Bachmann Williams E7A User manual

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Bachmann Industries, Inc.
1400 East Erie Avenue, Philadelphia, PA 19124 USA
www.bachmanntrains.com
Customer Service Telephone [phone]
E7A 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.
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.

– Page 2 of 2 – Printed In China
OPERATION (continued)
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.
Mars Light
A Mars Light circuit will operate when the locomotive is traveling in the forward direction. This is an automatic feature.
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, or with a
Dummy B unit, 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 four screws, you will need to GENTLY spread the body skirt that covers the
fuel tank to release the body from the molded fuel port on the side of the fuel tank. Next, 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 bayonet style bulb. The standard replacement bulb number is 53. The Mars Light circuit is
available from our service department.

Bachmann Industries, Inc.
1400 East Erie Ave, Philadelphia, PA 19124 USA
E-7 (Powered) Parts List Rev 10.21.08 Printed in China
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www.bachmanntrains.com
Customer Service Tele
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E7 POWERED A UNIT BODY & BODY PARTS
1027-E003 Body Shell - complete 1
1-30100DFT Screw(Mounts Body to Frame) 4
343-M001R2B Metal Frame 1
293
-
04
-
01
Ornamental Horn
2
293
-
04
-
01
Ornamental
Horn
2
1027-03-01 / 1027-03-02 Upper / Lower Headlight lens 1 each
309-01-01 Red Marker Lens 2
1027-X004R1 Window Glass 1
1027-X003 Cab Window Glass 2
1027-X002 Side & Rear Window Glass 7
1027-M001R5E Metal Chassis 1
315-05-01 Fuel Tank 1
1 25060DPS
Screw(Mounts Fuel Tank to Frame)
4
1
-
25060DPS
S
crew
(M
ounts
F
ue
l
T
an
k
to
F
rame
)
4
TRUCK PARTS
330-04-01B Powered Truck Assembly 2
293-M023FR1 Flanged Wheel 4
293-M024FR1 Flanged Wheel w/groove 4
330-M010B Unflanged Wheel w/Groove 4
293-X003 Traction Tire 4
293-M029NR5 Axle 4
330 M013N
Axle for Helical Gear
2
330
-
M013N
A
x
l
e
f
or
H
e
li
ca
l
G
ear
2
293-M012R5 Helical Gear 2
293-M025DR3 Wheel Gear 4
293-M026DR4 Idler Gear 6
315-M001N Pin for lower Idler gears 4
315-M002N Pin for upper Idler gears 2
1-30060DPM Truck Mounting Screw 2
293-E001 Operating Coupler Assembly 1
343-06-01
Non-Operating Coupler
1
343
-
06
-
01
Non
-
Operating
Coupler
1
885-M013R1 Spring for non-operating coupler 1
1-26060DPWM
M
ounting Screw for non-operating coupler 1
1027-02-01 Pilo
t
1
1-30180DPM Pilot / Rear Ladder Mounting Screw 2
322-E003 Roller Pickup Assembly 1
322-08-01 Top Insulator for Roller Pickup 2
322-08-02 Bottom Insulator for Roller Pickup 2
1
-
26180DPM
Roller Pickup Mounting Screw
2
1
-
26180DPM
Roller
Pickup
Mounting
Screw
2
330-05-01 Sideframe - Lef
t
2
330-05-02 Sideframe - Right 2
293-M021B Front Truck Ladder 1
1027-M003R3B Rear Truck Ladder 1
1-30060DPM Mounting Screw for sideframe & Front Truck Ladder 10
MOTOR PARTS
315-E002 Motor Assembly w/Motor Mount 2
293-10-02B
M
otor Mount 2
293 10 02B
Motor
Mount
2
322-M012R2 Grounding Plate 2
1-26060DPM
M
otor Mount Screw-Large 4
1-30050DCS
M
otor Mount Screw-Small 2
ELECTRONICS
00247 Reverse Board (available from your dealer) 1
00245 True Blast II - Diesel Version (available from your dealer) 1
1027-E004
M
ars Light Circuit w/ bulbs 1
See Diagram on opposite side for identification. Parts shown in Italics are not illustrated.
E-7 (Powered) Parts List Rev 10.21.08 Printed in China