Service Transmission

Replacing Transmission Drive Belt

M86308

1. Remove the clutch to mower deck drive belt (A).

MX21238

2. Disconnect the electric PTO clutch connector (B).

MX21187

3. Loosen nut (C).

4. Move idler (D) to remove old drive belt. Install new transmission drive belt.

5. Move idler (D) as required to tighten new drive belt and tighten nut (C).

6. Check drive belt tension and adjust if necessary.

7. Connect the electric clutch connector (B).

8. Install the clutch to mower deck drive belt (A).

Adjusting Transmission Drive Belt Tension

Check drive belt deflection. Belt should deflect a little (A) with moderate thumb pressure.

If necessary, adjust tension:

· Loosen nut (B).

· Move idler (C) as required to loosen or tighten drive belt.

· Tighten nut (B).

· Check belt deflection again.

Adjusting Transmission Shift Lever

The transmission shift lever "N" neutral position is adjustable. Adjust shift lever as required.

NOTE: Vehicle should roll easily when the transmission is in neutral and brakes are released.

Adjust shift lever:

M86336

· Loosen lock nut (A).

· Loosen lock nut (B) just enough to move the shift lever (C).

· Align reverse lock rod (D) with "N" neutral on label and tighten lock nut (B).

· Tighten lock nut (A).

· Move shift lever through out all forward and reverse gears.

· The reverse lock rod (D) should align with numbers on label.

· Repeat adjustment procedure until everything is in alignment.

Adjusting Transmission Reverse Lock Rod

M86336

The reverse lock rod should be fully seated in the speed indicator plate (A) neutral "N" notch. Adjust reverse lock as required.

Adjust reverse lock:

· Loosen lock nut (B).

· Adjust reverse lock rod (C) location by tightening or loosening nut (D).

· Tighten lock nut (B).

Checking Gear Transmission

The gear transmission in this unit is a sealed component. No maintenance is required on this transmission. If you suspect any transmission problems, please contact your John Deere Dealer.