John Deere 521933.12 – GPM: INFORMATION FOR OPERATOR: Gear 4 Jumped Out

Generated when the control software detects that Gear 4 has disengaged unexpectedly during operation, indicating a mechanical or electrical interruption in holding the gear.

• 6110R
• 6120R
• 6130R
• 6145R
• 6155R
• 6175R
• 6195R
• 6215R
• 6R 145
• 6R 155
• 6R 175
• 6R 195
• 6R 215
• 6140R
• 6150R
• 6170R
• 6190R
• 6210R

1. 1

   Operator Re-engagement: Attempt to re-engage Gear 4 and monitor for recurrence.

2. 2

   Inspect Transmission Mechanics: Conduct a thorough inspection of the transmission system to identify any mechanical wear, damage, or misalignment that might cause Gear 4 to slip or jump out.

3. 3

   Check Solenoid Function: Verify that the Gear 4 solenoid is functioning correctly, receiving proper voltage, and responding promptly without sticking.

4. 4

   Software Check: Verify that the GPM control software is up-to-date.

1. 1

   Clear and Retest

   Clear the code and operate the tractor to see if Gear 4 jumps out again.

2. 2

   Software Update

   If the code returns but no mechanical binding is felt, install any available GPM software updates via the John Deere Service ADVISOR tool to address potential bugs.

3. 3

   Solenoid Replacement

   If the software is current and the wiring harness to the transmission is intact (no shorts/opens), replace the Gear 4 shift solenoid.

4. 4

   Mechanical Repair

   If replacing the solenoid does not resolve the issue, the transmission will require a mechanical teardown to inspect the Gear 4 clutch packs, synchronizers, or shift forks for physical damage.

5. 5

   Monitor Performance

   After making necessary adjustments or replacing parts, test drive the tractor under load to monitor the performance of Gear 4 engagement and ensure the issue is resolved.