REX 2-6-0 MOGUL 15 User manual

p\ 4 Instruction Booklet
for
I
2=6-0 MOGUL Model No. 15
Scale
I I
0-6-0 SWITCHER Model No. 21 Scale I
66 ??
Scale S Gauge Locos 1 1
I 66198 DmPeadv OF
- NdSG Rnc.
2-6-0 ROAD TENDER G
I 0-6 -0 SWlTGHfR TENDER
I
I S t P DISTRIBUTORS
90 Lucy Lane
I
1
Northfield, Ohio 44067

Mogul #15 Scale Loco Kit
Switcher #21 Scale Loco Kit
+Indicates parts and instmctions for 0-6-0
INTRODUCTION
The Rex Mogul is a free lance passenger or light freight locomotive
designed from several prototypes, most of which have long been scrapped.
They reached the heighth of their popularity between 1910 and 1930.
The closest prototype of this 2-6-0 wheel arrangement was the Green
Bay
& Western built by the American Locomotive Co., but many similar
locomotives built both by Baldwin
and American were quite common all
\
over the U.S.A.
PROTOTYPE SPECIFICATIONS
Total weight ............................................ 139,000lbs.
Tractive power ........................... ......... 25,000 lbs.
Water capacity ............................................ 5,000gals.
Driver diameter
.................................... 56 ins.
The American Locomotive Company furnished us erecting blueprints of
I
this locomotive and similar locomotives, which prints were used extensively
I
in the design of the Rex Mogul. It is a pleasure to acknowledge this
cooperation

1. UNPACK AND CHECK PARTS
0-6-0 Switcher
INTRODUCTION
The Rex Switcher is a free lance switching locomotive designed from
several prototypes, most of which have
been scrapped. They reached the
heighth of their popularity between
1910 and 1930.
The closest prototype of this 0-60 wheel arrangement was the Penn-
sylvania
B-6 built by the Pennsylvania Railroad Co., but many similar
locomotives were built
both by the American and Baldwin Locomotive
Companies.
These also were quite common in the U.S.A.
PROTOMPE SPECIFICATIONS
Total weight ....................... ... .............. Ibs.
Tractive power ........................... .. .............. 36,000 Ibs.
Water capacity .......................................... 4,000 gals.
I)rives diameter .......................................... 56 ins.
The Pennsylvania Railroad Company furnished us erection blueprints
of
this locomotive and similar locomotives, which prints were used exten-
sively in the design of the Rex Switcher. It is a pleasure to acknowledge
this cooperatioIL
Before proceeding with the various steps of assembly we ask that you
unpack the parts and check them against the list. If anything appears to
be missing or damaged please contad us. Extra parts may be ordered. Next
read the instructions thoroughly, identify hevarious parts and familiarize
yourself with the sequence in which you are going to need them for
assembly.
Where the right and left hand parts and assemblies are almost identical
and the text refers to one side only, it applies, of course to both sides.
KEEP THE EXPLODEDVIEW IN FRONT OF YOU AT ALL TIMES
AND REFER TO IT EACH STEP.
2. PREPARE CASTINGS
The kit contains many zinc castings which have exceptional detail and
a
accuracy. Before removing the flash and burrs from these castings we
suggest you familiarize yourself with
them from the drawings and photo-
z
graphs, so that you will not remove any of the fine rivets and other details
that it took our expert die makers many hours to build into the kit for
you. The dies were made by Culp Die Co. of Philadelphia, Pa. and the
castings were by the Canton Die Casting
Co. of Canton, Ohio and it is a
pleasure to pass on to these companies the
aedir they so justly deserve.
Any PART NEEDING STRAIGHTENING, APPLY HEAT OR PUT
IN HOT WATER, THIS WILL PREVENT BREAKAGE OF PART.
-
3. ASSEMBLE DRIVERS, SIDE RODS AND ENGINE TRUCK IN FRAME
*
These wheel assemblies are pressed and quartered on the axles at the
I
factory and no adjustment is required by the modeler.
Fit #201 front wheel axle and gear assembly into bearing slot in the
313 frame so that it turns freely. Fit $150~4 centerbearing block over

5 203 axle and wheel assembly and into center square slot in frame and
5.
