Supplementary Document

7
6. Assemble a 2.38" long spacer (S), a 3/4" at washer
(O), the middle brace, a 3/4" at washer (O) and a
3.90" long spacer (Q) onto the long end of the shaft.
The bent lip of the middle brace must face the short
end of the shaft. Next assemble a spool assembly,
a 5.29" long spacer (T), another spool assembly, a
1.00" long spacer (R) and a 3/4" at washer (O) onto
the shaft. See gure 4.
FIGURE 5
FIGURE 6
8. Assemble a wheel to a wheel bracket using a 1/2" x
3-1/4" hex bolt (A), two 1/2" washers (P), a 1/2" jam
nut (M) and a 1/2" nylock jam nut (I). Adjust the nuts
so that the wheel is held securely but will spin freely.
Repeat on other side. See gure 6.
FIGURE 7
9. Assemble the hitch bracket to the tongue using
two 3/8" x 1" hex bolts (D) and 3/8" nylock nuts (J).
Tighten. See gure 7.
10. Assemble the hitch pin (G) through the hitch bracket
and the tongue. Secure it with the hair cotter pin (H).
See gure 7.
7. Rotate the wheel bracket fastened to the middle of
the shaft so that it is pointing upward. Assemble an
end plate, a 3/4" at washer (O) and a second wheel
bracket onto the long end of the shaft. Point this
wheel bracket as shown in gure 5. Secure it to the
shaft using a 1/4" x 1-3/4" hex bolt (B) and 1/4" nylock
nut (L). Tighten. Repeat on short end of shaft.
FIGURE 4
3/8" NYLOCK NUT (J)
3/8" x 1"
HEX BOLT (D)
HAIR COTTER PIN (H)
HITCH
PIN (G)
1/4" x 1-3/4"
HEX BOLT (B)
1/4" NYLOCK NUT (L)
3/4" FLAT WASHER (O)
MIDDLE WHEEL BRACKET
POINTING UP
1/2" NYLOCK
JAM NUT (I)
1/2" x 3-1/4"
HEX BOLT (A)
1/2"JAM NUT (M)
1/2" WASHER (P)
1/2" WASHER (P)
2.38" LONG
SPACER (S)
1.00" LONG
SPACER (R)
3/4" FLAT
WASHER (O)
MIDDLE
BRACE
3.90" LONG
SPACER (Q)
3/4" FLAT
WASHER (O)
LONG END
OF SHAFT
5.29" LONG
SPACER (T)
ENGLISH