How to Jump the 12V with a Portable Jump Starter

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

Before you begin, gather the following:

• Safety gear as required by your job site
• Portable jump starter, fully charged
• Multimeter

IMPORTANT: Refer to the directions for your portable jump starter for use instructions before jumping the MK-V. Make sure the jump starter is fully charged before use.

To jump the 12V battery with a portable jump starter:

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 jump starter to the positive terminal (+) of the 12V battery in the MK-V.
6. Connect the black (negative) clamp of the jump starter cables to the ground lug of the tractor’s 12V battery enclosure.  
   
   
   

   A. 12V battery	C. Positive (+) terminal
   B. Main switch in ON position	D. Ground lug used for negative (-) terminal

7. Jump the MK-V as described in your portable jump starter’s user manual.
8. Disconnect the black clamp from the ground lug.
9. Disconnect the red clamp from the positive terminal of the 12V.
10. Next, check the charge of the 12V by connecting a 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 (such as going from 10V to 9V) suggests a draining battery. Monarch enourages battery replacement in this case, as the MK-V requires a 12V to run.
• If the battery reaches 0V the circuitry in the battery is likely 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.