Gary Zingale made one out of bolts and square tubing and
used the otc in his.........
Actually the parts, in addition to the OTC927 puller consist of:
2 - 5/8" X 11 1/2" threaded rods ground down to allow them to
clear the OTC927. These rods are very highly stressed so I
used grade 8 rod. If I built it again I might even go to 11/16" rod.
More grinding for clearance but less bending in use.
2 - 1 1/4" X 1 1/4" X 6 1/2" sq lateral support tubes. The threaded
rods go through these tubes. The lateral loads on the puller
are severe enough that even grade 8 threaded rod bends. With
these support tubes the bending is reduced enough that I could
get the job done.
If I built it again I would probably make the tubes and threaded
rods listed above about 1" or 1 1/2" shorter. This would reduce
the distance from the cross bar of the puller to the pork chop and
thereby reduce the lateral loading.
1 - 1 1/4" X 1 1/4" X 8 1/2" sq cross tube. Holes are drilled at either
end of this tube for the threaded rods to pass through. Another hole
was placed in the middle of this tube for a 5/16" bolt to pass through.
The 5/16" bolt acts as a pin and engages a hole in the frame cross
member and prevents the tool from sliding while in use.
With the exception of the threaded rod none of the materials needed
to be exactly as I used. I simply visited the scrap metal bin and found
"stuff" to build it from.
I have been working on preparation of a couple of things for Gene,
the above puller as well as the spindle puller I used during the overhaul=
of the rear suspension, but as is usually the case many other things
have gotten in the way of finishing the documentation, overhauling the
Onan, Christmas, work etc.
If the above discription is not quite enough Scott has a picture on his
Web site of the Torsion Bar Unloader in use that may help.
Regards
Gary ZIngle
1973 GMC 26 foot
used the otc in his.........
Actually the parts, in addition to the OTC927 puller consist of:
2 - 5/8" X 11 1/2" threaded rods ground down to allow them to
clear the OTC927. These rods are very highly stressed so I
used grade 8 rod. If I built it again I might even go to 11/16" rod.
More grinding for clearance but less bending in use.
2 - 1 1/4" X 1 1/4" X 6 1/2" sq lateral support tubes. The threaded
rods go through these tubes. The lateral loads on the puller
are severe enough that even grade 8 threaded rod bends. With
these support tubes the bending is reduced enough that I could
get the job done.
If I built it again I would probably make the tubes and threaded
rods listed above about 1" or 1 1/2" shorter. This would reduce
the distance from the cross bar of the puller to the pork chop and
thereby reduce the lateral loading.
1 - 1 1/4" X 1 1/4" X 8 1/2" sq cross tube. Holes are drilled at either
end of this tube for the threaded rods to pass through. Another hole
was placed in the middle of this tube for a 5/16" bolt to pass through.
The 5/16" bolt acts as a pin and engages a hole in the frame cross
member and prevents the tool from sliding while in use.
With the exception of the threaded rod none of the materials needed
to be exactly as I used. I simply visited the scrap metal bin and found
"stuff" to build it from.
I have been working on preparation of a couple of things for Gene,
the above puller as well as the spindle puller I used during the overhaul=
of the rear suspension, but as is usually the case many other things
have gotten in the way of finishing the documentation, overhauling the
Onan, Christmas, work etc.
If the above discription is not quite enough Scott has a picture on his
Web site of the Torsion Bar Unloader in use that may help.
Regards
Gary ZIngle
1973 GMC 26 foot
