Troubleshooting, Adjustment, & Service
| D |
C | B |
| A |
Figure 46. Mulching Deck (Belt Covers Removed)
A.Idler Assembly Capscrew
B.Spring-Loaded Idler Assembly
C.Belt
D.Square Hole
40” Mower 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 (A, Figure 46).
4.Using a ratchet (A, Figure 47), insert the end of the extension into the square hole (D, Figure 46) and move the idler assembly (B, Figure 46) to relieve tension on the belt (C).
5.Remove the belt (C).
6.Install a new belt (C) on the pulleys as shown. Releasing the idler assembly (A) allows the spring to automatically tension the cogged belt.
7.Tighten the idler assembly capscrew (A). Reinstall the belt covers.
8.Check that the blades are positioned perpendicular to each other (see Figure 48). If not, perform the mower blade timing procedure found in the Regular Maintenance section.
A |
Figure 47. Release Cogged Belt Tension A. 3/8” Ratchet and Extension
Figure 48. Mower Blade Timing
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