4-6-4 J3a Hudson Steam Locomotive
17
Maintenance
The engine should be well oiled and greased in order to run properly.
You should regularly lubricate all side rods and linkage components to
prevent them from squeaking. Use light household oil and follow the
lubrication points marked “L” in Fig. 11. Do not over-oil. Use only a
drop or two on each pivot point.
DO NOT
OVER OIL
Lubricate Side Rods and Linkage (L) (Both Sides)
Lubricate Axle Bushings (L)
Lubricate Axle Bushings (L)
Figure 11: Lubricating The Chassis
You should also grease the leading and trailing locomotive truck tongues to enhance their
ability to slide on the chassis. Follow the grease points shown on Fig. 12.
Lubricating and Greasing Instructions
Grease Pivot Point (G)
Grease Pivot Point (G)
Figure 12: Greasing the leading and trailing truck pivot points.
The locomotive’s internal gearing was greased at the factory and should not need
additional grease until after 50 hours of operation or one year, whichever comes first. To
access the gear box and axles, do the following:
1. Turn the engine upside down and remove the leading truck mounting screws (you will
have to remove the leading truck plate as well) to gain access to the front boiler mounting
screw. Remove that screw and the two rear boiler mounting screws as seen in Figure 13.
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