Assemble H-arms: Difference between revisions
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'''Main Arms''' | '''Main Arms - build main arms, hang them on tractor, but do not weld anything until cross beam and bottom are aligned.''' | ||
*[2] Cut 4-1/2” piece of 1-7/8” DOM. | *[2] Cut 4-1/2” piece of 1-7/8” DOM. | ||
| Line 12: | Line 12: | ||
*Insert DOM gusset into loader arm. | *Insert DOM gusset into loader arm. | ||
*Mount 1 loader arm at a time onto the shaft. | *Mount 1 loader arm at a time onto the shaft. | ||
*Align both arms to rest on the bottom of the frame without any welding - then work on the cross arms - bolting them together while retaining alignment of bottom of arms. | |||
''' | '''Cross Arms - fit in cross arms, tighten, and then fix the pivot and QA pivot to retain alignment.''' | ||
*Cut 54" cross arms. | *Cut 54" cross arms. | ||
| Line 37: | Line 29: | ||
*Align them | *Align them | ||
*Fit cross arms and bolt them on, using metal lock nuts. | *Fit cross arms and bolt them on, using metal lock nuts. | ||
*Tack DOM in place | |||
*Raise arms. | '''Eyes - with cross arms tight, make eyes align, ''' | ||
*Cut [2] 3x7x1" pieces with bandsaw. | |||
*Weld pieces together. | |||
*Drill eye hole in weldment. | |||
*Torch out a 3"x 1" slit in loader arm top. | |||
*Cut piece of 1" rebar for inside of arms, reinforcement. | |||
*Insert 1" shaft through both eyes | |||
*Tack weld eyes and DOM pivots in place. | |||
*Raise arms to make sure they clear the frame. | |||
*Check for alignment, and realign if needed. | *Check for alignment, and realign if needed. | ||
* | *Weld eyes and DOM pivot in place. | ||
* | *Weld 1" rebar reinforcement in eyes. | ||
*Move through the range of rotation of the QA plate to confirm alignment. | *Move through the range of rotation of the QA plate to confirm alignment. | ||
*After welding, grind and clean as needed. | *After welding, grind and clean as needed. | ||
[[Category:Fabrication Procedures]] | [[Category:Fabrication Procedures]] | ||
Latest revision as of 21:01, 19 June 2011
Main Arms - build main arms, hang them on tractor, but do not weld anything until cross beam and bottom are aligned.
- [2] Cut 4-1/2” piece of 1-7/8” DOM.
- [2] Cut 3-1/2” piece of 1-7/8” DOM.
- Mark position of loader shaft for diameter of DOM.
- Torch loader shaft, considering that 1-7/8” DOM gussets are used.
- Measure location of loader arms on frame.
- Torch loader arm location in frame.
- Place gussets in tractor frame.
- Fit 1-7/8” shaft through gussets.
- [2] Mount 1-7/8” washers outside of frame and inside of arms.
- Insert DOM gusset into loader arm.
- Mount 1 loader arm at a time onto the shaft.
- Align both arms to rest on the bottom of the frame without any welding - then work on the cross arms - bolting them together while retaining alignment of bottom of arms.
Cross Arms - fit in cross arms, tighten, and then fix the pivot and QA pivot to retain alignment.
- Cut 54" cross arms.
- [4] Cut 1/2"x4"x6" angle - 6" long.
- Drill 3 holes on long side and 2 holes on short side.
- Long side goes on cross arm, shoft side goes on main arms.
- Measure location for mounting of cross arms on the main arms.
- Fit and clamp the cross arm in place.
- Transfer punch hole locations on one side of loader arms.
- Take loader arms off one by one.
- Mark other side of cross arm-mounting bolt locations.
- Annular cutter mag drill through main arms.
- Remount main arms on 1-7/8" shaft, use washers and 2 double split collars
- Align them
- Fit cross arms and bolt them on, using metal lock nuts.
Eyes - with cross arms tight, make eyes align,
- Cut [2] 3x7x1" pieces with bandsaw.
- Weld pieces together.
- Drill eye hole in weldment.
- Torch out a 3"x 1" slit in loader arm top.
- Cut piece of 1" rebar for inside of arms, reinforcement.
- Insert 1" shaft through both eyes
- Tack weld eyes and DOM pivots in place.
- Raise arms to make sure they clear the frame.
- Check for alignment, and realign if needed.
- Weld eyes and DOM pivot in place.
- Weld 1" rebar reinforcement in eyes.
- Move through the range of rotation of the QA plate to confirm alignment.
- After welding, grind and clean as needed.