Hitch/Bumper Assembly
1.
Now we will assemble the bumpers and hitches to the car ends. Using figure 1 make the
appropriate measurements and then glue the called out parts to the measurements. Before gluing
part 13 to the car end you will need to drill out the top of the hook with a #60 drill bit at the
locator holes.
39mm
15mm
10mm
5mm
13
1
1
3
3
2.
Next you will need to drill out parts 6&11 using a #47 drill bit. This will allow the jack
screw to slide into the blocks and the adjust handle to slide between the blocks. Now drill
out parts 10,12 and the other side of part 6 using a #60 drill bit. I recommend you do the
drilling with the parts still attached to the casting block. Now assemble the hitch assembly
per figure 2.
Fig. 1
13
10
.040” Rod
8
11
.040” Rod
6
12
8
3.
Now install 2ea air valves to the car ends between part 1 and 13. Next using
some tubing install part 5 on the end and install into one of the air control
valves. Using another piece of tubing install part 7 and install into the other
valve. See figure 3.
Fig. 2
2
2
2