MAKE SUB-ASSEMBLY OF CROSSHEAD AND MAIN ROD
sa that it turns freely. Then fit rear bearing over the axle of the *202
Next make up main rod and crosshead sub-assembliesas follows: fasten
reu wheel assembly so that it turns freely. Then fit the hearing blocks
e305L main rod to the *121 left hand crosshead and piston rod with
En:o the square slots of the $313 locomotive frame. ~t should rock up the
2132 shoulder screw. Fasten the other *305R rod to the 2120
and down from the center, but fit snugly front to back and side to side. risght'hand crosshead with shoulder screw. On the front end, where the
, ,
main rod fits into the crosshead, it should fit loosely on the shoulder
Tnis establishes the equalizing feature. The insulated wheels go on the when the screw is snugly fastened through the rod into the crosshead.
The
left, or firemen side with the locomotive facing forward. With the frame
ripside down assemble the #315 cover plate to the frame with the two
2145 screws. Be careful not to file too much off the top projections of
de cover plate where it contacts the front axle and the rear bearing blocks
or you will have a sloppy mechanism assembly. Place the g306L side rod
over the rear wheel crank pin and fasten them to the front and midd!e
wheel with the # 132 shoulder screws. Repeat same for right side.
Make sure that everything works freely and that the assembly can be
pushed effortlessly by the hand back and forth on the track.
The # 180 front wheel and axle assembly should be placed in the bearing
slot of the
#220 engine truck and held in position with a #I45 screw.
The axle must
be free to turn in the bearing slot. The scrm is used merely
to keep it in place. The front truck assembly is then fastened to the frame
with
$188 shoulder screw which also acts as a retaining screw for the
#315 covcrplate. On the front engine truck the *I86 spring should be
crosshead should slidkfree~~back and forth on the outside of the guides
with the main rod retainer lugs on the inside of the guides. If all these
parts are not PERFECTLY
FREE TO MOVE they will cause trouble
later on.
6. ASSEMBLE CYLINDER AND CROSSHEAD GUIDE UNIT
AND CROSSHEAD MAIN ROD UNIT IN PLACE.
You are now ready to fasten the previous!^ made sub-assemblies to the
frame. With two t 1 G8 screws and two
25 1 nuts fasten the sub-assembly
of the
$191 cylinder (with its fitted crosshead guides) to the 2313 frame.
This is a temporary assembly. When the boiler is later fastened to the
h
frame and cylinder, remove and discard the two nuts and complete the
assembly as described
in section 10. Now place the cross- and main rod
sub-assemblyin posiiion. Slide the crosshead into its final position between
.-
the crosshead guides with the piston rod in the center hole of the cylinder.
Then put the main rod over the crankpin
in the rear wheel and the outside
of the previously assembled side rods, and fasten to the crankpin with the
eccentric crank and
0-80 flathead screw in valve gear kit. Assemble part
,4 148 guide hanger to L313 frame with Y 145 screw. The rear end of
slipped in place over the lug provided for it in the +220 engine truck the crosshead guides should just come flush with the back of the guide
frame. hanger. Again
try the fit of the crosshead in the crosshead guides and
adjust until they have a
FREE SLIDING FIT. The mechanical assembly
should roll along the track with no interference of any kind. Do not
4. MAKE SUB-ASSEMBLY OF CYLINDER AND CROSSHEAD GUIDES
attempt to apply power either by dragging or pushing the assembly until
all interference has
been removed and mechanism rolls FREE AND LOOSE.
The four + 176 crosshead guides should next be pressed into the # 191
Use a few drops of light clock oil on all moving parts. A minimum of oil
B
cylinder. There is no other mechanical means for holding these crosshead should be used and applied with a toothpick or needle. Put the small hole
terminal end of the pickup wire through the hole on the back end of the
guides in place and they MUST FIT TIGHTLY enough so that they will frame. Slide the insulating tubing on
the wire first then thread through
Y
not come loose in operation. the hole. It will
be fastened to the left hand motor terminal.

7.
