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How to build and install the Backhoe Pivot

Written By: Robert Kirk (and 3 other contributors)
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Difficulty

Moderate

Steps

39

Time Required

12:00:00

Sections

1

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1

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In Progress

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Introduction

  1. Take two 12-hole steel tubes. These will be used to mount the Quick Attach.

    • Take two 12-hole steel tubes. These will be used to mount the Quick Attach.

    • Mount two 3x1 hole plates on both ends of one 12-hole tube with 7" bolts and nuts. This will be the bottom of the Quick Attach plate.

    • Mount two 2x3 hole plates to the ends of the other 12-hole tube using 7" bolts and nuts. Use only the 2 inner holes, as the third hole will be used to mount the Stabilizer Legs.

  2. Build the Angled Support (pictured in step 3) from a 24" piece of 1/2"x4" plate. Punch 2 holes, 2" in from each end and at 20" spacing using a 1-1/16 bit in an open source Ironworker Machine.

    • Build the Angled Support (pictured in step 3) from a 24" piece of 1/2"x4" plate. Punch 2 holes, 2" in from each end and at 20" spacing using a 1-1/16 bit in an open source Ironworker Machine.

    • These support pieces prevent side-to-side movement of the Quick Attach tubes.

  3. Install the 2 Angled Supports using 7 inch bolts, one on each side. (as pictured)

    • Install the 2 Angled Supports using 7 inch bolts, one on each side. (as pictured)

    • Note: there's a mistake in this picture! The 2 2-hole by 4-hole plates on the top tube should hang down instead of up.

  4. Mount two 4x1 hole plates to end of 12-hole tube to create vertical support for Stabilizer Legs. (RobK note - check length) Attach using 7" bolts with two holes extended beyond the end of the 12-hole tube.

    • Mount two 4x1 hole plates to end of 12-hole tube to create vertical support for Stabilizer Legs. (RobK note - check length)

    • Attach using 7" bolts with two holes extended beyond the end of the 12-hole tube.

    • Mount these vertical supports to Quick Attach tube. Stabilizer Legs will attach to these. (note: photo inaccurate - angled support should already be in place).

    • Note: there's a mistake in this picture! The 2 2-hole by 4-hole plates on the bottom tube hangs off the wrong way. It should hang towards the other horizontal tube.

  5. Install the Leg Pivot Plate (4x1 hole plate at bottom of image), only on the upper hole with 7 inch bolt.

    • Install the Leg Pivot Plate (4x1 hole plate at bottom of image), only on the upper hole with 7 inch bolt.

  6. Mount 2x1 hole plate at the top of each vertical leg stabilizer tube using a bolt to attach to the tube and a pin to the right of that, which the cylinder will rotate on. Next attach a 2x2 hole plate to the 4th and 5th holes of the stabilizer legs.

    • Mount 2x1 hole plate at the top of each vertical leg stabilizer tube using a bolt to attach to the tube and a pin to the right of that, which the cylinder will rotate on.

    • Next attach a 2x2 hole plate to the 4th and 5th holes of the stabilizer legs.

    • Mount the Leg Cylinders to the plates at top and bottom using four 11" bolts.

  7. Weld feet to feet pivot plates (we used a stack of spacers to get the feet in the right position before tacking and welding).

    • Weld feet to feet pivot plates (we used a stack of spacers to get the feet in the right position before tacking and welding).

    • Next weld a few pieces of something (we used small sections of rebar) to the bottom of the feet for added traction. We used a Z orientation with the hope that this would provide stability in several directions.

  8. Attach two 2x4 hole Reinforcement Plates to the top and bottom Quick Attach tubes

    • Attach two 2x4 hole Reinforcement Plates to the top and bottom Quick Attach tubes

  9. Attach Main Pivot Tubes to Quick Attach tubes. Leave a space of 4" between them. Use ~10" bolts to attach Reinforcement plates to the Main Pivot Tubes (through Quick Attach tubes) Insert bolts through the tube (bolts should not pass through the 4" space between the Main Pivot Tubes because the pivot cylinders will move through this space). Insert bolts through the tube (bolts should not pass through the 4" space between the Main Pivot Tubes because the pivot cylinders will move through this space).

