Walthers Mainline RDC-1, Walthers Mainline RDC-2, Walthers Mainline RDC-3 Operating Instructions Manual
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BUDD RDC Locomotive
Congratulations! You have just purchased one of a series of the finest running locomotives
available today. Equipped with a totally new diecast chassis and a state of the art drive
system, your WalthersMainline locomotive will give you years of enjoyment.
Your new HO Scale BUDD RDC diesel has been carefully assembled and tested before
leaving our modern factory. Additionally, it has been engineered to provide virtually troublefree service and operation.
Removing Shell For Maintenance
Turn the locomotive upside down and remove the couplers by unscrewing the screws
located on the bottom of the coupler boxes. Now locate the four screws (two near each
truck) that attach the body to the chassis. Remove these four screws and pull the body
straight up.
Important: Retain package and all packing materials in case you need to ship
locomotive for servicing.
14
1A
1A
2A
2A
1A
2A
1B
1B
2B
1B
2A
1A
RDC-1
2B
1B
2B
RDC-2
2C
1C
1C
2C
1C
1C
2C
2C
2C
1C
1C
2C
RDC-3
3
Key # RM # Description
1A 922-581965 RDC1 body shell, pilots, doors & detail parts
1B 922-581966 RDC2 body shell, pilots, doors & detail parts
1C 922-581967 RDC3 body shell, pilots, doors & detail parts
2A 922-581968 RDC1 windows
2B 922-581969 RDC2 windows
2C 922-581970 RDC3 windows
3 922-581980 Printed circuit board with lights and attaching parts
4 922-581972 Interior with attaching parts
5 922-581973 Motor with flywheel and mounting parts
6 922-581974 Drive train parts with worm cover
7 922-581975 Frame
8 922-581976 ProtoMax couplers, assembled (1 pr)
9 922-581977 Non-powered truck, complete, assembled
10 922-581978 Powered truck, complete, assembled, with worm cover
11 922-581979 Geared driver (2)
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6
7
8
5
8
9
10
11
RM582315
LUBRICATION AND CLEANING
FREQUENCY
As with any precision mechanical equipment, occasional lubrication and maintenance is
required for optimum performance.
All Walthers locomotives with their precision-engineered reduction gears, motor and chassis
need only occasional, careful lubrication and cleaning.
• Models used infrequently or not at all should not be lubricated more often than once a year.
Excessive amounts of lubricant can migrate to the driver tires and cause reduced tractive
force and grime on railheads.
• Models which are run often and pull long consists on grades should be inspected and
lubricated every two or three months.
INSTRUCTIONS
Bearing Areas. A small patch of cloth held with tweezers should be used to clean bearing
areas before lubrication. With the model upside down, place a drop of light oil at each wheel
bearing. Do no over lubricate.
Worm Gears. By removing the body shell, the snap-on cover over the drive worm can be
removed. Light grease should be applied to the worm gear with a toothpick.
Idler Gears. A drop or two of light oil can also be applied to the plastic idler gears below the
worm gear. As they are made from slippery plastic, the gears require little maintenance.
CONVERSION TO DCC
The circuit board of your WalthersMainline RDC has an 8-pin plug for simple drop-in installation
of a DCC decoder, sold separately, using a small Philips screwdriver.
Please follow these steps:
1) Remove the body shell following the Maintenance Instructions included with your model.
Carefully turn the car upside down. Remove the screws holding both coupler boxes and the
coupler assemblies. Remove two small Philips screws located behind each truck (four total,
two each at front and rear). Pull the body straight up and off the underframe.
2) Read and follow any specific instructions for installing your decoder.
3) Remove the dummy plug from the circuit board, and plug in your decoder.
4) Complete any additional decoder programming if needed, and test run your model to ensure
correct operation.
5) Replace the body and reattach all screws removed in step one.
©2013 Wm. K. Walthers, Inc.
5601 W. Florist Ave. Milwaukee, Wisconsin 53218
www.walthers.com
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