ASSEMBLE MOTOR AND TRY OUT MECHANISM.
8. ASSEMBLE ACCESSORYCASTINGS TO FRAME AND BOILER.
Solder 103 worm to $117 motor shaft. Set worm about
l/lG from
ezd of shaft and solder. Set motor and worm on a block of wood and
tet run to make sure motor runs freely and quietly. Oil wick on pully
erd of motor and on back end of annature. Use toothpick and light oil.
Farce $+I26 grommet in front motor mounting hole in top of $313
fnme. The grommet acts as a cushion mounting for the motor, also pro-
rides a means to tighten or loosen the worm and gear fit. Place rubber
wisher $134 between part +304 rear mounting lug of the motor and
the top of the *313 locomotive frame and fasten rear of motor in pIace
wth # 127 flat head screw. Put a Y 133washer through the clearance hole
io cover plate over the bottom of the front motor grommet and fasten
fnntof the motor with
?+ 145A screw. Check the fit of the worm and gear
-ti1 it will move with a minimum of play. Alternatelj ti'ghten the front
and rear motor mounting screws carefully, checking the gear mesh and
fit BY ROTATING THE MOTOR ARMATURE BY HAND.
Lubricate
the gears and all moving parts with a few drops of light oil. Now fasten
one terminal on the pickup wire to the left hand motor terminal with the
r197saew. If motor terminal is not tapped, the terminal may be soldered
in place. The contact lug on top of motor should be on the other or right
hand terminal post in the illustration. Again make sure no bind occurs in
any of the moving parts. Wirh the mechanism upside down touch the left
hand drivers and the pickup wire with your 12-volt D.C. power leads.
The mechanism should now run freely. If any bind or noise should occur
at this time it will probably be due to:
(1) Faulty gear adjustment, which can be eliminated with a screw
driver by loosening the front and rear motor screws until proper adjustment
is secured.
(2) Crosshead or rod bind. This latter difficulty, however, should have
been eliminated
if all steps listed previously have been followed. When
everything runs freely with the mechanism upside down you are now
ready to run the motor in for half hour or so in this position. The arma-
ture of a permanent magnet motor should never be removed, even for a
short while. Morors magnetized after assembly will be weakened instantly
by armature removal. The motor manufacturers' recommendation
is
maximum current on intermittant duty 1.0 amps; and the current at the
recommended speed of 10,000 rpm is 0.9 amps.
The two air $178 reservoirs (one on each side) are pushed in place
h
on the boiler underneath the running board. The $123 bell, #I38 air
compresser, 140 generator, # 177 number plate and *223 headlight are
. J
assembled into the holes provided for them and cemented in place. The
various accessories can
be assembled in any sequence,as long as they do
not interfere with each other.
9. ASSEMBLE HANDRAIL AND POSTS
The #323 and +I69 hand rail wire should be inserted through the
holes in the $135 hand rail
posts before the posts are pressed into place.
This prevents distorting the holes in the posts while they are being pressed
in. These little hand rail posts are made to scale. They are fragile and
CANNOT
BE ABUSED. If the posts do nor seem to fit in their holes
L tightly enough they can be held in place with a drop of metal cement. If
tight,
ream hole with a #66 drill.
qc
10. ASSEMBLE BOILER AND CAB TO FRAME.
Fit the ft310 cab into the slots provided at rear of boiler. Fasten with
one #I45 screw. The rear of the boiler fits over the platform on the
frame and
is fastened in place with two #I45 screws. The front of boiler
sets down on the cylinder saddle and is held
in place with two #I68
screws which pass through the frame and cylinder saddle into the holes in
the boiler.
These holes are threaded. The two +I73 front steps should be
loosely fastened to the locomotive frame with #I97 screws. When the
h
boiler is set in place it will locate the top of the steps in position. The
# 197 screws can be tightened after the # 168screws are in place. If # 168
.I
screws appear too long, fieoff a little and round the ends.

