Replacing stock trucks with Outside Swing Hanger trucks

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Truck is ready to roll out. Air brakes have been disconnected, car lifted so truck clears drawbar. 

50 ton jacks lift the car for the truck roll out.  Note chains keep the old truck under compression so springs stay in place, easier to work with.

The wheel set will be used in the new trucks.  The old truck is lifted on one end to let the wheel set drop out.  Pedestal binders have been removed.   

The shop truck is put in place to let the car rest while new truck is prepared.

The old bowl will be used in the manufacture of a new adapter bowl for the new truck.

A wooden mockup for the new bowl adapter was made to test fit.  It is easier to modify wood than steel.

A test fit is done with the wooden mockup before being released for production.

New bearing boxes were fitted on the axil then the truck was lowered onto the assembly.  

The new bowl is being lowered onto the truck.

The new bowl is being put in place over shim.

The new bowl is being lined up, ears dropping over the truck frame. About 400 Lbs. of steel, watch the fingers!

The bowl is in place and bolted to the truck frame.  1" grade 8 bolts are used.  Next step is to set the car bolster into the bowl.   Measurements are taken from side bearings to bowl. 

The car is being lowered onto the bowl.  We put chalk in the bowl to test for contact.  

The bolster has set into the bowl.  The car will be lifted again to test for contact.

The chalk dust has been transferred to the bolster so we have good contact.  The final step will be to add the proper lubricant and clean up. 

Paul is cutting the bolt that keep the pin in place holing the swing-hanger support beam.  

Springs and shims have been removed.  Shims will be cleaned and springs replaced.  The correct combination of shims and springs is key.

Mussel power is needed to set the spring in place.  

Oak blocking placed under the swing-hanger and the car's weight is all applied to the swing-hanger compressing the springs.  Note the equalizer springs are stretched.  

A magnetic drill is used to boar the holes for the side bearing mounts.  A powerful electro magnet holds the drill press in place on the truck.

The side bearing mount holds a roller that will hold the car if it leans to one side.  They normally do not contact the car body.