the spring tension is
completely released.
6. Remove the old belt and replace with a new one.
7. Install the drive belt on the gearbox pulley, the
spindle pulleys and idler pulleys.
8. 61" Side Discharge Models: Rotate the spring-
loaded idler pulley (A, Figure 47) COUNTER-
CLOCKWISE and slide the drive belt over the
edge of the stationary idler pulley (C). Make sure
the V-side of the belt runs in the pulley grooves
(Figure 48). Carefull release the tension on the
wrench.
8. 61" Rear Discharge & All 72" Decks: Rotate
the spring-loaded idler pulley (A, Figure 47)
CLOCKWISE and slide the drive belt over the
edge of the stationary idler pulley (C). Make sure
the V-side of the belt runs in the pulley grooves
(Figure 48). Carefully release the tension on the
wrench.
Troubleshooting, Adjustment & Repair
9. Reinstall the mower deck guards and tighten the
5/16" hardware to secure in place.
10. Run the mower under no-load condition for
approximately 5 minutes to break in the belt.
Figure 46. Lower the Mower Deck
A. Height Adjustment Pin
61" Side Discharge Model Only
61" Rear Discharge & 72" Model Decks
A
C
Figure 47. Mower PTO Belt
A. Spring-loaded Idler Pulley
B. Idler Spring
C. Stationary Idler Pulley
A
A
C
B
B
47