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GENERAL INSTRUCTIONS:
Read instructions completely to become
familiar with individual parts and assembly procedure. Study exploded
view Fig. C, note each part is numbered relating to text. Study pattern of
pre-cast holes on underside of sill (15), compare to sketch and identify
BRAKE WHEEL END. Pencil a letter “B” on underside at that end to avoid
mix up later.
Clean flash from parts with a knife blade, or gentle file strokes. Flashing
may be found in openings on sides and undersides of log bunks (23 & 24),
on centrifugal dirt trap (4, Fig. D), queen posts (22), stakes (25) and brake
wheel (12). Note dirt trap and piping must be detached from air tank (1)
as shown in Fig. D. This part should be detached prior to removing flash
from trap itself. The trap pipe cements into elbow on air tank later when
assembling brake rigging on center sill. The brake wheel comes attached
to a sprue which is removed by carefully gripping wheel with pliers as
shown Fig. A, then apply finger pressure downward to break away sprue
piece. Clean flash from holes in queen posts (22), then break away flash
from shank (Fig. B). Lightly file point of shank to remove burrs, DO NOT
shorten shank in the process. As with brake wheel, grip queen post with
pliers while pressing down on sprue piece to break it away.
Note also, end log bunks (23) are allowed back and forth movement in
elongated holes of center sill (15). This is to facilitate capturing the truss
system between end bunks.
STAKE AND CHAIN ASSEMBLY:
Logs sometimes were held to cars with
chains wrapped aroung the load as a safety measure, usually when cars
were interchanged for handling on common carrier roads. Private logging
roads seldom followed this practice for their own traffic it seems. Those
who wish, could procure chain for this purpose, or use sewing thread to
simulate wire cable, which the prototypes also used. At any rate, on this
model, the logs are held by stakes (25) standing erect in each end of the
log bunks (23 & 24). Chain supplied is meant to attach to these stakes to
adjust and lock them in position for loading.
From the length of chain supplied, cut a piece 5/8” long. LAY THIS ASIDE
FOR LATER USE WITH THE BRAKE SYSTEM. Remaining chain is to be
cut into eight equal parts, each about 1 7/8” long. One of these (27) is
attached to each stake (25). Fig. E shows one method where a clamp type
tweezer is buried in modeling clay, the chain gripped so one end hangs
free. Hold stake so last link of chain Is between holes in stake legs. Feed
length of wire (supplied) through stake leg on one side, through end chain
link, and finally through opposite stake leg. This forms chain anchor wire
(30). With chain thus captured, flatten end of wire between pillar jaws.
Trim squashed wire on dashed line (Fig. F inset). Leave enough flare to
stop wire from pulling back through hole. Force flattened end close to
stake side while wire Is trimmed close to stake on opposite side. Repeat
flattening and trimming here, as on first side. The object is to have as little
excess wire beyond stakes sides as possible, otherwise stake will not fit
down between bunk sides. Spread free ends of split grab ring (28) apart
to enter through end link of stake chain (27). One grab ring is attached
to each of the eight chains. Fig. G shows how NOT to spread this ring,
instead follow the arrows, in Fig H to spread ring ends sideways enough
to clear chain link. After inserting chain link, close ends of ring together.
STAKE TO BUNK: Insert plastic bushing (26) between legs of stake (25)
and center over holes in lower end of stake (see Fig. I). Using wire provided,
push length through hole in bunk end, through plastic bushing inside stake
and out through other side of bunk. This forms stake pivot wire (29). Use
pliers to force wire through with a twisting motion, wire being a snug fit in
bushing creates friction to hold it in place. Trim wire close to bunk sides.
With stakes in place, feed free end of chains (27) through side openings in
bunk, opposite from stake location (see Fig. K where only one stake and
chain is shown for clarity). To hold log load, stakes must be near vertical
and prevented from falling outward by chain adjustment on opposite end
of bunk. Here, chain links are caught between two lugs on bracket on bunk
side (Fig. J). Excess chain drapes down, Its end brought up with grab ring
(28) placed over a third outer lug on bracket. Lay these four completed
bunk assemblies (23-24) aside until later.
#103 TRUSS
LOG CAR
1
4
6
2
7
8
5
4
3
7
27
25
30
26
23
29
9
27
18
14
33
31
21
32
22
21
19
9
8
20 A
20 B
3
1
2
6
12
10
7
16
7
13
14
28
17
29
30
24
27
15
24
28
30
25
23
26
25
BRAKE
wHEEL
END
Fig. D
Fig. C
Fig. E
Fig. F
Fig. I
Fig. G
Fig. J
Fig. K
Fig. A
Fig. B
22
press down
carefully
break away
remove flash
sharpen
point
DO NOT
shorten
shank
remove flash