Bachmann Williams O-27 User manual

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Bachmann Industries, Inc.
1400 East Erie Avenue, Philadelphia, PA 19124 USA
www.bachmanntrains.com
Customer Service Telephone [phone]
O-27 ALCO POWERED DIESEL LOCOMOTIVE INSTRUCTIONS
Thank you for purchasing a Williams by Bachmann® locomotive. This locomotive has been manufactured to provide
years of use and enjoyment. Please follow the simple instructions below.
This locomotive has been greased and tested before leaving the factory. Before operating, please lightly lubricate the
points shown in the diagram below. Do not over-lubricate and take extra care to avoid getting lubricants on the wheel
surfaces or traction tires.
1. For the axles and coupler pivot points Marked A, we recommend that you lubricate with a small amount of light
oil such as Bachmann E-Z Lube® #99984 Light Gear Oil. Do not over-lubricate.
2. For areas that require electrical flow, such as roller pick-ups Marked B, please use Bachmann E-Z Lube®
#99981 Conductive Contact Lube. Never use any Teflon® based oil on these areas because this type oil has
insulating properties.
3. For the gears Marked C we recommend that you lubricate with a small amount of heavy gear oil such as
Bachmann E-Z Lube® #99983 Heavy Gear Oil. Do not over-lubricate.

– Page 2 of 2 – Printed In China
OPERATION
After unpacking the locomotive, make sure that the uncoupling plunger is in the correct position with the pin inserted in
the knuckle (see figure 1). Failure to do so will allow the uncoupling plunger to contact the center rail and a direct short
will occur when power is applied to the track. We recommend using an AC hobby transformer with maximum voltage
output of 18 VAC and a wattage rating of at least 90 watts.
Throttle Control
The throttle control will allow you to operate your train at a wide range of speeds. Slowly turn the control knob until you
are familiar with the response of the locomotive that you are operating. Please note that our sound systems require 6 volts
or greater to operate correctly.
Horn Operation
To operate the horn of your locomotive, simply depress the horn /whistle button on your transformer. Our True Blast™
Horns will play a 6 second sequence one time.
Bell Operation
To operate the bell on your locomotive, press and hold the bell button for one second. To stop the bell, press and hold the
button for one second.
Direction Control
Williams reverse units sequence FORWARD, NEUTRAL, REVERSE, NEUTRAL, and again FOWARD. To sequence
the reverse board, simply depress and hold the direction button, release the button 1 second after the train has come to a
complete stop. PLEASE NOTE: If you do not wait for your train to come to a complete stop the reverse unit may not
always sequence properly. After approximately 7 seconds without power, the reverse board will reset to FORWARD.
Uncoupling
This locomotive is equipped with an operating knuckle coupler at the pilot end. The rear end of the locomotive has a fixed
coupler, to allow close coupling with the matching dummy A unit. To uncouple, position the uncoupling plunger over the
center of electro-magnetic track uncoupling section and activate the magnet. If you run this locomotive alone, you will
need to use the operating coupler on the first piece of rolling stock in your consist.
PERIODIC MAINTENANCE
Disassembly Instructions
For periodic maintenance, you will have to remove the body shell and motor trucks to gain access to the parts that require
servicing. The body shell is attached with four screws on the bottom of the locomotive frame. The screws are located in
each corner of the frame. After removing the body shell, unscrew the truck mounting screw shown in figure 1. This will
allow you to disengage the motor from the truck assembly. When servicing is complete re-attach the motor to the truck.
Make sure the worm gear is meshing with the truck gear before tightening the mounting screw completely. You can test
this by rotating the flywheel on top of the motor and the wheels on the truck will turn. Re-attach body shell using care not
to over-tighten the screws.
Lubrication
We recommend that you lubricate as directed on page 1 every 10 hours of operation. In addition, you also should check
the motor gearbox every 25 hours. After gaining access to the gearbox as instructed above, you can inspect the gears and
apply any necessary lubrication. We recommend Bachmann E-Z Lube® #99982 Grease, or equivalent.
Traction Tire Replacement
Our traction tires are very durable and should not need replacing very frequently. They should last hundreds of hours
under normal conditions. If they wear out prematurely, check to make sure your track joints are tight. Gaps in your track
can cause damage to the tires. To replace the traction tires follow the disassembly instructions above. Next remove the
two screws that attach each sideframe. Remove old tire if present, clean wheel groove with any degreasing agent making
sure to follow the safety and handling instructions on the degreasing agent’s bottle. Wipe dry with paper towel or
clean rag. Stretch the new traction tire over the wheel making sure that it does not twist and seats smoothly in the wheel
groove. Re-attach the sideframes and re-assemble as directed above.
Light Bulb Replacement
This locomotive uses a 12 volt grain of wheat bulb.

Bachmann Industries, Inc.
O-27 Alco Powered Parts List Rev 10.15.08 Printed in China
,
1400 East Erie Ave, Philadelphia, PA 19124 USA
www.bachmanntrains.com
Customer Service Tele
p
hone 800-356-3910
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O-27 ALCO BODY & BODY PARTS
2072-02-01 Die-Cast Chassis Complete 1
1-30180DPA Bod
y
Mountin
g
Screw
(
Front
)
2
30 80
ody ounting Sc ew( ont)
1-30100DPB Body Mounting Screw(Rear) 2
2072-E002 Body Shell Complete 1
2072-E003 /E004
N
umber Board - Right & Left 1 each
2072-E007 Ornamental Horn & Bracket 1
2072-03-02 Headlight Lens 1
2072-03-07 Porthole Lens 7
1028-03-05 Headlight lens 1
2072-03-07 Windshield 1
2072-M003 Rear Ladder 1
TRUCK PARTS
293-E006 Powered Truck Assembly 2
293-M023FR1 Flanged Wheel 4
293-M024FR1 Flanged Wheel w/groove 4
293-X003 Traction Tire 4
293-M029NR5
Axle
4
293
-
M029NR5
Axle
4
293-M010NR4 Axle for Helical Gear 2
293-M012R5 Helical Gea
r
2
293-M025DR3 Wheel Gear / Large Idler Gear 6
293-M026DR4 Small Idler Gea
r
4
293-M011NR1 Pin for Small Idler gear 4
1-30140DPM Truck Mounting Screw 2
293-E001 Operating Coupler Assembly 1
293-M017 Coupler Mounting Bracket 2
293-07-01B
N
on-Operating Coupler 1
885-M013R1 Spring for Non- Operating coupler 1
1-26060DPWM
M
ounting Screw for non-operating coupler 1
293-E002R1 Roller Pickup Assembly 1
293-01-02 Top Insulator for Roller Pickup 2
293-01-03 Bottom Insulator for Roller Pickup 2
1-26220DPM Roller Picku
p
Mountin
g
Screw 2
1 26220DPM
Roller
Pickup
Mounting
Screw
2
1028-04-01 Sideframe 4
1-30060DPM Sideframe / Bolster Mounting Screw 12
293-M013R1B Truck Bolster 2
MOTOR PARTS
2072-E001 Motor Assembly w/Motor Mount 2
293-10-03BR1
M
otor Mount 2
322-M012R2 Grounding Plate 2
1 26060DPM
Mt M tS L
4
1
-
26060
DPM
M
otor Mount
S
crew-Large 4
1-30060DPS
M
otor Mount Screw-Small 2
ELECTRONICS
00247 Reverse Board (available from your dealer) 1
885-E004 True Blast II - Diesel NW-2/ O-27 Alco Version 1
See Diagram on opposite side for identification. Parts shown in Italics are not illustrated.
O-27 Alco Powered Parts List Rev 10.15.08 Printed in China