Kozo K27 Lead Truck
The axle for the lead truck has been
turned and is ready for the wheels. August 23, 2015.
Starting to work on the blanks for the
lead and trailing truck wheels. The top three have just been contoured
on the rear side. The bottom one is a completed blank with both side
contoured. August 30, 2015.
A completed wheel blank set on the
lead truck axle. August 30, 2015.
The four blanks for the leading and
trailing trucks have been completed and will need to have the tread and
flange turned next. September 6, 2015.
The treads and flanges have been
roughed out. Next up is tapering the treads and then shaping the
flange. September 7, 2015.
The front two have been completely
shaped and polished a bit. The back two will need some rounding of the
flange, angling of the edge of the tread and then polishing. September
All four have been contoured and
polished. September 13, 2015.
Work has started on the upper portion
of the lead truck bearing block. The block still needs some tapering on
the top side for the centering device, notching of the opposite
side, a few holes and boring for the axle shaft once the lower bearing
caps have been fitted. September 13, 2015.
The completed lead truck bearing block
with caps and the axle. September 20, 2015.
The assembled lead truck bearing block
and wheel set. Not the oiling holes on the top of the block. September
This is the completed bistle post
sleeve that is part of the lead truck centering assembly. September 26,
The main part of the bistle post has
been machined and will slide up and down in the sleeve in the previous
photograph. September 26, 2105.
This is the lead truck radius bar and
my first silver soldered piece. The lower joint flowed better than the
upper joint with a nice fillet. The upper joint has a slight puddle of
solder that did not flow into the joint and will need a bit of cleanup.
The next step will be to solder the attachment joint at the other end
of the piece. October 3, 2015.
The bearing cap screws will be
replaced with longer screws to attach the radius bar to the bearing
block. Note that the radius bar will actually be flipped over to attach
to the bearing block. October 3, 2015.
The radius bar for the lead truck with
pivot point silver soldered. October 4, 2015.
The cap for the bistle post has been
turned. October 18, 2015.
The hanger which will fit inside the bistle post has been shaped and
soldered. October 24, 2015.
The pivot and pin have been added to
the radius bar at the far left. The top of the brass bearing box has
been shaped for the roller of the centering device. October 24, 2015.
Today I worked on rollers, bushings
and pins. The bushings fit inside the rollers and one roller will be
used on the lead truck with the other two for the trailing truck. The
long pin will fasten a roller to the bistle post and the short pin is
for the pivot of the trailing truck. October 25, 2015.
Trailing Truck Page 4