YT Tractor Backhoe Removal and Install

The backhoe is one of the most iconic and powerful attachments available for your compact tractor. Here, we discuss how to remove and reinstall a frame mounted, four-point, B-75 or B-90 backhoe from your YT tractor. We’ll also cover everything you need to know about safety, controls, removal, proper storage and re-installation.

Safety First

Before you begin, be sure to read and understand all operating and safety instructions in the operator’s manual, as well as those posted on the machine. Wear eye and hearing protection and proper footwear. Do not wear loose fitting clothing or anything that could become caught in the machine during operation.

Instructions for Removing Your YT Backhoe

Your tractor is designed with versatility in mind. When it’s time to swap out your backhoe for another attachment, it’s easy to remove.

First, park your tractor on stable, level ground and put the wheel chocks in place. This will help with both removal and reinstallation.
Once positioned, remove the swing lock pin and transport bar to allow the boom and arm to move (WARNING: use EXTREME caution when moving the hydraulic controls. NEVER place yourself between moving components).
Start the tractor and center the backhoe boom in line with the tractor.
Lower the stabilizers enough to take the weight off the subframe pins.
Lower the backhoe boom and arm to form a ninety degree angle.
Rest the bucket on the ground (remember that having the bucket flat on the ground will assist in both removal and reinstallation).
Remove the backhoe seat to give you easy access to the hydraulic connections and pins.
Next, remove the click pin assembly, also known as a linchpin assembly. You can relieve pressure from the pins by slowly moving the boom, arm or stabilizers. You’ll know when the pressure has been removed when the pins move freely by hand.
Now remove the subframe pins. To do this, use the stabilizers to slowly lift the backhoe out of the frame hooks. Then, move the tractor slightly forward to clear the backhoe brackets. Pay close attention to the hydraulic lines. Pulling forward too far may permanently damage lines or cause the lines to break.
Place blocks under the backhoe mainframe (blocks should be six inches). Use the stabilizers to lower the backhoe onto the blocks, making sure not to leave any hydraulic pressure on the cylinders. The boom and arm should remain at a ninety degree angle.
Lower the engine speed to idle and turn off the tractor.
Disconnect the hydraulic pressure and return hoses. Connect the tractor pressure and return lines to complete the hydraulic circuits (WARNING: failure to join the tractor pressure and return line scold cause damage to the hydraulic system)
Then, join the backhoe pressure and return lines to protect the hose couplings. This will prevent dirt, moisture and other foreign matter from entering the hydraulic system.
Once the backhoe is successfully removed, ensure you have a “slow moving vehicle” sign on the rear of your tractor. If yours is mounted on the backhoe, remember to mount it back on the tractor.

Bonus tip: Be sure to store all your parts in a secure location for later use!

Instructions for Installing Your YT Backhoe

When you’re ready to use your backhoe again, it’s easy to reinstall.

With the tractor running, back the tractor into position. Lower engine speed to idle and turn it off.
Disconnect the pressure and return lines of both the tractor and the backhoe.
Then, connect the pressure and return lines from the tractor to the backhoe.
Start the tractor.
Using the backhoe boom, bucket and stabilizers, lift the backhoe to above the bottom hooks.
Back the tractor up to position the backhoe to sit in the lower hooks of the subframe. Be mindful not to put excessive tension on the hydraulic lines when moving the machine.
Now, using the backhoe stabilizers and boom, slowly lower the backhoe into the lower hooks.
Use the backhoe controls to slowly adjust position to align the upper holes in the backhoe frame with those in the subframe.
Once they are aligned, insert and clip the subframe mourning pins. If correctly aligned, they should install easily by hand.
If not already mounted, install the “slow moving vehicle” sign on the backhoe.
Reinstall the seat, seat pin and locking pin at the desired height.
Finally, if you will be traveling, remember to reinstall the click pin assembly, swing lock, and transport lock. Be sure to remove the blocks from under the backhoe and properly store them.

For more detail, consult your operation manual or speak with a local Yanmar dealer.

Happy digging!

Connect With Yanmar

At Yanmar, we’re here to help you get the most out of your tractor and attachments. Get tips on how to fuel your lifestyle with maintenance walkthroughs and easy-to-use resources. Have a tricky issue or specific project you want to discuss? Contact our Customer Experience Team at 678-551-7369.

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