Bachmann Williams GS-4 Instructions Manual Download Page 2

 

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Printed In China 

 

Whistle Operation 

To operate the horn of your locomotive, simply depress the horn /whistle button on your transformer. Our True Blast™ 
Whistle 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.  

 

Smoke Unit 

This locomotive is equipped with an operating smoke unit. If you wish to use this feature add 10-15 drops of the supplied 
smoke fluid into the smoke stack of the locomotive. Use only Williams by Bachmann® or Bachmann® Fluid. Other 
brands may be too thick and clog the unit.  

 
Uncoupling 

This locomotive is equipped with operating knuckle couplers on the rear of the tender. To uncouple, position the 
uncoupling plunger over the center of electro-magnetic track uncoupling section and activate the magnet. 
 

 

PERIODIC MAINTENANCE 

Disassembly Instructions 

For periodic maintenance, you will have to remove the body shell to gain access to some of the parts that require 
servicing. The body shell is attached with three screws on the bottom of the locomotive chassis. One screw is in the front 
screw and there are two additional screws in the rear. See Figure 1 for the exact location of the screws. Next re-attach the 
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. To gain access to the gearbox, remove body shell as instructed above. Next, unscrew 
the screws that cover the grease box (two small Phillips-head screws in front of the motor assembly). Inspect the gears and 
apply any necessary lubrication. We recommend Bachmann E-Z Lube® #99982 Grease, or equivalent.  Replace the gear 
box cover when complete. 

 

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, you will need to remove the side rods. There are three Hex 
screws and one Phillips-head screw on each side. Note the positions of the rods and any spacers. 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 side rods. Test to make sure the 
rods move freely before applying power to the locomotive. Check at least one complete rotation of the wheels before 
applying any power. You can manually spin the flywheel on the end of the motor to make the wheels spin,. 

 

Light Bulb Replacement 

This locomotive uses an 8 volt bayonet bulb  
 

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