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Figure 62
40 inch, 48 inch, and 52 inch Mower Deck shown
1. Outside pulley
2. PTO Drive Belt
3. Idler arm spring
Figure 63
36 inch Mower Deck shown
1. Mower deck belt
2. PTO Drive Belt
3. Drive belt pulley
4. Mower deck belt
5. Belt guide
6. Center spindle pulley
4. Idler arm spring
5. Drive belt pulley
Replacing the PTO Drive Belt
Service Interval: Every 50 hours—Check the PTO
drive belt.
Squealing when the belt is rotating, blades slipping when
cutting grass, frayed belt edges, burn marks and cracks
are signs of a worn drive belt. Replace the drive belt if
any of these conditions are evident.
1. Disengage the PTO and set the parking brake.
2. Stop the engine, remove the key, and wait for all
moving parts to stop before leaving the operating
position.
3. Unlatch and remove the carrier frame cover.
4. Unlatch and remove the belt covers.
5. Remove the heat shield from the engine deck and
carrier frame.
6. Roll the belt off of the center pulley on the mower
deck (Figure 64). Refer to Figure 65 to roll the belt
off left pulley for a 36 inch mower deck. Use caution
when removing the belt as tension will increase
because of the spring loaded idler pulley.
7. Remove the belt from the engine pulley and the
spring loaded idler pulley (Figure 64). Refer to
Figure 65 to remove the belt from the 36 inch mower
deck pulleys.
8. Install the new belt onto the engine pulley and spring
loaded idler pulley (Figure 64).
9. Roll the belt onto the center pulley on the mower
deck (Figure 64). Use caution when install the belt
as tension will increase because of the spring loaded
idler pulley. Refer to Figure 65 to roll the new belt
onto the left pulley for a 36 inch mower deck.
10. Install the heat shield to the engine deck and carrier
frame.
11. Adjust the belt guide an 1/8 inch (3 mm) from the
belt for 40, 48 and 52 inch mower decks (Figure 64).
12. Install the belt covers onto the cutting unit and
secure the latches.
13. Install the carrier frame cover onto the carrier frame
and secure the latches.
46
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