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RailKing SD-90 MAC Operating Manual
OIL & LUBRICATION INSTRUCTIONS
In order for the engine to perform correctly and quietly, it is important that
the chassis be lubricated before operation. Lubrication should include all
truck block bushings and pickup rollers to prevent them from squeaking.
Use light household oil and follow the lubrication points marked “L" in Fig.
6 above.
The locomotive’s internal gearing in both power trucks has been greased at
the factory and shouldn’t’t need additional grease until after 50 hours of
operation or one year whichever comes first. Grease cannot be added to the
internal gearing until the body is removed from the chassis which is held in
place by four Phillips screws. The screws are located on each end of the
chassis’ as seen in Fig. 7 below. After removing the screws, lift the body
away from the chassis and lay the body next to the chassis.
Next, remove the truck blocks from the chassis by unscrewing the large
Phillips motor mount screw on the bottom of each truck block (See Fig. 7).
Once the motor mount screw has been removed, pull the motor away from
Grease (G)
Wheel Gears
Lubricate (L)
Wheel Axle
Lubricate (L)
Pickup Rollers
Figure 6: Lubricating The Locomotive Chassis
Body To Chassis
Mounting Screw
Body To Chassis
Mounting Screw
Motor Mount
Screw
Figure 7: Lubricate The Tender Chassis Trucks
