Gravely ZT HD 48 Manual page 27

1. Parking Brake Cable
2. Adjuster
3. Nuts
Figure 18
PTO BELT
WARNING: MOVING PARTS can
cut or amputate body parts.
ALWAYS wait for moving parts to
stop before performing maintenance
or service.
CAUTION: DAMAGED OR WORN
BELTS may result in injury and/or
damage to unit. Check belts for
excessive wear or cracks often.
PTO Belt Access
1. Properly stop and park unit (See
Operation on page 14).
2. Lower the mower.
3. Place seat in most rearward position.
4. Remove belt covers.
5. Place foot board in open position
(Figure 19).
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2
3
1. Footboard in open position
2. Support Frame
3. Pivot
Replacing Mower Belts
NOTE: Long mower belt must be removed to
remove short mower belt.
1. Slowly release the tension on the long
2. Remove long mower belt from left blade
3. Slowly release the tension on the short
4. Remove short mower belt from right
5. Arrange new mower belt(s) on deck
NOTE: The PTO idler spring length range is
12.25 – 12.5" (31 – 31.8 cm) measured at a
3" (7.62 cm) cutting height. Adjust the idler
spring length as needed (Figure 21).
6. Replace belt covers and return foot
EN - 27
3
Figure 19
CAUTION: Use care when releasing
idler spring tension. Keep body parts
well away from idlers when
performing this operation.
mower belt idler until all the tension is
removed from the springs.
spindle and remove from deck.
belt idler until all the tension is removed
from the springs.
blade spindle and from deck. Idler pivot
bolt must be loosened slightly to gain
clearance to remove belt from under
idler pulley (Figure 20).
(short belt first). Retighten short mower
belt idler pivot bolt. Install belts on
sheaves. Put belts onto center sheave
last.
board to closed position.
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