USA Trains EMD NW-2 User manual

USA TRAINS
P.O. BOX 100
MALDEN, MA 02148
EMD NW-2
DIESEL LOCOMOTIVE
OWNERS MANUAL
KNUCKLE COUPLER INSTALLATION
This USA Trains locomotive is warranted for one year from the date of
purchase against defects in material or workmanship. We will repair or
replace (at our option) the defective part without charge for parts or
labor within one year of the original date of purchase provided the war-
ranty registration card has been received by USA Trains. This warranty
does not cover items that have been abused or damaged by careless
handling or improper operation such as a train derailment, modification
or repair by non-factory technicians. Parts that “wear out” due to exces-
sive use are also not covered under warranty. USA Trains reserves the right
to to determine “excessive use”. Transportation costs incurred by the cus-
tomer are not covered under this warranty.
This Diesel locomotive is built with pride by USA Trains and is covered by
a limited warranty. (See limited warranty terms). Please follow these
instructions carefully before sending your locomotive for service:
1. Return locomotive in its original blue/red box with the proper foam
inserts and then pack the original box in a proper shipping carton so it is
well protected in shipment. The package must be fully insured and pre-
paid. USA Trains is not responsible for damage or loss during shipment.
2. Include a note explaining the problem and servicing you need per-
formed. Be sure to include your name, street address, (NO P.O. BOXES
PLEASE) City, State, Country (if outside U.S.A) and zip code along with a
daytime phone number including area code. If the locomotive service is
not covered by warranty, a reasonable service fee will be charged. For
any locomotives to be returned outside the continental U.S.A., please
include $25.00 U.S. currency to cover return postage. Any locomotives
returned in the continental U.S.A. will be pre-paid by USA Trains.
3. Ship your item to: USA TRAINS
662 CROSS STREET
MALDEN, MA. 02148
SERVICING
LIMITED ONE YEAR WARRANTY
•
•
•
Remove Hook & Loop coupler.
Clip tab "A" from end of tongue
and file smooth.
Attach USA knuckle coupler "B"
with #4 screw (C) provided. A
B
C

FEATURES
HISTORY OF THE EMD NW-2 AND CALF UNIT
Dear Customer,
Congratulations on your purchase of this highly
detailed replica of the electro-motive (EMD) NW-
2 switcher.
The engineering and design staff at USA Trains
has spent many hours reviewing original blue-
prints and developing a locomotive that looks
authentic and will provide you with many hours
of operating enjoyment all at a reasonable price. This locomotive will
enhance the appearance of any modelers railroad.
Please read the following instructions which will help you understand
and operate the numerous features of this locomotive.
Happy Railroading
USA TRAINS
ITEM PART DESCRIPTION PRICE
NO NO.
14 R22-14 TRUCK SIDEFRAME (2) $8.95
15 R22-15 TRUCK MOUNTING BLOCK (1) 3.50
16 R22-16 FUEL TANK (SPECIFY COLOR) 8.95
17 R22-17 SLIDE SHOES & SPRINGS (4) 4.50
18 R22-18 SIDE/CORNER HANDRAILS - NW-2 (2) 3.95
19 R22-19 CORNER STEPS (SPECIFY COLOR) (4) 4.95
20 R22-20 AIR HOSES (16) 8.95
21 R22-21 REAR SIDE/CORNER HANDRAILS-CALF UNIT (2) 5.95
22 R22-22 FRONT/REAR HANDRAILS (2) 12.95
23 R22-23 WINDSHIELD WIPERS (4) 2.50
24 R22-011 METAL WHEELS WITH GEARS (2) 9.95
R50001 USA TRAINS SMOKE FLUID (1) 7.95
R50002 USA TRAINS CONDUCTIVE LUBRICANT (1) 10.95
5
6
7
8
910
12
1314 111516
Please use diagram above and circle the required part(s)
Fax copy with method of payment or mail with check made payable to
USA Trains, P.O. Box 100 Malden, MA 02148
Include $5.00 for shipping & handling. Phone: [phone] Fax: [phone]
Electro-Motive first introduced the NW-2 in February, 1939 and contin-
ued its production until December, 1949. It was the second most popular
switcher built, with 1143 units constructed during its ten year run. It may
have been the most popular, but the war production board during World
War II dictated that EMD produce only road diesels and any production
of the NW-2 was suspended from 1942 until 1945.
The NW-2 was powered by EMD’S new 12 cylinder 567 series diesel
engine producing 1000 H.P. The other features of this locomotive were MU
capability as a standard option and a cabless booster version to make
two or three-unit transfer versions commonly called “cow-calves”.
The accurate reproduction of this locomotive by USA Trains will allow
the modeler of the early diesel-late steam era to have his favorite railroad
diesel switcher “nested” among the steamers at the roundhouse.
• Powerful dual-motor 8 wheel drive powertrain.
• Dual operating smoke stacks puff real smoke.
• Metal handrails.
• Front & rear directional lighting.
• Interior cab lighting.
• Opening cab doors.
• Detailed cab interior complete with engineer and control panel.
• Authentic detailing including diamond plate walkways, grating on
steps, window shades, sliding windows, and MU connections.
• Expert decoration reproducing authentic paint schemes of your
favorite railroad.

