How to Jump the 12V Battery with a Second Vehicle

When the 12V battery in your MK-V is dead, you can jump the 12V after turning the Main Switch off.

Before you begin, gather the following:

• Safety gear as required by your job site
• Second vehicle with a good battery
• Jumper cables

   

To jump the 12V battery with a second vehicle:

1. Open the top cover and remove the tool tray to access the battery.
2. Turn off the main switch to cut power from the 12V to the MK-V. This step prevents electrical surges from damaging the tractor’s wiring and circuit boards.
3. Inspect the 12V battery for any leaks, cracks, or bulges. If you see any damage to the 12V do not jump the battery. Instead replace it.
4. Check the battery terminals for corrosion or loose connections. Clean or repair the terminals if necessary.
5. Connect the red (positive) clamp of the jumper cables to the positive terminal (+) of the 12V battery in the MK-V. If you’re using another vehicle to jump the tractor, connect the other red clamp to the positive terminal (+) of the vehicle’s battery.
6. Connect the black (negative) clamp of the jumper cables to the ground lug of the tractor’s 12V battery enclosure. If you’re using another vehicle to jump the tractor, connect the black (negative) clamp of the jumper cables to the negative (-) terminal of the vehicle’s battery.
7. Start the second vehicle and let it run for a few minutes.
8. Turn off the vehicle.
9. Disconnect the clamps in reverse order. Remove the black clamp from the ground lug in the MK-V, then the black clamp from the vehicle’s battery; then remove the red clamp from the vehicle’s battery followed by the red clamp from the 12V.
10. Next it's time to verify the 12V battery's charge. Connect the multimeter to the 12V in the MK-V. Connect the red probe to the positive (+) terminal of the 12V battery and then connect the negative (-) terminal of the 12V.
11. Read the multimeter. Note the following:

• You should see a reading above 10V; ideally between 11V and 13V.
• A declining voltage reading (going from 10V to 9V) suggests a draining battery. Monarch encourages battery replacement in this case as the MK-V requires a functional 12V to run.
• If a 12V battery reaches 0, the circuitry in the battery is like the issue. Replace the battery.

12. Remove the black (-) probe and then the red (+) probe.

13. Turn the main switch back to the ON position.

14. Power on the MK-V by pressing the Start button.

15. Enter your Operator Code when the screen displays.
16. Tap Motor to turn on the MK-V. The tractor is now ready for use.