Troubleshooting, Adjustment, & Service
PTO BELT REPLACEMENT
1.With the mower deck installed, park the tractor on a smooth, level surface such as a concrete floor. Disengage the PTO, engage the parking brake, shut the engine off, and remove the key.
2.Remove the mower deck (see “Mower deck removal”). Remove the belt covers.
3.Note the position of the idler pulley belt guide (E, Figure 38). Loosen the idler pulley capscrew and remove the belt from the pulley (D).
4.Install the new belt (B) as shown. When the mower deck is installed on the tractor, the belt wraps around the PTO clutch pulley (A), idler pulley (D) and mower deck drive pulley (C).
5.Return the idler pulley belt guide (E) to its original position and tighten the idler pulley capscrew.
ARBOR DRIVE BELT REPLACEMENT
1.With the mower deck installed, park the tractor on a smooth, level surface such as a concrete floor. Disengage the PTO, engage the parking brake, shut the engine off, and remove the key.
2.Remove the mower deck (see “Mower Deck Removal”). Remove the belt covers.
3.Loosen the idler assembly capscrew (G, Figure 38).
4.Using a ratchet (A, Figure 39), move the idler assem- bly (H) to relieve tension on the belt (F).
5.Remove the belt (F).
6.Install a new belt (F) on the pulleys as shown. Releasing the idler assembly (H) allows the spring to automatically tension the cogged belt.
7.Tighten the idler assembly capscrew (G). Reinstall the belt covers.
8.Check that the blades are positioned perpendicular to each other as shown in Figure 40. If not, perform the mower blade timing procedure found in the “Regular Maintenance” section.
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| A |
| B | H |
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| |
C |
| G |
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| |
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| F |
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| D |
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| E |
Figure 38. Mower Belts
A.PTO Pulley (Engine)
B.PTO Belt
C.Mower Deck Drive Pulley
D.Idler Pulley
E.Belt Guide
F.Arbor Drive Belt
G.Idler Capscrew
H.Idler Assembly Bracket
A |
Figure 39. Release Belt Tension
A. 3/8” Ratchet and Extension
Figure 40. Mower Blade Alignment
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