ASSEMBLY
ITEM PART DESCRIPTION PRICE
NO NO
1 R22-01 SUNSHADE (
specify color ) $2.50
2 R22-02 DIESEL HORN 2.50
3 R22-03 SMOKE STACK (1) 3.50
4 R22-04 SMOKE UNIT 16.95
5 R22-05 BELL & BELL HOLDER 4.95
6 R22-06 LENS COVER (1) 2.50
7 R22-07 LIGHT BULB AND WIRE (
also for cab and rear light ) 3.50
8 R22-08 FRONT SIDE/CORNER RAILS - NW-2 (2) 6.95
9 R22-09 COUPLER MOUNTING BLOCK & PIVOT ARM (
no coupler ) 6.95
10 R22-10 COUPLER SPRING & MOUNTING PLATE 2.50
11 R22-11 TRUCK SIDEFRAME SPRINGS (8) 2.50
12 R22-12 REPLACEMENT MOTOR TRUCK (1) 29.95
13 R22-13 REPLACEMENT MOTOR ONLY (1) 19.95
21 3 4
17 241819
20
22
21
23 Due to the high level of detail designed into the USA Trains NW-2 and
calf unit, some simple assembly is required.
(1) BELL/SMOKE STACK
See diagram below for simple insertion into the proper holes.
(2) HANDRAILS/STEPS
See two diagrams below for simple insertion into the proper holes.
(3) AIR HOSE
See diagram below for simple insertion into the proper holes.
(Calf only)
(NW-2 only)
NO T E-There are two different
handrail connectors. One should
match each different handrail
shape (round with round and
square with square).
(1) (3)
(2) (2)
Add drop of glue to secure eyebolt.
Prices shown are prices in effect at time of printing. Prices are subject to change without notice.

CAUTION! To prevent generator burnout, never run the locomotive without smoke
fluid in the smoke generator. If no smoke is in the generator, switch smoke genera-
tion to the OFF position. For more info, see smoke generator operation instructions.
SMOKE GENERATOR
The locomotive contains two smoke units which produce ”diesel
exhaust” through the two stacks on the top side of the cab body. The
smoke generators require the periodic addition of smoke fluid in order to
operate properly. When doing so make sure the switch marked “smoke”
in the front of the locomotive (see control box switch operation above) is
in the OFF position. Remove both stacks from the top of the locomotive,
and add 10-20 drops of USA Trains smoke fluid (USA Trains Part #R50001) to
BOTH smoke generator holes. Never overfill the smoke generator and
promptly wipe up any excess smoke fluid that may have spilled onto any
painted surfaces. Place both smoke stacks back on the top of the loco-
motive. Turn the smoke unit switch to the ON position and begin opera-
tion. Smoke production will begin when the fluid becomes heated. It may
take longer to generate the smoke if the unit is full. By following these
directions the smoke generator will provide hours of enjoyment and
enhance the realistic operation of your NW-2 locomotive.
CAUTION! NEVER RUN THE UNIT WITHOUT SMOKE FLUID UNLESS THE SMOKE SWITCH IS IN
THE OFF POSITION. THIS WILL PREVENT THE SMOKE GENERATOR FROM BURNING OUT!
NOTE: It is not uncommon for the front stack to smoke more than the rear
stack due to the draft created by movement of the locomotive
POWER PLUGS
Each locomotive is equiped with two recepticles to power sound or
lights only. Do not interconnect any two locomotives together using these
plugs or damage to one or both units will occur.
POWER REQUIREMENTS
The locomotive is designed to operate on direct current (DC) with out-
puts of 0-22 volts.
CONTROL BOX SWITCH
The locomotive contains three switches to operate the on/off motors,
on/off smoke generator, and on/off lights. To access the switches, pull up
gently on the grab rail of the vent grill on the front of the locomotive. (see
diagram below)
LUBRICATION
Your locomotive was lubricated at the factory and under normal oper-
ating conditions will not need to be lubricated during the first 50 hours of
operation. The locomotive has three lubrication points. (See diagram
below)
1. SIDEFRAME JOURNAL BOX: The axle ends fit into brass bushings which
brings power into the locomotive. These brass bushings should periodically
be cleaned out and lubricated with a small amount of U.S.A.Trains electri-
cally conductive lubricant (USA Trains Part #R50002). Use only our conduc-
tive lubricant to avoid loss of electrical contact which could cause your
locomotive to loose power or run erratically. The frequency of lubrication
depends on your operating conditions.
2. AXLE LUBRICATION: Two drops of oil should be placed on all four con-
tact points where the axle enters the gear box. An ultra light oil such as
Hob-E-Lube (#HL653) is recommended.
3. GEAR BOX LUBRICATION: Under normal operating conditions, the gear
box should not have to be lubricated. However, you may want to lubri-
cate the gears after each 100 hours of operation by removing the four
screws on the bottom of the gear box to expose the gears and applying
moly grease by Hob-E-Lube to the gears on the axle only. Do not apply
grease to any electrical contacts inside the gear box as you may hinder
the electrical contacts required for smooth operation.
WHEEL/SLIDE SHOES
The NW-2 and calf units are equipped with twelve electrical pickup
points-six per motor truck. Each of these must be cleaned periodically to
ensure proper electrical contact with the track and to ensure smooth
operation of your locomotive. Clean all four wheels and the bottom sur-
face of the slide shoes periodically to ensure good electrical contact with
the track. A good indication that you need to clean these contacts is
flickering lights, non-operation of the smoke unit, or a jerking motion of the
locomotive.
1
2
GEAR BOX
2
1
1
2
2
1
(3)
Gently pull upward and outward on the grabrail to access the switch box
OPERATION
MAINTAINING AND SERVICING YOUR NW-2 AND CALF