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Part Number
No . Needed
103 14
117 1 /
120 1
121 1
123 ld
126 ld
127 14
132 -6V
133 1J
134 1d
135 13 J
138 1d
140 1
145 . 7 J
145A 1.l
148 1
150
1 J
l50A 1 J
156 14
158 ld
168 2d
169 14
tn- 2-
176 4J
177 1J
178 2J
i80- +
182 2 J
4-66 4
*t
191 1 d'
197 3d
201 1 J
PRICE LIST PARTS FOR
REX 2-6-0 MOGUl & 0-6-0 SWITCHER
Price
each
............................. Worm gear. single thread. 56p 50
Pittman. motor DC71A ............................................ 6.50
................................ Crosshead & piston rod RH
50
Crosshead & piston rod LH ...................................... 50
Bell & bracket ......................................... 50
Grommet, rubber .............................................. 15
Screw d#4-40~3/8 flathead ........................................ 05
........................ . Shoulder screw for side and main rods :. 15
.............. Washer #2 S.A.E. 3/32 I.D.x1/40.D.x.020 05
Washer, rubber rear motor mount ................................ 05
Handrail posts ................................'......... 10
Air compressor, single .............................................. 45
Generator .......................................................... 40
.. Screws #jk2-56x 1/4 rd.hd. ........................................ .:
05
........ Screw $2-56 x 3/8 rd.hd. front motor mount
05
Guide hanger ............................................................ 85
rear bearing ............................................................. 35
Middle bearing ............................................................... 40
.......................... Comb . speed nut and box wrench
-65
Nut #440 hex ....................................................... 05
..... Screw #2-56 x 3/4 flat head ........................
10
Handrail, boiler front ............................................... 10
Front steps ....................................................................... 50
Cross head guides, sq . brass ................................ 10
Number plate .............................................................. 30
Air reservoirs ............................................................... 30
.......................... .
Wheels & axle Ass engine uuck-scale
45
...... Screws #2-56 x 3/16 rd . hd .................................... '
10
.......................................... Spring, engine lead truck
. 10
.............. Shoulder screw, truck pivot and cover plate
15
Cylinder & boiler saddle .......................................... 2.50
Screw #0-80 x 3/32 rd . hd ................................. 10
........................ .
Driver, gear & axle assem front-scale
3.75
Pan Number Price
No . Needed
each
202 1 *' Drivers. crankpin & axle assem rear-scale .......... 3.25
203 1"'
Drivers & axle assem . intermediate-scale ................ 3.00
I +SN- .-I- Engine truck frame .......................................... 50
......................................................................
223 1 / ht .50
&25 4- , Pilot & bolster ......................................................... 2.00
I 251 2 4 Hex-nut #2-56 ................................................................... 05
304
1 / Rear motor mount ........................................................ A0
305L 1 */ Main rod ....................................................................... 70
305R
1 ./ Main rod .................................................................. 70
306L I v' Side rod .................................................................... -60
306R 1 Side rod .......................................................................... 60
310 1 . J . Cab ............................................................................... 4.00
"' --d Boiler .......................................................................... 11.00
313 1 J Frame ......................................................................... 9.00
315 1
J Cover plate ................................................................ -70
321 1 d Tender to motor lead wire ............................................ ... . 40
323 2
;/ . Handrail, boiler .............................................................. 10
321A 1d Insulatingstock, leadwire ........................................... 10
L
*182A 2 . Pilot screws #2-56 x 1/8 .......................................... 10
8311 lv' . Boiler ........................................................................... 11.00
.......................................................
1 2328 / 1 Footboard & bolster 2.00
*223m 1 J Headlight ...................................................................... 50
*I82 11 Headlight screw #2-56 x 3/16 ...................................... 10
As an accommodation to those who might otherwise find it impossible
to purchase the complete
kit, we are offering Mogul and Switcher Kits in
three sections .
MOGUL KITS
.................... ..-. ............................................... 401 TenderKit .. .. 12.50
............................................................................
402 Boiler Assembly 15.50
403
Frame and mechanism ............................................................. 32.50
SWITCHER KITS
...................................................................................... 411 Tenderkit 13.50
I 412 Boiler assembly ......................................................................... 15.00
413
Frame and mechanism ............................................................ 32.00
. .
. 2 . :
L ._.
.....
,._- & '
11 . . 1 .
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