    • Attach Main Pivot Tubes to Quick Attach tubes. Leave a space of 4" between them. Use ~10" bolts to attach Reinforcement plates to the Main Pivot Tubes (through Quick Attach tubes)

    • Insert bolts through the tube (bolts should not pass through the 4" space between the Main Pivot Tubes because the pivot cylinders will move through this space).

  10. Attach 4 pivot plates and five 1x2 hole plates as spacers between Reinforcement plate and pivot tubes. Use ~6" bolts

    • Attach 4 pivot plates and five 1x2 hole plates as spacers between Reinforcement plate and pivot tubes. Use ~6" bolts

    • Nuts will be mounted to the inside of pivot tubes. Hold the nut inside the tube (with a vice if necessary) while screwing in the bolts. Tighten with impact driver

  11. Hold nut inside tube to do this.

    • Hold nut inside tube to do this.

  12. Place Spacer Plates between the Bottom Reinforcement Plate and the Pivot Plates. Bolt these with 6" bolts

    • Place Spacer Plates between the Bottom Reinforcement Plate and the Pivot Plates. Bolt these with 6" bolts

  13. Bolt the Pivot Plates to the Main Pivot Tubes.

    • Bolt the Pivot Plates to the Main Pivot Tubes.

    • Step 18 wisdom

  15. STep 19 ifo

    • STep 19 ifo

  16. Step 20

    • Step 20

  17. Step 21 Step 21

    • Step 21

    • Zero - flip pivot upside down using a hoist

    • build cylinder bottom mount plates consisting of one by four whole plate pieces

    • cut bushings four-cylinder bottom mount and bolt cylinder mount one by fours to the pivot part one

    • Cut 7.5 inch 1 inch shaft to size and weld a T handle on it consisting of a piece of 2" x 0.5" rebar

    • place cylinder in position and place shaft through Buesching and cylinder mount and through second Bushing

    • hold in place to where it will be welded put a small spacer underneath the rod and part of the cylinder to fit exactly within The 4 inch cavity of pivot part one.

    • The bushing location should be exactly 1.6 inches behind the & whole of the one by four hole plate, Or right behind the hole So that people can be put in the fourth hole of the one by four hole plate

    • Repeat for the second cylinder

    • Build cylinder rod and mount

    • take a 2 x 3 whole plate and notch out a space on the one and that is two and three-quarter inches from the edges and 2 inches deep.

    • Take a second plate which is an unfinished pivot plate and cut it down to 11 1/2 inches on the long side and cut off 1/2 inch from all sides to make it slightly smaller than the 3 x 2 whole plate

    • weld these two pieces together all around the edges for a solid fit.

    • Weld the 2 inch mounting bushings around the notch exactly 1.5 inches away from the edge of the 2 x 3 plate. Make sure that the spacing between them is exactly 2.25 inches or the width of the rod and cylinder tube. Weld with the shaft in place

    • weld the 2 x 3 gusset plate right in front of the cylinder mount bushings and weld solidly to the plate assembly. Do two of these per mounting plate.

    • repeat for the second cylinder

    • bolt the Rod and mount plate to pivot part two using short bolts. Do this only hand tight.

    • Put in the rod and mounting pin to make sure it fits

    • take off the Rob and mounting plate and put on two pivot plates. For mounting the boom

    • Bolt on the cylinder boom cylinder mounting assembly to the top of that part two

    • Mount the quick attach Finger assemblies on the tractor - at hole 10 on the front loader

    • Add spacer behind the assemblies so they clear bolts on pivot. (Extra pivot plates used as spacers in this build)

  36. Move tractor to the backhoe and put the upper quick attach finger weldment into place on both the right and left-hand sides Of the quick attach and tack into place Add triangular support to side of finger for strength Add triangular support to side of finger for strength

    • Move tractor to the backhoe and put the upper quick attach finger weldment into place on both the right and left-hand sides Of the quick attach and tack into place

    • Add triangular support to side of finger for strength

  37. Add fingers for bottom of Quick Attach Determine the location of the latch hole for the bottom quick attach part and torch it out Determine the location of the latch hole for the bottom quick attach part and torch it out

    • Add fingers for bottom of Quick Attach

    • Determine the location of the latch hole for the bottom quick attach part and torch it out

    • Put the bottom quick attach plate weldment into place on the backhoe and tack

    • Move tractor away and finish weld the quick attach plates on the Backhoe

Author

with 3 other contributors

Robert Kirk

Member since: 04/28/2013

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